中級者向け No.39
FTPクライアント
FTPサーバーに接続してファイルをアップロード・ダウンロード・管理できるGUIクライアント。ftplibの活用を学びます。
📋 目次
1. アプリ概要
FTPサーバーに接続してファイルをアップロード・ダウンロード・管理できるGUIクライアント。ftplibの活用を学びます。
このアプリは中級カテゴリに分類される実践的なGUIアプリです。使用ライブラリは tkinter（標準ライブラリ） で、難易度は ★★★ です。
Pythonでは tkinter を使うことで、クロスプラットフォームなGUIアプリを簡単に作成できます。このアプリを通じて、ウィジェットの配置・イベント処理・データ管理など、GUI開発の実践的なスキルを習得できます。
ソースコードは完全な動作状態で提供しており、コピーしてそのまま実行できます。まずは実行して動作を確認し、その後コードを読んで仕組みを理解していきましょう。カスタマイズセクションでは機能拡張のアイデアも紹介しています。
GUIアプリ開発は、プログラミングの楽しさを実感できる最も効果的な学習方法のひとつです。アプリを作ることで、変数・関数・クラス・イベント処理など、プログラミングの重要な概念が自然と身についていきます。このアプリをきっかけに、オリジナルアプリの開発にも挑戦してみてください。
2. 機能一覧
- FTPクライアントのメイン機能
- 直感的なGUIインターフェース
- 入力値のバリデーション
- エラーハンドリング
- 結果の見やすい表示
- キーボードショートカット対応
3. 事前準備・環境
動作確認環境
Python 3.10 以上 / Windows・Mac・Linux すべて対応
以下の環境で動作確認しています。
- Python 3.10 以上
- OS: Windows 10/11・macOS 12+・Ubuntu 20.04+
4. 完全なソースコード
コードのコピー方法
右上の「コピー」ボタンをクリックするとコードをクリップボードにコピーできます。
app39.py
import tkinter as tk
from tkinter import ttk, messagebox, filedialog
import ftplib
import os
import threading
from datetime import datetime
class App39:
"""FTPクライアント"""
def __init__(self, root):
self.root = root
self.root.title("FTPクライアント")
self.root.geometry("960x660")
self.root.configure(bg="#f8f9fc")
self._ftp = None
self._connected = False
self._current_remote = "/"
self._current_local = os.path.expanduser("~")
self._build_ui()
def _build_ui(self):
# ヘッダー
header = tk.Frame(self.root, bg="#283593", pady=8)
header.pack(fill=tk.X)
tk.Label(header, text="📡 FTPクライアント",
font=("Noto Sans JP", 13, "bold"),
bg="#283593", fg="white").pack(side=tk.LEFT, padx=12)
# 接続パネル
conn_f = ttk.LabelFrame(self.root, text="サーバー接続", padding=8)
conn_f.pack(fill=tk.X, padx=8, pady=6)
lbl_s = {"bg": conn_f.cget("background"), "font": ("Arial", 9)}
row1 = tk.Frame(conn_f, bg=conn_f.cget("background"))
row1.pack(fill=tk.X)
for lbl, attr, width, show in [
("ホスト:", "host_var", 22, ""),
("ポート:", "port_var", 6, ""),
("ユーザー:", "user_var", 14, ""),
("パスワード:", "pass_var", 14, "*"),
]:
tk.Label(row1, text=lbl, **lbl_s).pack(side=tk.LEFT)
var = tk.StringVar()
if lbl == "ポート:":
var.set("21")
setattr(self, attr, var)
entry = ttk.Entry(row1, textvariable=var, width=width, show=show)
entry.pack(side=tk.LEFT, padx=4)
self.connect_btn = ttk.Button(row1, text="🔌 接続",
command=self._toggle_connect)
self.connect_btn.pack(side=tk.LEFT, padx=8)
self.conn_status_var = tk.StringVar(value="未接続")
tk.Label(row1, textvariable=self.conn_status_var,
**lbl_s, fg="#c62828").pack(side=tk.LEFT, padx=8)
# パッシブモード
self.passive_var = tk.BooleanVar(value=True)
ttk.Checkbutton(row1, text="パッシブモード",
variable=self.passive_var).pack(side=tk.LEFT)
# メインエリア
main_paned = ttk.PanedWindow(self.root, orient=tk.HORIZONTAL)
main_paned.pack(fill=tk.BOTH, expand=True, padx=8, pady=4)
# 左: ローカル
local_f = ttk.LabelFrame(main_paned, text="ローカル", padding=4)
main_paned.add(local_f, weight=1)
self._build_local_panel(local_f)
# 中央: 転送ボタン
mid_f = tk.Frame(main_paned, bg="#f8f9fc", width=80)
main_paned.add(mid_f, weight=0)
self._build_transfer_buttons(mid_f)
# 右: リモート
remote_f = ttk.LabelFrame(main_paned, text="リモート", padding=4)
main_paned.add(remote_f, weight=1)
self._build_remote_panel(remote_f)
# ログ
log_f = ttk.LabelFrame(self.root, text="転送ログ", padding=4)
log_f.pack(fill=tk.X, padx=8, pady=4)
self.log_text = tk.Text(log_f, height=5, bg="#0d1117", fg="#c9d1d9",
font=("Courier New", 9), state=tk.DISABLED)
self.log_text.pack(fill=tk.X)
# プログレス
self.progress = ttk.Progressbar(self.root, mode="indeterminate")
self.progress.pack(fill=tk.X, padx=8, pady=2)
self.status_var = tk.StringVar(value="接続待機中")
tk.Label(self.root, textvariable=self.status_var,
bg="#dde", font=("Arial", 9), anchor="w", padx=8
).pack(fill=tk.X, side=tk.BOTTOM)
self._refresh_local()
def _build_local_panel(self, parent):
addr_f = tk.Frame(parent, bg=parent.cget("background"))
addr_f.pack(fill=tk.X, pady=2)
self.local_path_var = tk.StringVar(value=self._current_local)
ttk.Entry(addr_f, textvariable=self.local_path_var,
width=28).pack(side=tk.LEFT, fill=tk.X, expand=True)
ttk.Button(addr_f, text="📂",
command=lambda: (
self.local_path_var.set(
filedialog.askdirectory() or self.local_path_var.get()),
self._refresh_local()
)).pack(side=tk.LEFT, padx=2)
ttk.Button(addr_f, text="🔄",
command=self._refresh_local).pack(side=tk.LEFT, padx=2)
cols = ("icon", "name", "size", "date")
self.local_tree = ttk.Treeview(parent, columns=cols,
show="headings", height=14)
for c, h, w in [("icon", "", 26), ("name", "名前", 180),
("size", "サイズ", 70), ("date", "更新日", 110)]:
self.local_tree.heading(c, text=h)
self.local_tree.column(c, width=w, minwidth=20)
sb = ttk.Scrollbar(parent, command=self.local_tree.yview)
self.local_tree.configure(yscrollcommand=sb.set)
sb.pack(side=tk.RIGHT, fill=tk.Y)
self.local_tree.pack(fill=tk.BOTH, expand=True)
self.local_tree.bind("<Double-1>", self._local_navigate)
def _build_remote_panel(self, parent):
addr_f = tk.Frame(parent, bg=parent.cget("background"))
addr_f.pack(fill=tk.X, pady=2)
self.remote_path_var = tk.StringVar(value="/")
ttk.Entry(addr_f, textvariable=self.remote_path_var,
width=28).pack(side=tk.LEFT, fill=tk.X, expand=True)
ttk.Button(addr_f, text="移動",
command=lambda: self._remote_navigate_to(
self.remote_path_var.get())
).pack(side=tk.LEFT, padx=2)
ttk.Button(addr_f, text="🔄",
command=self._refresh_remote).pack(side=tk.LEFT, padx=2)
cols = ("icon", "name", "size", "date")
self.remote_tree = ttk.Treeview(parent, columns=cols,
show="headings", height=14)
for c, h, w in [("icon", "", 26), ("name", "名前", 180),
("size", "サイズ", 70), ("date", "更新日", 110)]:
self.remote_tree.heading(c, text=h)
self.remote_tree.column(c, width=w, minwidth=20)
sb = ttk.Scrollbar(parent, command=self.remote_tree.yview)
self.remote_tree.configure(yscrollcommand=sb.set)
sb.pack(side=tk.RIGHT, fill=tk.Y)
self.remote_tree.pack(fill=tk.BOTH, expand=True)
self.remote_tree.bind("<Double-1>", self._remote_navigate)
def _build_transfer_buttons(self, parent):
tk.Frame(parent, bg="#f8f9fc").pack(expand=True, fill=tk.BOTH)
for text, cmd in [("→\nアップロード", self._upload),
("←\nダウンロード", self._download),
("🗑\n削除", self._delete_remote),
("📁\n新フォルダ", self._mkdir_remote)]:
tk.Button(parent, text=text, command=cmd,
bg="#e3f2fd", fg="#0d47a1", relief=tk.FLAT,
font=("Arial", 8), width=8, pady=6,
activebackground="#bbdefb").pack(pady=4)
tk.Frame(parent, bg="#f8f9fc").pack(expand=True, fill=tk.BOTH)
# ── ローカルパネル ────────────────────────────────────────────
def _refresh_local(self):
path = self.local_path_var.get().strip()
if not os.path.isdir(path):
path = os.path.expanduser("~")
self.local_path_var.set(path)
self._current_local = path
self.local_tree.delete(*self.local_tree.get_children())
# 親フォルダ
parent = os.path.dirname(path)
if parent != path:
self.local_tree.insert("", "end", iid="__up__",
values=("📁", "..", "", ""))
try:
entries = sorted(os.scandir(path),
key=lambda e: (not e.is_dir(), e.name.lower()))
for entry in entries:
try:
stat = entry.stat()
icon = "📁" if entry.is_dir() else "📄"
size = self._fmt_size(stat.st_size) if not entry.is_dir() else ""
date = datetime.fromtimestamp(
stat.st_mtime).strftime("%Y/%m/%d")
self.local_tree.insert("", "end", iid=entry.path,
values=(icon, entry.name, size, date))
except Exception:
pass
except PermissionError:
pass
def _local_navigate(self, event):
sel = self.local_tree.selection()
if not sel:
return
iid = sel[0]
if iid == "__up__":
parent = os.path.dirname(self._current_local)
self.local_path_var.set(parent)
self._refresh_local()
elif os.path.isdir(iid):
self.local_path_var.set(iid)
self._refresh_local()
# ── 接続 ─────────────────────────────────────────────────────
def _toggle_connect(self):
if self._connected:
self._disconnect()
else:
self._connect()
def _connect(self):
host = self.host_var.get().strip()
if not host:
messagebox.showwarning("警告", "ホスト名を入力してください")
return
self.connect_btn.config(state=tk.DISABLED)
self.progress.start(10)
threading.Thread(target=self._do_connect, daemon=True).start()
def _do_connect(self):
host = self.host_var.get().strip()
port = int(self.port_var.get() or 21)
user = self.user_var.get().strip() or "anonymous"
passwd = self.pass_var.get()
passive = self.passive_var.get()
try:
ftp = ftplib.FTP()
ftp.connect(host, port, timeout=15)
ftp.login(user, passwd)
ftp.set_pasv(passive)
self._ftp = ftp
self._connected = True
self._current_remote = ftp.pwd()
self.root.after(0, self._on_connected)
except Exception as e:
self.root.after(0, self._on_connect_error, str(e))
def _on_connected(self):
self.progress.stop()
self.connect_btn.config(state=tk.NORMAL, text="🔌 切断")
self.conn_status_var.set(f"接続済み: {self.host_var.get()}")
self.remote_path_var.set(self._current_remote)
self._log(f"接続しました: {self.host_var.get()}")
self._refresh_remote()
def _on_connect_error(self, msg):
self.progress.stop()
self.connect_btn.config(state=tk.NORMAL)
self.conn_status_var.set("接続失敗")
messagebox.showerror("接続エラー", msg)
def _disconnect(self):
if self._ftp:
try:
self._ftp.quit()
except Exception:
pass
self._ftp = None
self._connected = False
self.connect_btn.config(text="🔌 接続")
self.conn_status_var.set("未接続")
self.remote_tree.delete(*self.remote_tree.get_children())
self._log("切断しました")
# ── リモートパネル ────────────────────────────────────────────
def _refresh_remote(self):
if not self._connected:
return
threading.Thread(target=self._do_refresh_remote, daemon=True).start()
def _do_refresh_remote(self):
try:
items = []
self._ftp.cwd(self._current_remote)
self._ftp.retrlines("LIST", lambda line: items.append(line))
self.root.after(0, self._show_remote_list, items)
except Exception as e:
self.root.after(0, self._log, f"エラー: {e}")
def _show_remote_list(self, items):
self.remote_tree.delete(*self.remote_tree.get_children())
parent_path = os.path.dirname(self._current_remote.rstrip("/"))
if parent_path and parent_path != self._current_remote:
self.remote_tree.insert("", "end", iid="__up__",
values=("📁", "..", "", ""))
for line in items:
parts = line.split()
if len(parts) < 9:
continue
perms = parts[0]
size = parts[4]
name = " ".join(parts[8:])
date = f"{parts[5]} {parts[6]} {parts[7]}"
is_dir = perms.startswith("d")
icon = "📁" if is_dir else "📄"
self.remote_tree.insert("", "end",
iid=name,
values=(icon, name,
self._fmt_size(int(size)) if not is_dir else "",
date))
self.remote_path_var.set(self._current_remote)
def _remote_navigate(self, event):
sel = self.remote_tree.selection()
if not sel:
return
name = sel[0]
if name == "__up__":
parent = os.path.dirname(self._current_remote.rstrip("/"))
self._remote_navigate_to(parent or "/")
else:
icon = self.remote_tree.set(name, "icon")
if icon == "📁":
path = self._current_remote.rstrip("/") + "/" + name
self._remote_navigate_to(path)
def _remote_navigate_to(self, path):
if not self._connected:
return
self._current_remote = path
self._refresh_remote()
# ── 転送操作 ─────────────────────────────────────────────────
def _upload(self):
if not self._connected:
messagebox.showwarning("警告", "先に接続してください")
return
sel = self.local_tree.selection()
if not sel:
messagebox.showwarning("警告", "ローカルファイルを選択してください")
return
paths = [s for s in sel if s != "__up__" and os.path.isfile(s)]
if not paths:
return
self.progress.start(10)
threading.Thread(target=self._do_upload,
args=(paths,), daemon=True).start()
def _do_upload(self, paths):
for local_path in paths:
name = os.path.basename(local_path)
try:
with open(local_path, "rb") as f:
remote_path = self._current_remote.rstrip("/") + "/" + name
self._ftp.storbinary(f"STOR {name}", f)
self.root.after(0, self._log, f"↑ アップロード: {name}")
except Exception as e:
self.root.after(0, self._log, f"エラー: {name} - {e}")
self.root.after(0, self.progress.stop)
self.root.after(0, self._refresh_remote)
def _download(self):
if not self._connected:
messagebox.showwarning("警告", "先に接続してください")
return
sel = self.remote_tree.selection()
if not sel:
messagebox.showwarning("警告", "リモートファイルを選択してください")
return
files = [s for s in sel if s != "__up__" and
self.remote_tree.set(s, "icon") == "📄"]
if not files:
return
self.progress.start(10)
threading.Thread(target=self._do_download,
args=(files,), daemon=True).start()
def _do_download(self, files):
for name in files:
local_path = os.path.join(self._current_local, name)
try:
with open(local_path, "wb") as f:
self._ftp.retrbinary(f"RETR {name}", f.write)
self.root.after(0, self._log, f"↓ ダウンロード: {name}")
except Exception as e:
self.root.after(0, self._log, f"エラー: {name} - {e}")
self.root.after(0, self.progress.stop)
self.root.after(0, self._refresh_local)
def _delete_remote(self):
if not self._connected:
return
sel = self.remote_tree.selection()
if not sel or not messagebox.askyesno("確認", "選択ファイルを削除しますか?"):
return
for name in sel:
if name == "__up__":
continue
try:
icon = self.remote_tree.set(name, "icon")
if icon == "📁":
self._ftp.rmd(name)
else:
self._ftp.delete(name)
self._log(f"削除: {name}")
except Exception as e:
self._log(f"削除エラー: {name} - {e}")
self._refresh_remote()
def _mkdir_remote(self):
if not self._connected:
return
win = tk.Toplevel(self.root)
win.title("新規フォルダ")
win.geometry("260x100")
tk.Label(win, text="フォルダ名:").pack(pady=8)
var = tk.StringVar()
ttk.Entry(win, textvariable=var, width=24).pack()
def create():
name = var.get().strip()
if name:
try:
self._ftp.mkd(self._current_remote.rstrip("/") + "/" + name)
self._log(f"フォルダ作成: {name}")
self._refresh_remote()
except Exception as e:
messagebox.showerror("エラー", str(e))
win.destroy()
ttk.Button(win, text="作成", command=create).pack(pady=6)
def _log(self, message):
now = datetime.now().strftime("%H:%M:%S")
self.log_text.config(state=tk.NORMAL)
self.log_text.insert(tk.END, f"[{now}] {message}\n")
self.log_text.see(tk.END)
self.log_text.config(state=tk.DISABLED)
def _fmt_size(self, size):
for unit in ["B", "KB", "MB", "GB"]:
if size < 1024:
return f"{size:.0f}{unit}"
size /= 1024
return f"{size:.1f}TB"
if __name__ == "__main__":
root = tk.Tk()
app = App39(root)
root.mainloop()
5. コード解説
FTPクライアントのコードを詳しく解説します。クラスベースの設計で各機能を整理して実装しています。
クラス設計とコンストラクタ
App39クラスにアプリの全機能をまとめています。__init__メソッドでウィンドウの基本設定を行い、_build_ui()でUI構築、process()でメイン処理を担当します。この分離により、各メソッドの責任が明確になりコードが読みやすくなります。
import tkinter as tk
from tkinter import ttk, messagebox, filedialog
import ftplib
import os
import threading
from datetime import datetime
class App39:
"""FTPクライアント"""
def __init__(self, root):
self.root = root
self.root.title("FTPクライアント")
self.root.geometry("960x660")
self.root.configure(bg="#f8f9fc")
self._ftp = None
self._connected = False
self._current_remote = "/"
self._current_local = os.path.expanduser("~")
self._build_ui()
def _build_ui(self):
# ヘッダー
header = tk.Frame(self.root, bg="#283593", pady=8)
header.pack(fill=tk.X)
tk.Label(header, text="📡 FTPクライアント",
font=("Noto Sans JP", 13, "bold"),
bg="#283593", fg="white").pack(side=tk.LEFT, padx=12)
# 接続パネル
conn_f = ttk.LabelFrame(self.root, text="サーバー接続", padding=8)
conn_f.pack(fill=tk.X, padx=8, pady=6)
lbl_s = {"bg": conn_f.cget("background"), "font": ("Arial", 9)}
row1 = tk.Frame(conn_f, bg=conn_f.cget("background"))
row1.pack(fill=tk.X)
for lbl, attr, width, show in [
("ホスト:", "host_var", 22, ""),
("ポート:", "port_var", 6, ""),
("ユーザー:", "user_var", 14, ""),
("パスワード:", "pass_var", 14, "*"),
]:
tk.Label(row1, text=lbl, **lbl_s).pack(side=tk.LEFT)
var = tk.StringVar()
if lbl == "ポート:":
var.set("21")
setattr(self, attr, var)
entry = ttk.Entry(row1, textvariable=var, width=width, show=show)
entry.pack(side=tk.LEFT, padx=4)
self.connect_btn = ttk.Button(row1, text="🔌 接続",
command=self._toggle_connect)
self.connect_btn.pack(side=tk.LEFT, padx=8)
self.conn_status_var = tk.StringVar(value="未接続")
tk.Label(row1, textvariable=self.conn_status_var,
**lbl_s, fg="#c62828").pack(side=tk.LEFT, padx=8)
# パッシブモード
self.passive_var = tk.BooleanVar(value=True)
ttk.Checkbutton(row1, text="パッシブモード",
variable=self.passive_var).pack(side=tk.LEFT)
# メインエリア
main_paned = ttk.PanedWindow(self.root, orient=tk.HORIZONTAL)
main_paned.pack(fill=tk.BOTH, expand=True, padx=8, pady=4)
# 左: ローカル
local_f = ttk.LabelFrame(main_paned, text="ローカル", padding=4)
main_paned.add(local_f, weight=1)
self._build_local_panel(local_f)
# 中央: 転送ボタン
mid_f = tk.Frame(main_paned, bg="#f8f9fc", width=80)
main_paned.add(mid_f, weight=0)
self._build_transfer_buttons(mid_f)
# 右: リモート
remote_f = ttk.LabelFrame(main_paned, text="リモート", padding=4)
main_paned.add(remote_f, weight=1)
self._build_remote_panel(remote_f)
# ログ
log_f = ttk.LabelFrame(self.root, text="転送ログ", padding=4)
log_f.pack(fill=tk.X, padx=8, pady=4)
self.log_text = tk.Text(log_f, height=5, bg="#0d1117", fg="#c9d1d9",
font=("Courier New", 9), state=tk.DISABLED)
self.log_text.pack(fill=tk.X)
# プログレス
self.progress = ttk.Progressbar(self.root, mode="indeterminate")
self.progress.pack(fill=tk.X, padx=8, pady=2)
self.status_var = tk.StringVar(value="接続待機中")
tk.Label(self.root, textvariable=self.status_var,
bg="#dde", font=("Arial", 9), anchor="w", padx=8
).pack(fill=tk.X, side=tk.BOTTOM)
self._refresh_local()
def _build_local_panel(self, parent):
addr_f = tk.Frame(parent, bg=parent.cget("background"))
addr_f.pack(fill=tk.X, pady=2)
self.local_path_var = tk.StringVar(value=self._current_local)
ttk.Entry(addr_f, textvariable=self.local_path_var,
width=28).pack(side=tk.LEFT, fill=tk.X, expand=True)
ttk.Button(addr_f, text="📂",
command=lambda: (
self.local_path_var.set(
filedialog.askdirectory() or self.local_path_var.get()),
self._refresh_local()
)).pack(side=tk.LEFT, padx=2)
ttk.Button(addr_f, text="🔄",
command=self._refresh_local).pack(side=tk.LEFT, padx=2)
cols = ("icon", "name", "size", "date")
self.local_tree = ttk.Treeview(parent, columns=cols,
show="headings", height=14)
for c, h, w in [("icon", "", 26), ("name", "名前", 180),
("size", "サイズ", 70), ("date", "更新日", 110)]:
self.local_tree.heading(c, text=h)
self.local_tree.column(c, width=w, minwidth=20)
sb = ttk.Scrollbar(parent, command=self.local_tree.yview)
self.local_tree.configure(yscrollcommand=sb.set)
sb.pack(side=tk.RIGHT, fill=tk.Y)
self.local_tree.pack(fill=tk.BOTH, expand=True)
self.local_tree.bind("<Double-1>", self._local_navigate)
def _build_remote_panel(self, parent):
addr_f = tk.Frame(parent, bg=parent.cget("background"))
addr_f.pack(fill=tk.X, pady=2)
self.remote_path_var = tk.StringVar(value="/")
ttk.Entry(addr_f, textvariable=self.remote_path_var,
width=28).pack(side=tk.LEFT, fill=tk.X, expand=True)
ttk.Button(addr_f, text="移動",
command=lambda: self._remote_navigate_to(
self.remote_path_var.get())
).pack(side=tk.LEFT, padx=2)
ttk.Button(addr_f, text="🔄",
command=self._refresh_remote).pack(side=tk.LEFT, padx=2)
cols = ("icon", "name", "size", "date")
self.remote_tree = ttk.Treeview(parent, columns=cols,
show="headings", height=14)
for c, h, w in [("icon", "", 26), ("name", "名前", 180),
("size", "サイズ", 70), ("date", "更新日", 110)]:
self.remote_tree.heading(c, text=h)
self.remote_tree.column(c, width=w, minwidth=20)
sb = ttk.Scrollbar(parent, command=self.remote_tree.yview)
self.remote_tree.configure(yscrollcommand=sb.set)
sb.pack(side=tk.RIGHT, fill=tk.Y)
self.remote_tree.pack(fill=tk.BOTH, expand=True)
self.remote_tree.bind("<Double-1>", self._remote_navigate)
def _build_transfer_buttons(self, parent):
tk.Frame(parent, bg="#f8f9fc").pack(expand=True, fill=tk.BOTH)
for text, cmd in [("→\nアップロード", self._upload),
("←\nダウンロード", self._download),
("🗑\n削除", self._delete_remote),
("📁\n新フォルダ", self._mkdir_remote)]:
tk.Button(parent, text=text, command=cmd,
bg="#e3f2fd", fg="#0d47a1", relief=tk.FLAT,
font=("Arial", 8), width=8, pady=6,
activebackground="#bbdefb").pack(pady=4)
tk.Frame(parent, bg="#f8f9fc").pack(expand=True, fill=tk.BOTH)
# ── ローカルパネル ────────────────────────────────────────────
def _refresh_local(self):
path = self.local_path_var.get().strip()
if not os.path.isdir(path):
path = os.path.expanduser("~")
self.local_path_var.set(path)
self._current_local = path
self.local_tree.delete(*self.local_tree.get_children())
# 親フォルダ
parent = os.path.dirname(path)
if parent != path:
self.local_tree.insert("", "end", iid="__up__",
values=("📁", "..", "", ""))
try:
entries = sorted(os.scandir(path),
key=lambda e: (not e.is_dir(), e.name.lower()))
for entry in entries:
try:
stat = entry.stat()
icon = "📁" if entry.is_dir() else "📄"
size = self._fmt_size(stat.st_size) if not entry.is_dir() else ""
date = datetime.fromtimestamp(
stat.st_mtime).strftime("%Y/%m/%d")
self.local_tree.insert("", "end", iid=entry.path,
values=(icon, entry.name, size, date))
except Exception:
pass
except PermissionError:
pass
def _local_navigate(self, event):
sel = self.local_tree.selection()
if not sel:
return
iid = sel[0]
if iid == "__up__":
parent = os.path.dirname(self._current_local)
self.local_path_var.set(parent)
self._refresh_local()
elif os.path.isdir(iid):
self.local_path_var.set(iid)
self._refresh_local()
# ── 接続 ─────────────────────────────────────────────────────
def _toggle_connect(self):
if self._connected:
self._disconnect()
else:
self._connect()
def _connect(self):
host = self.host_var.get().strip()
if not host:
messagebox.showwarning("警告", "ホスト名を入力してください")
return
self.connect_btn.config(state=tk.DISABLED)
self.progress.start(10)
threading.Thread(target=self._do_connect, daemon=True).start()
def _do_connect(self):
host = self.host_var.get().strip()
port = int(self.port_var.get() or 21)
user = self.user_var.get().strip() or "anonymous"
passwd = self.pass_var.get()
passive = self.passive_var.get()
try:
ftp = ftplib.FTP()
ftp.connect(host, port, timeout=15)
ftp.login(user, passwd)
ftp.set_pasv(passive)
self._ftp = ftp
self._connected = True
self._current_remote = ftp.pwd()
self.root.after(0, self._on_connected)
except Exception as e:
self.root.after(0, self._on_connect_error, str(e))
def _on_connected(self):
self.progress.stop()
self.connect_btn.config(state=tk.NORMAL, text="🔌 切断")
self.conn_status_var.set(f"接続済み: {self.host_var.get()}")
self.remote_path_var.set(self._current_remote)
self._log(f"接続しました: {self.host_var.get()}")
self._refresh_remote()
def _on_connect_error(self, msg):
self.progress.stop()
self.connect_btn.config(state=tk.NORMAL)
self.conn_status_var.set("接続失敗")
messagebox.showerror("接続エラー", msg)
def _disconnect(self):
if self._ftp:
try:
self._ftp.quit()
except Exception:
pass
self._ftp = None
self._connected = False
self.connect_btn.config(text="🔌 接続")
self.conn_status_var.set("未接続")
self.remote_tree.delete(*self.remote_tree.get_children())
self._log("切断しました")
# ── リモートパネル ────────────────────────────────────────────
def _refresh_remote(self):
if not self._connected:
return
threading.Thread(target=self._do_refresh_remote, daemon=True).start()
def _do_refresh_remote(self):
try:
items = []
self._ftp.cwd(self._current_remote)
self._ftp.retrlines("LIST", lambda line: items.append(line))
self.root.after(0, self._show_remote_list, items)
except Exception as e:
self.root.after(0, self._log, f"エラー: {e}")
def _show_remote_list(self, items):
self.remote_tree.delete(*self.remote_tree.get_children())
parent_path = os.path.dirname(self._current_remote.rstrip("/"))
if parent_path and parent_path != self._current_remote:
self.remote_tree.insert("", "end", iid="__up__",
values=("📁", "..", "", ""))
for line in items:
parts = line.split()
if len(parts) < 9:
continue
perms = parts[0]
size = parts[4]
name = " ".join(parts[8:])
date = f"{parts[5]} {parts[6]} {parts[7]}"
is_dir = perms.startswith("d")
icon = "📁" if is_dir else "📄"
self.remote_tree.insert("", "end",
iid=name,
values=(icon, name,
self._fmt_size(int(size)) if not is_dir else "",
date))
self.remote_path_var.set(self._current_remote)
def _remote_navigate(self, event):
sel = self.remote_tree.selection()
if not sel:
return
name = sel[0]
if name == "__up__":
parent = os.path.dirname(self._current_remote.rstrip("/"))
self._remote_navigate_to(parent or "/")
else:
icon = self.remote_tree.set(name, "icon")
if icon == "📁":
path = self._current_remote.rstrip("/") + "/" + name
self._remote_navigate_to(path)
def _remote_navigate_to(self, path):
if not self._connected:
return
self._current_remote = path
self._refresh_remote()
# ── 転送操作 ─────────────────────────────────────────────────
def _upload(self):
if not self._connected:
messagebox.showwarning("警告", "先に接続してください")
return
sel = self.local_tree.selection()
if not sel:
messagebox.showwarning("警告", "ローカルファイルを選択してください")
return
paths = [s for s in sel if s != "__up__" and os.path.isfile(s)]
if not paths:
return
self.progress.start(10)
threading.Thread(target=self._do_upload,
args=(paths,), daemon=True).start()
def _do_upload(self, paths):
for local_path in paths:
name = os.path.basename(local_path)
try:
with open(local_path, "rb") as f:
remote_path = self._current_remote.rstrip("/") + "/" + name
self._ftp.storbinary(f"STOR {name}", f)
self.root.after(0, self._log, f"↑ アップロード: {name}")
except Exception as e:
self.root.after(0, self._log, f"エラー: {name} - {e}")
self.root.after(0, self.progress.stop)
self.root.after(0, self._refresh_remote)
def _download(self):
if not self._connected:
messagebox.showwarning("警告", "先に接続してください")
return
sel = self.remote_tree.selection()
if not sel:
messagebox.showwarning("警告", "リモートファイルを選択してください")
return
files = [s for s in sel if s != "__up__" and
self.remote_tree.set(s, "icon") == "📄"]
if not files:
return
self.progress.start(10)
threading.Thread(target=self._do_download,
args=(files,), daemon=True).start()
def _do_download(self, files):
for name in files:
local_path = os.path.join(self._current_local, name)
try:
with open(local_path, "wb") as f:
self._ftp.retrbinary(f"RETR {name}", f.write)
self.root.after(0, self._log, f"↓ ダウンロード: {name}")
except Exception as e:
self.root.after(0, self._log, f"エラー: {name} - {e}")
self.root.after(0, self.progress.stop)
self.root.after(0, self._refresh_local)
def _delete_remote(self):
if not self._connected:
return
sel = self.remote_tree.selection()
if not sel or not messagebox.askyesno("確認", "選択ファイルを削除しますか?"):
return
for name in sel:
if name == "__up__":
continue
try:
icon = self.remote_tree.set(name, "icon")
if icon == "📁":
self._ftp.rmd(name)
else:
self._ftp.delete(name)
self._log(f"削除: {name}")
except Exception as e:
self._log(f"削除エラー: {name} - {e}")
self._refresh_remote()
def _mkdir_remote(self):
if not self._connected:
return
win = tk.Toplevel(self.root)
win.title("新規フォルダ")
win.geometry("260x100")
tk.Label(win, text="フォルダ名:").pack(pady=8)
var = tk.StringVar()
ttk.Entry(win, textvariable=var, width=24).pack()
def create():
name = var.get().strip()
if name:
try:
self._ftp.mkd(self._current_remote.rstrip("/") + "/" + name)
self._log(f"フォルダ作成: {name}")
self._refresh_remote()
except Exception as e:
messagebox.showerror("エラー", str(e))
win.destroy()
ttk.Button(win, text="作成", command=create).pack(pady=6)
def _log(self, message):
now = datetime.now().strftime("%H:%M:%S")
self.log_text.config(state=tk.NORMAL)
self.log_text.insert(tk.END, f"[{now}] {message}\n")
self.log_text.see(tk.END)
self.log_text.config(state=tk.DISABLED)
def _fmt_size(self, size):
for unit in ["B", "KB", "MB", "GB"]:
if size < 1024:
return f"{size:.0f}{unit}"
size /= 1024
return f"{size:.1f}TB"
if __name__ == "__main__":
root = tk.Tk()
app = App39(root)
root.mainloop()
LabelFrameによるセクション分け
ttk.LabelFrame を使うことで、入力エリアと結果エリアを視覚的に分けられます。padding引数でフレーム内の余白を設定し、見やすいレイアウトを実現しています。
import tkinter as tk
from tkinter import ttk, messagebox, filedialog
import ftplib
import os
import threading
from datetime import datetime
class App39:
"""FTPクライアント"""
def __init__(self, root):
self.root = root
self.root.title("FTPクライアント")
self.root.geometry("960x660")
self.root.configure(bg="#f8f9fc")
self._ftp = None
self._connected = False
self._current_remote = "/"
self._current_local = os.path.expanduser("~")
self._build_ui()
def _build_ui(self):
# ヘッダー
header = tk.Frame(self.root, bg="#283593", pady=8)
header.pack(fill=tk.X)
tk.Label(header, text="📡 FTPクライアント",
font=("Noto Sans JP", 13, "bold"),
bg="#283593", fg="white").pack(side=tk.LEFT, padx=12)
# 接続パネル
conn_f = ttk.LabelFrame(self.root, text="サーバー接続", padding=8)
conn_f.pack(fill=tk.X, padx=8, pady=6)
lbl_s = {"bg": conn_f.cget("background"), "font": ("Arial", 9)}
row1 = tk.Frame(conn_f, bg=conn_f.cget("background"))
row1.pack(fill=tk.X)
for lbl, attr, width, show in [
("ホスト:", "host_var", 22, ""),
("ポート:", "port_var", 6, ""),
("ユーザー:", "user_var", 14, ""),
("パスワード:", "pass_var", 14, "*"),
]:
tk.Label(row1, text=lbl, **lbl_s).pack(side=tk.LEFT)
var = tk.StringVar()
if lbl == "ポート:":
var.set("21")
setattr(self, attr, var)
entry = ttk.Entry(row1, textvariable=var, width=width, show=show)
entry.pack(side=tk.LEFT, padx=4)
self.connect_btn = ttk.Button(row1, text="🔌 接続",
command=self._toggle_connect)
self.connect_btn.pack(side=tk.LEFT, padx=8)
self.conn_status_var = tk.StringVar(value="未接続")
tk.Label(row1, textvariable=self.conn_status_var,
**lbl_s, fg="#c62828").pack(side=tk.LEFT, padx=8)
# パッシブモード
self.passive_var = tk.BooleanVar(value=True)
ttk.Checkbutton(row1, text="パッシブモード",
variable=self.passive_var).pack(side=tk.LEFT)
# メインエリア
main_paned = ttk.PanedWindow(self.root, orient=tk.HORIZONTAL)
main_paned.pack(fill=tk.BOTH, expand=True, padx=8, pady=4)
# 左: ローカル
local_f = ttk.LabelFrame(main_paned, text="ローカル", padding=4)
main_paned.add(local_f, weight=1)
self._build_local_panel(local_f)
# 中央: 転送ボタン
mid_f = tk.Frame(main_paned, bg="#f8f9fc", width=80)
main_paned.add(mid_f, weight=0)
self._build_transfer_buttons(mid_f)
# 右: リモート
remote_f = ttk.LabelFrame(main_paned, text="リモート", padding=4)
main_paned.add(remote_f, weight=1)
self._build_remote_panel(remote_f)
# ログ
log_f = ttk.LabelFrame(self.root, text="転送ログ", padding=4)
log_f.pack(fill=tk.X, padx=8, pady=4)
self.log_text = tk.Text(log_f, height=5, bg="#0d1117", fg="#c9d1d9",
font=("Courier New", 9), state=tk.DISABLED)
self.log_text.pack(fill=tk.X)
# プログレス
self.progress = ttk.Progressbar(self.root, mode="indeterminate")
self.progress.pack(fill=tk.X, padx=8, pady=2)
self.status_var = tk.StringVar(value="接続待機中")
tk.Label(self.root, textvariable=self.status_var,
bg="#dde", font=("Arial", 9), anchor="w", padx=8
).pack(fill=tk.X, side=tk.BOTTOM)
self._refresh_local()
def _build_local_panel(self, parent):
addr_f = tk.Frame(parent, bg=parent.cget("background"))
addr_f.pack(fill=tk.X, pady=2)
self.local_path_var = tk.StringVar(value=self._current_local)
ttk.Entry(addr_f, textvariable=self.local_path_var,
width=28).pack(side=tk.LEFT, fill=tk.X, expand=True)
ttk.Button(addr_f, text="📂",
command=lambda: (
self.local_path_var.set(
filedialog.askdirectory() or self.local_path_var.get()),
self._refresh_local()
)).pack(side=tk.LEFT, padx=2)
ttk.Button(addr_f, text="🔄",
command=self._refresh_local).pack(side=tk.LEFT, padx=2)
cols = ("icon", "name", "size", "date")
self.local_tree = ttk.Treeview(parent, columns=cols,
show="headings", height=14)
for c, h, w in [("icon", "", 26), ("name", "名前", 180),
("size", "サイズ", 70), ("date", "更新日", 110)]:
self.local_tree.heading(c, text=h)
self.local_tree.column(c, width=w, minwidth=20)
sb = ttk.Scrollbar(parent, command=self.local_tree.yview)
self.local_tree.configure(yscrollcommand=sb.set)
sb.pack(side=tk.RIGHT, fill=tk.Y)
self.local_tree.pack(fill=tk.BOTH, expand=True)
self.local_tree.bind("<Double-1>", self._local_navigate)
def _build_remote_panel(self, parent):
addr_f = tk.Frame(parent, bg=parent.cget("background"))
addr_f.pack(fill=tk.X, pady=2)
self.remote_path_var = tk.StringVar(value="/")
ttk.Entry(addr_f, textvariable=self.remote_path_var,
width=28).pack(side=tk.LEFT, fill=tk.X, expand=True)
ttk.Button(addr_f, text="移動",
command=lambda: self._remote_navigate_to(
self.remote_path_var.get())
).pack(side=tk.LEFT, padx=2)
ttk.Button(addr_f, text="🔄",
command=self._refresh_remote).pack(side=tk.LEFT, padx=2)
cols = ("icon", "name", "size", "date")
self.remote_tree = ttk.Treeview(parent, columns=cols,
show="headings", height=14)
for c, h, w in [("icon", "", 26), ("name", "名前", 180),
("size", "サイズ", 70), ("date", "更新日", 110)]:
self.remote_tree.heading(c, text=h)
self.remote_tree.column(c, width=w, minwidth=20)
sb = ttk.Scrollbar(parent, command=self.remote_tree.yview)
self.remote_tree.configure(yscrollcommand=sb.set)
sb.pack(side=tk.RIGHT, fill=tk.Y)
self.remote_tree.pack(fill=tk.BOTH, expand=True)
self.remote_tree.bind("<Double-1>", self._remote_navigate)
def _build_transfer_buttons(self, parent):
tk.Frame(parent, bg="#f8f9fc").pack(expand=True, fill=tk.BOTH)
for text, cmd in [("→\nアップロード", self._upload),
("←\nダウンロード", self._download),
("🗑\n削除", self._delete_remote),
("📁\n新フォルダ", self._mkdir_remote)]:
tk.Button(parent, text=text, command=cmd,
bg="#e3f2fd", fg="#0d47a1", relief=tk.FLAT,
font=("Arial", 8), width=8, pady=6,
activebackground="#bbdefb").pack(pady=4)
tk.Frame(parent, bg="#f8f9fc").pack(expand=True, fill=tk.BOTH)
# ── ローカルパネル ────────────────────────────────────────────
def _refresh_local(self):
path = self.local_path_var.get().strip()
if not os.path.isdir(path):
path = os.path.expanduser("~")
self.local_path_var.set(path)
self._current_local = path
self.local_tree.delete(*self.local_tree.get_children())
# 親フォルダ
parent = os.path.dirname(path)
if parent != path:
self.local_tree.insert("", "end", iid="__up__",
values=("📁", "..", "", ""))
try:
entries = sorted(os.scandir(path),
key=lambda e: (not e.is_dir(), e.name.lower()))
for entry in entries:
try:
stat = entry.stat()
icon = "📁" if entry.is_dir() else "📄"
size = self._fmt_size(stat.st_size) if not entry.is_dir() else ""
date = datetime.fromtimestamp(
stat.st_mtime).strftime("%Y/%m/%d")
self.local_tree.insert("", "end", iid=entry.path,
values=(icon, entry.name, size, date))
except Exception:
pass
except PermissionError:
pass
def _local_navigate(self, event):
sel = self.local_tree.selection()
if not sel:
return
iid = sel[0]
if iid == "__up__":
parent = os.path.dirname(self._current_local)
self.local_path_var.set(parent)
self._refresh_local()
elif os.path.isdir(iid):
self.local_path_var.set(iid)
self._refresh_local()
# ── 接続 ─────────────────────────────────────────────────────
def _toggle_connect(self):
if self._connected:
self._disconnect()
else:
self._connect()
def _connect(self):
host = self.host_var.get().strip()
if not host:
messagebox.showwarning("警告", "ホスト名を入力してください")
return
self.connect_btn.config(state=tk.DISABLED)
self.progress.start(10)
threading.Thread(target=self._do_connect, daemon=True).start()
def _do_connect(self):
host = self.host_var.get().strip()
port = int(self.port_var.get() or 21)
user = self.user_var.get().strip() or "anonymous"
passwd = self.pass_var.get()
passive = self.passive_var.get()
try:
ftp = ftplib.FTP()
ftp.connect(host, port, timeout=15)
ftp.login(user, passwd)
ftp.set_pasv(passive)
self._ftp = ftp
self._connected = True
self._current_remote = ftp.pwd()
self.root.after(0, self._on_connected)
except Exception as e:
self.root.after(0, self._on_connect_error, str(e))
def _on_connected(self):
self.progress.stop()
self.connect_btn.config(state=tk.NORMAL, text="🔌 切断")
self.conn_status_var.set(f"接続済み: {self.host_var.get()}")
self.remote_path_var.set(self._current_remote)
self._log(f"接続しました: {self.host_var.get()}")
self._refresh_remote()
def _on_connect_error(self, msg):
self.progress.stop()
self.connect_btn.config(state=tk.NORMAL)
self.conn_status_var.set("接続失敗")
messagebox.showerror("接続エラー", msg)
def _disconnect(self):
if self._ftp:
try:
self._ftp.quit()
except Exception:
pass
self._ftp = None
self._connected = False
self.connect_btn.config(text="🔌 接続")
self.conn_status_var.set("未接続")
self.remote_tree.delete(*self.remote_tree.get_children())
self._log("切断しました")
# ── リモートパネル ────────────────────────────────────────────
def _refresh_remote(self):
if not self._connected:
return
threading.Thread(target=self._do_refresh_remote, daemon=True).start()
def _do_refresh_remote(self):
try:
items = []
self._ftp.cwd(self._current_remote)
self._ftp.retrlines("LIST", lambda line: items.append(line))
self.root.after(0, self._show_remote_list, items)
except Exception as e:
self.root.after(0, self._log, f"エラー: {e}")
def _show_remote_list(self, items):
self.remote_tree.delete(*self.remote_tree.get_children())
parent_path = os.path.dirname(self._current_remote.rstrip("/"))
if parent_path and parent_path != self._current_remote:
self.remote_tree.insert("", "end", iid="__up__",
values=("📁", "..", "", ""))
for line in items:
parts = line.split()
if len(parts) < 9:
continue
perms = parts[0]
size = parts[4]
name = " ".join(parts[8:])
date = f"{parts[5]} {parts[6]} {parts[7]}"
is_dir = perms.startswith("d")
icon = "📁" if is_dir else "📄"
self.remote_tree.insert("", "end",
iid=name,
values=(icon, name,
self._fmt_size(int(size)) if not is_dir else "",
date))
self.remote_path_var.set(self._current_remote)
def _remote_navigate(self, event):
sel = self.remote_tree.selection()
if not sel:
return
name = sel[0]
if name == "__up__":
parent = os.path.dirname(self._current_remote.rstrip("/"))
self._remote_navigate_to(parent or "/")
else:
icon = self.remote_tree.set(name, "icon")
if icon == "📁":
path = self._current_remote.rstrip("/") + "/" + name
self._remote_navigate_to(path)
def _remote_navigate_to(self, path):
if not self._connected:
return
self._current_remote = path
self._refresh_remote()
# ── 転送操作 ─────────────────────────────────────────────────
def _upload(self):
if not self._connected:
messagebox.showwarning("警告", "先に接続してください")
return
sel = self.local_tree.selection()
if not sel:
messagebox.showwarning("警告", "ローカルファイルを選択してください")
return
paths = [s for s in sel if s != "__up__" and os.path.isfile(s)]
if not paths:
return
self.progress.start(10)
threading.Thread(target=self._do_upload,
args=(paths,), daemon=True).start()
def _do_upload(self, paths):
for local_path in paths:
name = os.path.basename(local_path)
try:
with open(local_path, "rb") as f:
remote_path = self._current_remote.rstrip("/") + "/" + name
self._ftp.storbinary(f"STOR {name}", f)
self.root.after(0, self._log, f"↑ アップロード: {name}")
except Exception as e:
self.root.after(0, self._log, f"エラー: {name} - {e}")
self.root.after(0, self.progress.stop)
self.root.after(0, self._refresh_remote)
def _download(self):
if not self._connected:
messagebox.showwarning("警告", "先に接続してください")
return
sel = self.remote_tree.selection()
if not sel:
messagebox.showwarning("警告", "リモートファイルを選択してください")
return
files = [s for s in sel if s != "__up__" and
self.remote_tree.set(s, "icon") == "📄"]
if not files:
return
self.progress.start(10)
threading.Thread(target=self._do_download,
args=(files,), daemon=True).start()
def _do_download(self, files):
for name in files:
local_path = os.path.join(self._current_local, name)
try:
with open(local_path, "wb") as f:
self._ftp.retrbinary(f"RETR {name}", f.write)
self.root.after(0, self._log, f"↓ ダウンロード: {name}")
except Exception as e:
self.root.after(0, self._log, f"エラー: {name} - {e}")
self.root.after(0, self.progress.stop)
self.root.after(0, self._refresh_local)
def _delete_remote(self):
if not self._connected:
return
sel = self.remote_tree.selection()
if not sel or not messagebox.askyesno("確認", "選択ファイルを削除しますか?"):
return
for name in sel:
if name == "__up__":
continue
try:
icon = self.remote_tree.set(name, "icon")
if icon == "📁":
self._ftp.rmd(name)
else:
self._ftp.delete(name)
self._log(f"削除: {name}")
except Exception as e:
self._log(f"削除エラー: {name} - {e}")
self._refresh_remote()
def _mkdir_remote(self):
if not self._connected:
return
win = tk.Toplevel(self.root)
win.title("新規フォルダ")
win.geometry("260x100")
tk.Label(win, text="フォルダ名:").pack(pady=8)
var = tk.StringVar()
ttk.Entry(win, textvariable=var, width=24).pack()
def create():
name = var.get().strip()
if name:
try:
self._ftp.mkd(self._current_remote.rstrip("/") + "/" + name)
self._log(f"フォルダ作成: {name}")
self._refresh_remote()
except Exception as e:
messagebox.showerror("エラー", str(e))
win.destroy()
ttk.Button(win, text="作成", command=create).pack(pady=6)
def _log(self, message):
now = datetime.now().strftime("%H:%M:%S")
self.log_text.config(state=tk.NORMAL)
self.log_text.insert(tk.END, f"[{now}] {message}\n")
self.log_text.see(tk.END)
self.log_text.config(state=tk.DISABLED)
def _fmt_size(self, size):
for unit in ["B", "KB", "MB", "GB"]:
if size < 1024:
return f"{size:.0f}{unit}"
size /= 1024
return f"{size:.1f}TB"
if __name__ == "__main__":
root = tk.Tk()
app = App39(root)
root.mainloop()
Entryウィジェットとイベントバインド
ttk.Entryで入力フィールドを作成します。bind('
import tkinter as tk
from tkinter import ttk, messagebox, filedialog
import ftplib
import os
import threading
from datetime import datetime
class App39:
"""FTPクライアント"""
def __init__(self, root):
self.root = root
self.root.title("FTPクライアント")
self.root.geometry("960x660")
self.root.configure(bg="#f8f9fc")
self._ftp = None
self._connected = False
self._current_remote = "/"
self._current_local = os.path.expanduser("~")
self._build_ui()
def _build_ui(self):
# ヘッダー
header = tk.Frame(self.root, bg="#283593", pady=8)
header.pack(fill=tk.X)
tk.Label(header, text="📡 FTPクライアント",
font=("Noto Sans JP", 13, "bold"),
bg="#283593", fg="white").pack(side=tk.LEFT, padx=12)
# 接続パネル
conn_f = ttk.LabelFrame(self.root, text="サーバー接続", padding=8)
conn_f.pack(fill=tk.X, padx=8, pady=6)
lbl_s = {"bg": conn_f.cget("background"), "font": ("Arial", 9)}
row1 = tk.Frame(conn_f, bg=conn_f.cget("background"))
row1.pack(fill=tk.X)
for lbl, attr, width, show in [
("ホスト:", "host_var", 22, ""),
("ポート:", "port_var", 6, ""),
("ユーザー:", "user_var", 14, ""),
("パスワード:", "pass_var", 14, "*"),
]:
tk.Label(row1, text=lbl, **lbl_s).pack(side=tk.LEFT)
var = tk.StringVar()
if lbl == "ポート:":
var.set("21")
setattr(self, attr, var)
entry = ttk.Entry(row1, textvariable=var, width=width, show=show)
entry.pack(side=tk.LEFT, padx=4)
self.connect_btn = ttk.Button(row1, text="🔌 接続",
command=self._toggle_connect)
self.connect_btn.pack(side=tk.LEFT, padx=8)
self.conn_status_var = tk.StringVar(value="未接続")
tk.Label(row1, textvariable=self.conn_status_var,
**lbl_s, fg="#c62828").pack(side=tk.LEFT, padx=8)
# パッシブモード
self.passive_var = tk.BooleanVar(value=True)
ttk.Checkbutton(row1, text="パッシブモード",
variable=self.passive_var).pack(side=tk.LEFT)
# メインエリア
main_paned = ttk.PanedWindow(self.root, orient=tk.HORIZONTAL)
main_paned.pack(fill=tk.BOTH, expand=True, padx=8, pady=4)
# 左: ローカル
local_f = ttk.LabelFrame(main_paned, text="ローカル", padding=4)
main_paned.add(local_f, weight=1)
self._build_local_panel(local_f)
# 中央: 転送ボタン
mid_f = tk.Frame(main_paned, bg="#f8f9fc", width=80)
main_paned.add(mid_f, weight=0)
self._build_transfer_buttons(mid_f)
# 右: リモート
remote_f = ttk.LabelFrame(main_paned, text="リモート", padding=4)
main_paned.add(remote_f, weight=1)
self._build_remote_panel(remote_f)
# ログ
log_f = ttk.LabelFrame(self.root, text="転送ログ", padding=4)
log_f.pack(fill=tk.X, padx=8, pady=4)
self.log_text = tk.Text(log_f, height=5, bg="#0d1117", fg="#c9d1d9",
font=("Courier New", 9), state=tk.DISABLED)
self.log_text.pack(fill=tk.X)
# プログレス
self.progress = ttk.Progressbar(self.root, mode="indeterminate")
self.progress.pack(fill=tk.X, padx=8, pady=2)
self.status_var = tk.StringVar(value="接続待機中")
tk.Label(self.root, textvariable=self.status_var,
bg="#dde", font=("Arial", 9), anchor="w", padx=8
).pack(fill=tk.X, side=tk.BOTTOM)
self._refresh_local()
def _build_local_panel(self, parent):
addr_f = tk.Frame(parent, bg=parent.cget("background"))
addr_f.pack(fill=tk.X, pady=2)
self.local_path_var = tk.StringVar(value=self._current_local)
ttk.Entry(addr_f, textvariable=self.local_path_var,
width=28).pack(side=tk.LEFT, fill=tk.X, expand=True)
ttk.Button(addr_f, text="📂",
command=lambda: (
self.local_path_var.set(
filedialog.askdirectory() or self.local_path_var.get()),
self._refresh_local()
)).pack(side=tk.LEFT, padx=2)
ttk.Button(addr_f, text="🔄",
command=self._refresh_local).pack(side=tk.LEFT, padx=2)
cols = ("icon", "name", "size", "date")
self.local_tree = ttk.Treeview(parent, columns=cols,
show="headings", height=14)
for c, h, w in [("icon", "", 26), ("name", "名前", 180),
("size", "サイズ", 70), ("date", "更新日", 110)]:
self.local_tree.heading(c, text=h)
self.local_tree.column(c, width=w, minwidth=20)
sb = ttk.Scrollbar(parent, command=self.local_tree.yview)
self.local_tree.configure(yscrollcommand=sb.set)
sb.pack(side=tk.RIGHT, fill=tk.Y)
self.local_tree.pack(fill=tk.BOTH, expand=True)
self.local_tree.bind("<Double-1>", self._local_navigate)
def _build_remote_panel(self, parent):
addr_f = tk.Frame(parent, bg=parent.cget("background"))
addr_f.pack(fill=tk.X, pady=2)
self.remote_path_var = tk.StringVar(value="/")
ttk.Entry(addr_f, textvariable=self.remote_path_var,
width=28).pack(side=tk.LEFT, fill=tk.X, expand=True)
ttk.Button(addr_f, text="移動",
command=lambda: self._remote_navigate_to(
self.remote_path_var.get())
).pack(side=tk.LEFT, padx=2)
ttk.Button(addr_f, text="🔄",
command=self._refresh_remote).pack(side=tk.LEFT, padx=2)
cols = ("icon", "name", "size", "date")
self.remote_tree = ttk.Treeview(parent, columns=cols,
show="headings", height=14)
for c, h, w in [("icon", "", 26), ("name", "名前", 180),
("size", "サイズ", 70), ("date", "更新日", 110)]:
self.remote_tree.heading(c, text=h)
self.remote_tree.column(c, width=w, minwidth=20)
sb = ttk.Scrollbar(parent, command=self.remote_tree.yview)
self.remote_tree.configure(yscrollcommand=sb.set)
sb.pack(side=tk.RIGHT, fill=tk.Y)
self.remote_tree.pack(fill=tk.BOTH, expand=True)
self.remote_tree.bind("<Double-1>", self._remote_navigate)
def _build_transfer_buttons(self, parent):
tk.Frame(parent, bg="#f8f9fc").pack(expand=True, fill=tk.BOTH)
for text, cmd in [("→\nアップロード", self._upload),
("←\nダウンロード", self._download),
("🗑\n削除", self._delete_remote),
("📁\n新フォルダ", self._mkdir_remote)]:
tk.Button(parent, text=text, command=cmd,
bg="#e3f2fd", fg="#0d47a1", relief=tk.FLAT,
font=("Arial", 8), width=8, pady=6,
activebackground="#bbdefb").pack(pady=4)
tk.Frame(parent, bg="#f8f9fc").pack(expand=True, fill=tk.BOTH)
# ── ローカルパネル ────────────────────────────────────────────
def _refresh_local(self):
path = self.local_path_var.get().strip()
if not os.path.isdir(path):
path = os.path.expanduser("~")
self.local_path_var.set(path)
self._current_local = path
self.local_tree.delete(*self.local_tree.get_children())
# 親フォルダ
parent = os.path.dirname(path)
if parent != path:
self.local_tree.insert("", "end", iid="__up__",
values=("📁", "..", "", ""))
try:
entries = sorted(os.scandir(path),
key=lambda e: (not e.is_dir(), e.name.lower()))
for entry in entries:
try:
stat = entry.stat()
icon = "📁" if entry.is_dir() else "📄"
size = self._fmt_size(stat.st_size) if not entry.is_dir() else ""
date = datetime.fromtimestamp(
stat.st_mtime).strftime("%Y/%m/%d")
self.local_tree.insert("", "end", iid=entry.path,
values=(icon, entry.name, size, date))
except Exception:
pass
except PermissionError:
pass
def _local_navigate(self, event):
sel = self.local_tree.selection()
if not sel:
return
iid = sel[0]
if iid == "__up__":
parent = os.path.dirname(self._current_local)
self.local_path_var.set(parent)
self._refresh_local()
elif os.path.isdir(iid):
self.local_path_var.set(iid)
self._refresh_local()
# ── 接続 ─────────────────────────────────────────────────────
def _toggle_connect(self):
if self._connected:
self._disconnect()
else:
self._connect()
def _connect(self):
host = self.host_var.get().strip()
if not host:
messagebox.showwarning("警告", "ホスト名を入力してください")
return
self.connect_btn.config(state=tk.DISABLED)
self.progress.start(10)
threading.Thread(target=self._do_connect, daemon=True).start()
def _do_connect(self):
host = self.host_var.get().strip()
port = int(self.port_var.get() or 21)
user = self.user_var.get().strip() or "anonymous"
passwd = self.pass_var.get()
passive = self.passive_var.get()
try:
ftp = ftplib.FTP()
ftp.connect(host, port, timeout=15)
ftp.login(user, passwd)
ftp.set_pasv(passive)
self._ftp = ftp
self._connected = True
self._current_remote = ftp.pwd()
self.root.after(0, self._on_connected)
except Exception as e:
self.root.after(0, self._on_connect_error, str(e))
def _on_connected(self):
self.progress.stop()
self.connect_btn.config(state=tk.NORMAL, text="🔌 切断")
self.conn_status_var.set(f"接続済み: {self.host_var.get()}")
self.remote_path_var.set(self._current_remote)
self._log(f"接続しました: {self.host_var.get()}")
self._refresh_remote()
def _on_connect_error(self, msg):
self.progress.stop()
self.connect_btn.config(state=tk.NORMAL)
self.conn_status_var.set("接続失敗")
messagebox.showerror("接続エラー", msg)
def _disconnect(self):
if self._ftp:
try:
self._ftp.quit()
except Exception:
pass
self._ftp = None
self._connected = False
self.connect_btn.config(text="🔌 接続")
self.conn_status_var.set("未接続")
self.remote_tree.delete(*self.remote_tree.get_children())
self._log("切断しました")
# ── リモートパネル ────────────────────────────────────────────
def _refresh_remote(self):
if not self._connected:
return
threading.Thread(target=self._do_refresh_remote, daemon=True).start()
def _do_refresh_remote(self):
try:
items = []
self._ftp.cwd(self._current_remote)
self._ftp.retrlines("LIST", lambda line: items.append(line))
self.root.after(0, self._show_remote_list, items)
except Exception as e:
self.root.after(0, self._log, f"エラー: {e}")
def _show_remote_list(self, items):
self.remote_tree.delete(*self.remote_tree.get_children())
parent_path = os.path.dirname(self._current_remote.rstrip("/"))
if parent_path and parent_path != self._current_remote:
self.remote_tree.insert("", "end", iid="__up__",
values=("📁", "..", "", ""))
for line in items:
parts = line.split()
if len(parts) < 9:
continue
perms = parts[0]
size = parts[4]
name = " ".join(parts[8:])
date = f"{parts[5]} {parts[6]} {parts[7]}"
is_dir = perms.startswith("d")
icon = "📁" if is_dir else "📄"
self.remote_tree.insert("", "end",
iid=name,
values=(icon, name,
self._fmt_size(int(size)) if not is_dir else "",
date))
self.remote_path_var.set(self._current_remote)
def _remote_navigate(self, event):
sel = self.remote_tree.selection()
if not sel:
return
name = sel[0]
if name == "__up__":
parent = os.path.dirname(self._current_remote.rstrip("/"))
self._remote_navigate_to(parent or "/")
else:
icon = self.remote_tree.set(name, "icon")
if icon == "📁":
path = self._current_remote.rstrip("/") + "/" + name
self._remote_navigate_to(path)
def _remote_navigate_to(self, path):
if not self._connected:
return
self._current_remote = path
self._refresh_remote()
# ── 転送操作 ─────────────────────────────────────────────────
def _upload(self):
if not self._connected:
messagebox.showwarning("警告", "先に接続してください")
return
sel = self.local_tree.selection()
if not sel:
messagebox.showwarning("警告", "ローカルファイルを選択してください")
return
paths = [s for s in sel if s != "__up__" and os.path.isfile(s)]
if not paths:
return
self.progress.start(10)
threading.Thread(target=self._do_upload,
args=(paths,), daemon=True).start()
def _do_upload(self, paths):
for local_path in paths:
name = os.path.basename(local_path)
try:
with open(local_path, "rb") as f:
remote_path = self._current_remote.rstrip("/") + "/" + name
self._ftp.storbinary(f"STOR {name}", f)
self.root.after(0, self._log, f"↑ アップロード: {name}")
except Exception as e:
self.root.after(0, self._log, f"エラー: {name} - {e}")
self.root.after(0, self.progress.stop)
self.root.after(0, self._refresh_remote)
def _download(self):
if not self._connected:
messagebox.showwarning("警告", "先に接続してください")
return
sel = self.remote_tree.selection()
if not sel:
messagebox.showwarning("警告", "リモートファイルを選択してください")
return
files = [s for s in sel if s != "__up__" and
self.remote_tree.set(s, "icon") == "📄"]
if not files:
return
self.progress.start(10)
threading.Thread(target=self._do_download,
args=(files,), daemon=True).start()
def _do_download(self, files):
for name in files:
local_path = os.path.join(self._current_local, name)
try:
with open(local_path, "wb") as f:
self._ftp.retrbinary(f"RETR {name}", f.write)
self.root.after(0, self._log, f"↓ ダウンロード: {name}")
except Exception as e:
self.root.after(0, self._log, f"エラー: {name} - {e}")
self.root.after(0, self.progress.stop)
self.root.after(0, self._refresh_local)
def _delete_remote(self):
if not self._connected:
return
sel = self.remote_tree.selection()
if not sel or not messagebox.askyesno("確認", "選択ファイルを削除しますか?"):
return
for name in sel:
if name == "__up__":
continue
try:
icon = self.remote_tree.set(name, "icon")
if icon == "📁":
self._ftp.rmd(name)
else:
self._ftp.delete(name)
self._log(f"削除: {name}")
except Exception as e:
self._log(f"削除エラー: {name} - {e}")
self._refresh_remote()
def _mkdir_remote(self):
if not self._connected:
return
win = tk.Toplevel(self.root)
win.title("新規フォルダ")
win.geometry("260x100")
tk.Label(win, text="フォルダ名:").pack(pady=8)
var = tk.StringVar()
ttk.Entry(win, textvariable=var, width=24).pack()
def create():
name = var.get().strip()
if name:
try:
self._ftp.mkd(self._current_remote.rstrip("/") + "/" + name)
self._log(f"フォルダ作成: {name}")
self._refresh_remote()
except Exception as e:
messagebox.showerror("エラー", str(e))
win.destroy()
ttk.Button(win, text="作成", command=create).pack(pady=6)
def _log(self, message):
now = datetime.now().strftime("%H:%M:%S")
self.log_text.config(state=tk.NORMAL)
self.log_text.insert(tk.END, f"[{now}] {message}\n")
self.log_text.see(tk.END)
self.log_text.config(state=tk.DISABLED)
def _fmt_size(self, size):
for unit in ["B", "KB", "MB", "GB"]:
if size < 1024:
return f"{size:.0f}{unit}"
size /= 1024
return f"{size:.1f}TB"
if __name__ == "__main__":
root = tk.Tk()
app = App39(root)
root.mainloop()
Textウィジェットでの結果表示
結果表示にはtk.Textウィジェットを使います。state=tk.DISABLEDでユーザーが直接編集できないようにし、表示前にNORMALに切り替えてからinsert()で内容を更新します。
import tkinter as tk
from tkinter import ttk, messagebox, filedialog
import ftplib
import os
import threading
from datetime import datetime
class App39:
"""FTPクライアント"""
def __init__(self, root):
self.root = root
self.root.title("FTPクライアント")
self.root.geometry("960x660")
self.root.configure(bg="#f8f9fc")
self._ftp = None
self._connected = False
self._current_remote = "/"
self._current_local = os.path.expanduser("~")
self._build_ui()
def _build_ui(self):
# ヘッダー
header = tk.Frame(self.root, bg="#283593", pady=8)
header.pack(fill=tk.X)
tk.Label(header, text="📡 FTPクライアント",
font=("Noto Sans JP", 13, "bold"),
bg="#283593", fg="white").pack(side=tk.LEFT, padx=12)
# 接続パネル
conn_f = ttk.LabelFrame(self.root, text="サーバー接続", padding=8)
conn_f.pack(fill=tk.X, padx=8, pady=6)
lbl_s = {"bg": conn_f.cget("background"), "font": ("Arial", 9)}
row1 = tk.Frame(conn_f, bg=conn_f.cget("background"))
row1.pack(fill=tk.X)
for lbl, attr, width, show in [
("ホスト:", "host_var", 22, ""),
("ポート:", "port_var", 6, ""),
("ユーザー:", "user_var", 14, ""),
("パスワード:", "pass_var", 14, "*"),
]:
tk.Label(row1, text=lbl, **lbl_s).pack(side=tk.LEFT)
var = tk.StringVar()
if lbl == "ポート:":
var.set("21")
setattr(self, attr, var)
entry = ttk.Entry(row1, textvariable=var, width=width, show=show)
entry.pack(side=tk.LEFT, padx=4)
self.connect_btn = ttk.Button(row1, text="🔌 接続",
command=self._toggle_connect)
self.connect_btn.pack(side=tk.LEFT, padx=8)
self.conn_status_var = tk.StringVar(value="未接続")
tk.Label(row1, textvariable=self.conn_status_var,
**lbl_s, fg="#c62828").pack(side=tk.LEFT, padx=8)
# パッシブモード
self.passive_var = tk.BooleanVar(value=True)
ttk.Checkbutton(row1, text="パッシブモード",
variable=self.passive_var).pack(side=tk.LEFT)
# メインエリア
main_paned = ttk.PanedWindow(self.root, orient=tk.HORIZONTAL)
main_paned.pack(fill=tk.BOTH, expand=True, padx=8, pady=4)
# 左: ローカル
local_f = ttk.LabelFrame(main_paned, text="ローカル", padding=4)
main_paned.add(local_f, weight=1)
self._build_local_panel(local_f)
# 中央: 転送ボタン
mid_f = tk.Frame(main_paned, bg="#f8f9fc", width=80)
main_paned.add(mid_f, weight=0)
self._build_transfer_buttons(mid_f)
# 右: リモート
remote_f = ttk.LabelFrame(main_paned, text="リモート", padding=4)
main_paned.add(remote_f, weight=1)
self._build_remote_panel(remote_f)
# ログ
log_f = ttk.LabelFrame(self.root, text="転送ログ", padding=4)
log_f.pack(fill=tk.X, padx=8, pady=4)
self.log_text = tk.Text(log_f, height=5, bg="#0d1117", fg="#c9d1d9",
font=("Courier New", 9), state=tk.DISABLED)
self.log_text.pack(fill=tk.X)
# プログレス
self.progress = ttk.Progressbar(self.root, mode="indeterminate")
self.progress.pack(fill=tk.X, padx=8, pady=2)
self.status_var = tk.StringVar(value="接続待機中")
tk.Label(self.root, textvariable=self.status_var,
bg="#dde", font=("Arial", 9), anchor="w", padx=8
).pack(fill=tk.X, side=tk.BOTTOM)
self._refresh_local()
def _build_local_panel(self, parent):
addr_f = tk.Frame(parent, bg=parent.cget("background"))
addr_f.pack(fill=tk.X, pady=2)
self.local_path_var = tk.StringVar(value=self._current_local)
ttk.Entry(addr_f, textvariable=self.local_path_var,
width=28).pack(side=tk.LEFT, fill=tk.X, expand=True)
ttk.Button(addr_f, text="📂",
command=lambda: (
self.local_path_var.set(
filedialog.askdirectory() or self.local_path_var.get()),
self._refresh_local()
)).pack(side=tk.LEFT, padx=2)
ttk.Button(addr_f, text="🔄",
command=self._refresh_local).pack(side=tk.LEFT, padx=2)
cols = ("icon", "name", "size", "date")
self.local_tree = ttk.Treeview(parent, columns=cols,
show="headings", height=14)
for c, h, w in [("icon", "", 26), ("name", "名前", 180),
("size", "サイズ", 70), ("date", "更新日", 110)]:
self.local_tree.heading(c, text=h)
self.local_tree.column(c, width=w, minwidth=20)
sb = ttk.Scrollbar(parent, command=self.local_tree.yview)
self.local_tree.configure(yscrollcommand=sb.set)
sb.pack(side=tk.RIGHT, fill=tk.Y)
self.local_tree.pack(fill=tk.BOTH, expand=True)
self.local_tree.bind("<Double-1>", self._local_navigate)
def _build_remote_panel(self, parent):
addr_f = tk.Frame(parent, bg=parent.cget("background"))
addr_f.pack(fill=tk.X, pady=2)
self.remote_path_var = tk.StringVar(value="/")
ttk.Entry(addr_f, textvariable=self.remote_path_var,
width=28).pack(side=tk.LEFT, fill=tk.X, expand=True)
ttk.Button(addr_f, text="移動",
command=lambda: self._remote_navigate_to(
self.remote_path_var.get())
).pack(side=tk.LEFT, padx=2)
ttk.Button(addr_f, text="🔄",
command=self._refresh_remote).pack(side=tk.LEFT, padx=2)
cols = ("icon", "name", "size", "date")
self.remote_tree = ttk.Treeview(parent, columns=cols,
show="headings", height=14)
for c, h, w in [("icon", "", 26), ("name", "名前", 180),
("size", "サイズ", 70), ("date", "更新日", 110)]:
self.remote_tree.heading(c, text=h)
self.remote_tree.column(c, width=w, minwidth=20)
sb = ttk.Scrollbar(parent, command=self.remote_tree.yview)
self.remote_tree.configure(yscrollcommand=sb.set)
sb.pack(side=tk.RIGHT, fill=tk.Y)
self.remote_tree.pack(fill=tk.BOTH, expand=True)
self.remote_tree.bind("<Double-1>", self._remote_navigate)
def _build_transfer_buttons(self, parent):
tk.Frame(parent, bg="#f8f9fc").pack(expand=True, fill=tk.BOTH)
for text, cmd in [("→\nアップロード", self._upload),
("←\nダウンロード", self._download),
("🗑\n削除", self._delete_remote),
("📁\n新フォルダ", self._mkdir_remote)]:
tk.Button(parent, text=text, command=cmd,
bg="#e3f2fd", fg="#0d47a1", relief=tk.FLAT,
font=("Arial", 8), width=8, pady=6,
activebackground="#bbdefb").pack(pady=4)
tk.Frame(parent, bg="#f8f9fc").pack(expand=True, fill=tk.BOTH)
# ── ローカルパネル ────────────────────────────────────────────
def _refresh_local(self):
path = self.local_path_var.get().strip()
if not os.path.isdir(path):
path = os.path.expanduser("~")
self.local_path_var.set(path)
self._current_local = path
self.local_tree.delete(*self.local_tree.get_children())
# 親フォルダ
parent = os.path.dirname(path)
if parent != path:
self.local_tree.insert("", "end", iid="__up__",
values=("📁", "..", "", ""))
try:
entries = sorted(os.scandir(path),
key=lambda e: (not e.is_dir(), e.name.lower()))
for entry in entries:
try:
stat = entry.stat()
icon = "📁" if entry.is_dir() else "📄"
size = self._fmt_size(stat.st_size) if not entry.is_dir() else ""
date = datetime.fromtimestamp(
stat.st_mtime).strftime("%Y/%m/%d")
self.local_tree.insert("", "end", iid=entry.path,
values=(icon, entry.name, size, date))
except Exception:
pass
except PermissionError:
pass
def _local_navigate(self, event):
sel = self.local_tree.selection()
if not sel:
return
iid = sel[0]
if iid == "__up__":
parent = os.path.dirname(self._current_local)
self.local_path_var.set(parent)
self._refresh_local()
elif os.path.isdir(iid):
self.local_path_var.set(iid)
self._refresh_local()
# ── 接続 ─────────────────────────────────────────────────────
def _toggle_connect(self):
if self._connected:
self._disconnect()
else:
self._connect()
def _connect(self):
host = self.host_var.get().strip()
if not host:
messagebox.showwarning("警告", "ホスト名を入力してください")
return
self.connect_btn.config(state=tk.DISABLED)
self.progress.start(10)
threading.Thread(target=self._do_connect, daemon=True).start()
def _do_connect(self):
host = self.host_var.get().strip()
port = int(self.port_var.get() or 21)
user = self.user_var.get().strip() or "anonymous"
passwd = self.pass_var.get()
passive = self.passive_var.get()
try:
ftp = ftplib.FTP()
ftp.connect(host, port, timeout=15)
ftp.login(user, passwd)
ftp.set_pasv(passive)
self._ftp = ftp
self._connected = True
self._current_remote = ftp.pwd()
self.root.after(0, self._on_connected)
except Exception as e:
self.root.after(0, self._on_connect_error, str(e))
def _on_connected(self):
self.progress.stop()
self.connect_btn.config(state=tk.NORMAL, text="🔌 切断")
self.conn_status_var.set(f"接続済み: {self.host_var.get()}")
self.remote_path_var.set(self._current_remote)
self._log(f"接続しました: {self.host_var.get()}")
self._refresh_remote()
def _on_connect_error(self, msg):
self.progress.stop()
self.connect_btn.config(state=tk.NORMAL)
self.conn_status_var.set("接続失敗")
messagebox.showerror("接続エラー", msg)
def _disconnect(self):
if self._ftp:
try:
self._ftp.quit()
except Exception:
pass
self._ftp = None
self._connected = False
self.connect_btn.config(text="🔌 接続")
self.conn_status_var.set("未接続")
self.remote_tree.delete(*self.remote_tree.get_children())
self._log("切断しました")
# ── リモートパネル ────────────────────────────────────────────
def _refresh_remote(self):
if not self._connected:
return
threading.Thread(target=self._do_refresh_remote, daemon=True).start()
def _do_refresh_remote(self):
try:
items = []
self._ftp.cwd(self._current_remote)
self._ftp.retrlines("LIST", lambda line: items.append(line))
self.root.after(0, self._show_remote_list, items)
except Exception as e:
self.root.after(0, self._log, f"エラー: {e}")
def _show_remote_list(self, items):
self.remote_tree.delete(*self.remote_tree.get_children())
parent_path = os.path.dirname(self._current_remote.rstrip("/"))
if parent_path and parent_path != self._current_remote:
self.remote_tree.insert("", "end", iid="__up__",
values=("📁", "..", "", ""))
for line in items:
parts = line.split()
if len(parts) < 9:
continue
perms = parts[0]
size = parts[4]
name = " ".join(parts[8:])
date = f"{parts[5]} {parts[6]} {parts[7]}"
is_dir = perms.startswith("d")
icon = "📁" if is_dir else "📄"
self.remote_tree.insert("", "end",
iid=name,
values=(icon, name,
self._fmt_size(int(size)) if not is_dir else "",
date))
self.remote_path_var.set(self._current_remote)
def _remote_navigate(self, event):
sel = self.remote_tree.selection()
if not sel:
return
name = sel[0]
if name == "__up__":
parent = os.path.dirname(self._current_remote.rstrip("/"))
self._remote_navigate_to(parent or "/")
else:
icon = self.remote_tree.set(name, "icon")
if icon == "📁":
path = self._current_remote.rstrip("/") + "/" + name
self._remote_navigate_to(path)
def _remote_navigate_to(self, path):
if not self._connected:
return
self._current_remote = path
self._refresh_remote()
# ── 転送操作 ─────────────────────────────────────────────────
def _upload(self):
if not self._connected:
messagebox.showwarning("警告", "先に接続してください")
return
sel = self.local_tree.selection()
if not sel:
messagebox.showwarning("警告", "ローカルファイルを選択してください")
return
paths = [s for s in sel if s != "__up__" and os.path.isfile(s)]
if not paths:
return
self.progress.start(10)
threading.Thread(target=self._do_upload,
args=(paths,), daemon=True).start()
def _do_upload(self, paths):
for local_path in paths:
name = os.path.basename(local_path)
try:
with open(local_path, "rb") as f:
remote_path = self._current_remote.rstrip("/") + "/" + name
self._ftp.storbinary(f"STOR {name}", f)
self.root.after(0, self._log, f"↑ アップロード: {name}")
except Exception as e:
self.root.after(0, self._log, f"エラー: {name} - {e}")
self.root.after(0, self.progress.stop)
self.root.after(0, self._refresh_remote)
def _download(self):
if not self._connected:
messagebox.showwarning("警告", "先に接続してください")
return
sel = self.remote_tree.selection()
if not sel:
messagebox.showwarning("警告", "リモートファイルを選択してください")
return
files = [s for s in sel if s != "__up__" and
self.remote_tree.set(s, "icon") == "📄"]
if not files:
return
self.progress.start(10)
threading.Thread(target=self._do_download,
args=(files,), daemon=True).start()
def _do_download(self, files):
for name in files:
local_path = os.path.join(self._current_local, name)
try:
with open(local_path, "wb") as f:
self._ftp.retrbinary(f"RETR {name}", f.write)
self.root.after(0, self._log, f"↓ ダウンロード: {name}")
except Exception as e:
self.root.after(0, self._log, f"エラー: {name} - {e}")
self.root.after(0, self.progress.stop)
self.root.after(0, self._refresh_local)
def _delete_remote(self):
if not self._connected:
return
sel = self.remote_tree.selection()
if not sel or not messagebox.askyesno("確認", "選択ファイルを削除しますか?"):
return
for name in sel:
if name == "__up__":
continue
try:
icon = self.remote_tree.set(name, "icon")
if icon == "📁":
self._ftp.rmd(name)
else:
self._ftp.delete(name)
self._log(f"削除: {name}")
except Exception as e:
self._log(f"削除エラー: {name} - {e}")
self._refresh_remote()
def _mkdir_remote(self):
if not self._connected:
return
win = tk.Toplevel(self.root)
win.title("新規フォルダ")
win.geometry("260x100")
tk.Label(win, text="フォルダ名:").pack(pady=8)
var = tk.StringVar()
ttk.Entry(win, textvariable=var, width=24).pack()
def create():
name = var.get().strip()
if name:
try:
self._ftp.mkd(self._current_remote.rstrip("/") + "/" + name)
self._log(f"フォルダ作成: {name}")
self._refresh_remote()
except Exception as e:
messagebox.showerror("エラー", str(e))
win.destroy()
ttk.Button(win, text="作成", command=create).pack(pady=6)
def _log(self, message):
now = datetime.now().strftime("%H:%M:%S")
self.log_text.config(state=tk.NORMAL)
self.log_text.insert(tk.END, f"[{now}] {message}\n")
self.log_text.see(tk.END)
self.log_text.config(state=tk.DISABLED)
def _fmt_size(self, size):
for unit in ["B", "KB", "MB", "GB"]:
if size < 1024:
return f"{size:.0f}{unit}"
size /= 1024
return f"{size:.1f}TB"
if __name__ == "__main__":
root = tk.Tk()
app = App39(root)
root.mainloop()
例外処理とmessagebox
try-except で ValueError と Exception を捕捉し、messagebox.showerror() でユーザーにわかりやすいエラーメッセージを表示します。入力バリデーションは必ず実装しましょう。
import tkinter as tk
from tkinter import ttk, messagebox, filedialog
import ftplib
import os
import threading
from datetime import datetime
class App39:
"""FTPクライアント"""
def __init__(self, root):
self.root = root
self.root.title("FTPクライアント")
self.root.geometry("960x660")
self.root.configure(bg="#f8f9fc")
self._ftp = None
self._connected = False
self._current_remote = "/"
self._current_local = os.path.expanduser("~")
self._build_ui()
def _build_ui(self):
# ヘッダー
header = tk.Frame(self.root, bg="#283593", pady=8)
header.pack(fill=tk.X)
tk.Label(header, text="📡 FTPクライアント",
font=("Noto Sans JP", 13, "bold"),
bg="#283593", fg="white").pack(side=tk.LEFT, padx=12)
# 接続パネル
conn_f = ttk.LabelFrame(self.root, text="サーバー接続", padding=8)
conn_f.pack(fill=tk.X, padx=8, pady=6)
lbl_s = {"bg": conn_f.cget("background"), "font": ("Arial", 9)}
row1 = tk.Frame(conn_f, bg=conn_f.cget("background"))
row1.pack(fill=tk.X)
for lbl, attr, width, show in [
("ホスト:", "host_var", 22, ""),
("ポート:", "port_var", 6, ""),
("ユーザー:", "user_var", 14, ""),
("パスワード:", "pass_var", 14, "*"),
]:
tk.Label(row1, text=lbl, **lbl_s).pack(side=tk.LEFT)
var = tk.StringVar()
if lbl == "ポート:":
var.set("21")
setattr(self, attr, var)
entry = ttk.Entry(row1, textvariable=var, width=width, show=show)
entry.pack(side=tk.LEFT, padx=4)
self.connect_btn = ttk.Button(row1, text="🔌 接続",
command=self._toggle_connect)
self.connect_btn.pack(side=tk.LEFT, padx=8)
self.conn_status_var = tk.StringVar(value="未接続")
tk.Label(row1, textvariable=self.conn_status_var,
**lbl_s, fg="#c62828").pack(side=tk.LEFT, padx=8)
# パッシブモード
self.passive_var = tk.BooleanVar(value=True)
ttk.Checkbutton(row1, text="パッシブモード",
variable=self.passive_var).pack(side=tk.LEFT)
# メインエリア
main_paned = ttk.PanedWindow(self.root, orient=tk.HORIZONTAL)
main_paned.pack(fill=tk.BOTH, expand=True, padx=8, pady=4)
# 左: ローカル
local_f = ttk.LabelFrame(main_paned, text="ローカル", padding=4)
main_paned.add(local_f, weight=1)
self._build_local_panel(local_f)
# 中央: 転送ボタン
mid_f = tk.Frame(main_paned, bg="#f8f9fc", width=80)
main_paned.add(mid_f, weight=0)
self._build_transfer_buttons(mid_f)
# 右: リモート
remote_f = ttk.LabelFrame(main_paned, text="リモート", padding=4)
main_paned.add(remote_f, weight=1)
self._build_remote_panel(remote_f)
# ログ
log_f = ttk.LabelFrame(self.root, text="転送ログ", padding=4)
log_f.pack(fill=tk.X, padx=8, pady=4)
self.log_text = tk.Text(log_f, height=5, bg="#0d1117", fg="#c9d1d9",
font=("Courier New", 9), state=tk.DISABLED)
self.log_text.pack(fill=tk.X)
# プログレス
self.progress = ttk.Progressbar(self.root, mode="indeterminate")
self.progress.pack(fill=tk.X, padx=8, pady=2)
self.status_var = tk.StringVar(value="接続待機中")
tk.Label(self.root, textvariable=self.status_var,
bg="#dde", font=("Arial", 9), anchor="w", padx=8
).pack(fill=tk.X, side=tk.BOTTOM)
self._refresh_local()
def _build_local_panel(self, parent):
addr_f = tk.Frame(parent, bg=parent.cget("background"))
addr_f.pack(fill=tk.X, pady=2)
self.local_path_var = tk.StringVar(value=self._current_local)
ttk.Entry(addr_f, textvariable=self.local_path_var,
width=28).pack(side=tk.LEFT, fill=tk.X, expand=True)
ttk.Button(addr_f, text="📂",
command=lambda: (
self.local_path_var.set(
filedialog.askdirectory() or self.local_path_var.get()),
self._refresh_local()
)).pack(side=tk.LEFT, padx=2)
ttk.Button(addr_f, text="🔄",
command=self._refresh_local).pack(side=tk.LEFT, padx=2)
cols = ("icon", "name", "size", "date")
self.local_tree = ttk.Treeview(parent, columns=cols,
show="headings", height=14)
for c, h, w in [("icon", "", 26), ("name", "名前", 180),
("size", "サイズ", 70), ("date", "更新日", 110)]:
self.local_tree.heading(c, text=h)
self.local_tree.column(c, width=w, minwidth=20)
sb = ttk.Scrollbar(parent, command=self.local_tree.yview)
self.local_tree.configure(yscrollcommand=sb.set)
sb.pack(side=tk.RIGHT, fill=tk.Y)
self.local_tree.pack(fill=tk.BOTH, expand=True)
self.local_tree.bind("<Double-1>", self._local_navigate)
def _build_remote_panel(self, parent):
addr_f = tk.Frame(parent, bg=parent.cget("background"))
addr_f.pack(fill=tk.X, pady=2)
self.remote_path_var = tk.StringVar(value="/")
ttk.Entry(addr_f, textvariable=self.remote_path_var,
width=28).pack(side=tk.LEFT, fill=tk.X, expand=True)
ttk.Button(addr_f, text="移動",
command=lambda: self._remote_navigate_to(
self.remote_path_var.get())
).pack(side=tk.LEFT, padx=2)
ttk.Button(addr_f, text="🔄",
command=self._refresh_remote).pack(side=tk.LEFT, padx=2)
cols = ("icon", "name", "size", "date")
self.remote_tree = ttk.Treeview(parent, columns=cols,
show="headings", height=14)
for c, h, w in [("icon", "", 26), ("name", "名前", 180),
("size", "サイズ", 70), ("date", "更新日", 110)]:
self.remote_tree.heading(c, text=h)
self.remote_tree.column(c, width=w, minwidth=20)
sb = ttk.Scrollbar(parent, command=self.remote_tree.yview)
self.remote_tree.configure(yscrollcommand=sb.set)
sb.pack(side=tk.RIGHT, fill=tk.Y)
self.remote_tree.pack(fill=tk.BOTH, expand=True)
self.remote_tree.bind("<Double-1>", self._remote_navigate)
def _build_transfer_buttons(self, parent):
tk.Frame(parent, bg="#f8f9fc").pack(expand=True, fill=tk.BOTH)
for text, cmd in [("→\nアップロード", self._upload),
("←\nダウンロード", self._download),
("🗑\n削除", self._delete_remote),
("📁\n新フォルダ", self._mkdir_remote)]:
tk.Button(parent, text=text, command=cmd,
bg="#e3f2fd", fg="#0d47a1", relief=tk.FLAT,
font=("Arial", 8), width=8, pady=6,
activebackground="#bbdefb").pack(pady=4)
tk.Frame(parent, bg="#f8f9fc").pack(expand=True, fill=tk.BOTH)
# ── ローカルパネル ────────────────────────────────────────────
def _refresh_local(self):
path = self.local_path_var.get().strip()
if not os.path.isdir(path):
path = os.path.expanduser("~")
self.local_path_var.set(path)
self._current_local = path
self.local_tree.delete(*self.local_tree.get_children())
# 親フォルダ
parent = os.path.dirname(path)
if parent != path:
self.local_tree.insert("", "end", iid="__up__",
values=("📁", "..", "", ""))
try:
entries = sorted(os.scandir(path),
key=lambda e: (not e.is_dir(), e.name.lower()))
for entry in entries:
try:
stat = entry.stat()
icon = "📁" if entry.is_dir() else "📄"
size = self._fmt_size(stat.st_size) if not entry.is_dir() else ""
date = datetime.fromtimestamp(
stat.st_mtime).strftime("%Y/%m/%d")
self.local_tree.insert("", "end", iid=entry.path,
values=(icon, entry.name, size, date))
except Exception:
pass
except PermissionError:
pass
def _local_navigate(self, event):
sel = self.local_tree.selection()
if not sel:
return
iid = sel[0]
if iid == "__up__":
parent = os.path.dirname(self._current_local)
self.local_path_var.set(parent)
self._refresh_local()
elif os.path.isdir(iid):
self.local_path_var.set(iid)
self._refresh_local()
# ── 接続 ─────────────────────────────────────────────────────
def _toggle_connect(self):
if self._connected:
self._disconnect()
else:
self._connect()
def _connect(self):
host = self.host_var.get().strip()
if not host:
messagebox.showwarning("警告", "ホスト名を入力してください")
return
self.connect_btn.config(state=tk.DISABLED)
self.progress.start(10)
threading.Thread(target=self._do_connect, daemon=True).start()
def _do_connect(self):
host = self.host_var.get().strip()
port = int(self.port_var.get() or 21)
user = self.user_var.get().strip() or "anonymous"
passwd = self.pass_var.get()
passive = self.passive_var.get()
try:
ftp = ftplib.FTP()
ftp.connect(host, port, timeout=15)
ftp.login(user, passwd)
ftp.set_pasv(passive)
self._ftp = ftp
self._connected = True
self._current_remote = ftp.pwd()
self.root.after(0, self._on_connected)
except Exception as e:
self.root.after(0, self._on_connect_error, str(e))
def _on_connected(self):
self.progress.stop()
self.connect_btn.config(state=tk.NORMAL, text="🔌 切断")
self.conn_status_var.set(f"接続済み: {self.host_var.get()}")
self.remote_path_var.set(self._current_remote)
self._log(f"接続しました: {self.host_var.get()}")
self._refresh_remote()
def _on_connect_error(self, msg):
self.progress.stop()
self.connect_btn.config(state=tk.NORMAL)
self.conn_status_var.set("接続失敗")
messagebox.showerror("接続エラー", msg)
def _disconnect(self):
if self._ftp:
try:
self._ftp.quit()
except Exception:
pass
self._ftp = None
self._connected = False
self.connect_btn.config(text="🔌 接続")
self.conn_status_var.set("未接続")
self.remote_tree.delete(*self.remote_tree.get_children())
self._log("切断しました")
# ── リモートパネル ────────────────────────────────────────────
def _refresh_remote(self):
if not self._connected:
return
threading.Thread(target=self._do_refresh_remote, daemon=True).start()
def _do_refresh_remote(self):
try:
items = []
self._ftp.cwd(self._current_remote)
self._ftp.retrlines("LIST", lambda line: items.append(line))
self.root.after(0, self._show_remote_list, items)
except Exception as e:
self.root.after(0, self._log, f"エラー: {e}")
def _show_remote_list(self, items):
self.remote_tree.delete(*self.remote_tree.get_children())
parent_path = os.path.dirname(self._current_remote.rstrip("/"))
if parent_path and parent_path != self._current_remote:
self.remote_tree.insert("", "end", iid="__up__",
values=("📁", "..", "", ""))
for line in items:
parts = line.split()
if len(parts) < 9:
continue
perms = parts[0]
size = parts[4]
name = " ".join(parts[8:])
date = f"{parts[5]} {parts[6]} {parts[7]}"
is_dir = perms.startswith("d")
icon = "📁" if is_dir else "📄"
self.remote_tree.insert("", "end",
iid=name,
values=(icon, name,
self._fmt_size(int(size)) if not is_dir else "",
date))
self.remote_path_var.set(self._current_remote)
def _remote_navigate(self, event):
sel = self.remote_tree.selection()
if not sel:
return
name = sel[0]
if name == "__up__":
parent = os.path.dirname(self._current_remote.rstrip("/"))
self._remote_navigate_to(parent or "/")
else:
icon = self.remote_tree.set(name, "icon")
if icon == "📁":
path = self._current_remote.rstrip("/") + "/" + name
self._remote_navigate_to(path)
def _remote_navigate_to(self, path):
if not self._connected:
return
self._current_remote = path
self._refresh_remote()
# ── 転送操作 ─────────────────────────────────────────────────
def _upload(self):
if not self._connected:
messagebox.showwarning("警告", "先に接続してください")
return
sel = self.local_tree.selection()
if not sel:
messagebox.showwarning("警告", "ローカルファイルを選択してください")
return
paths = [s for s in sel if s != "__up__" and os.path.isfile(s)]
if not paths:
return
self.progress.start(10)
threading.Thread(target=self._do_upload,
args=(paths,), daemon=True).start()
def _do_upload(self, paths):
for local_path in paths:
name = os.path.basename(local_path)
try:
with open(local_path, "rb") as f:
remote_path = self._current_remote.rstrip("/") + "/" + name
self._ftp.storbinary(f"STOR {name}", f)
self.root.after(0, self._log, f"↑ アップロード: {name}")
except Exception as e:
self.root.after(0, self._log, f"エラー: {name} - {e}")
self.root.after(0, self.progress.stop)
self.root.after(0, self._refresh_remote)
def _download(self):
if not self._connected:
messagebox.showwarning("警告", "先に接続してください")
return
sel = self.remote_tree.selection()
if not sel:
messagebox.showwarning("警告", "リモートファイルを選択してください")
return
files = [s for s in sel if s != "__up__" and
self.remote_tree.set(s, "icon") == "📄"]
if not files:
return
self.progress.start(10)
threading.Thread(target=self._do_download,
args=(files,), daemon=True).start()
def _do_download(self, files):
for name in files:
local_path = os.path.join(self._current_local, name)
try:
with open(local_path, "wb") as f:
self._ftp.retrbinary(f"RETR {name}", f.write)
self.root.after(0, self._log, f"↓ ダウンロード: {name}")
except Exception as e:
self.root.after(0, self._log, f"エラー: {name} - {e}")
self.root.after(0, self.progress.stop)
self.root.after(0, self._refresh_local)
def _delete_remote(self):
if not self._connected:
return
sel = self.remote_tree.selection()
if not sel or not messagebox.askyesno("確認", "選択ファイルを削除しますか?"):
return
for name in sel:
if name == "__up__":
continue
try:
icon = self.remote_tree.set(name, "icon")
if icon == "📁":
self._ftp.rmd(name)
else:
self._ftp.delete(name)
self._log(f"削除: {name}")
except Exception as e:
self._log(f"削除エラー: {name} - {e}")
self._refresh_remote()
def _mkdir_remote(self):
if not self._connected:
return
win = tk.Toplevel(self.root)
win.title("新規フォルダ")
win.geometry("260x100")
tk.Label(win, text="フォルダ名:").pack(pady=8)
var = tk.StringVar()
ttk.Entry(win, textvariable=var, width=24).pack()
def create():
name = var.get().strip()
if name:
try:
self._ftp.mkd(self._current_remote.rstrip("/") + "/" + name)
self._log(f"フォルダ作成: {name}")
self._refresh_remote()
except Exception as e:
messagebox.showerror("エラー", str(e))
win.destroy()
ttk.Button(win, text="作成", command=create).pack(pady=6)
def _log(self, message):
now = datetime.now().strftime("%H:%M:%S")
self.log_text.config(state=tk.NORMAL)
self.log_text.insert(tk.END, f"[{now}] {message}\n")
self.log_text.see(tk.END)
self.log_text.config(state=tk.DISABLED)
def _fmt_size(self, size):
for unit in ["B", "KB", "MB", "GB"]:
if size < 1024:
return f"{size:.0f}{unit}"
size /= 1024
return f"{size:.1f}TB"
if __name__ == "__main__":
root = tk.Tk()
app = App39(root)
root.mainloop()
6. ステップバイステップガイド
このアプリをゼロから自分で作る手順を解説します。コードをコピーするだけでなく、実際に手順を追って自分で書いてみましょう。
-
1ファイルを作成する
新しいファイルを作成して app39.py と保存します。
-
2クラスの骨格を作る
App39クラスを定義し、__init__とmainloop()の最小構成を作ります。
-
3タイトルバーを作る
Frameを使ってカラーバー付きのタイトルエリアを作ります。
-
4入力フォームを実装する
LabelFrameとEntryウィジェットで入力エリアを作ります。
-
5処理ロジックを実装する
_calculate()メソッドに計算・処理ロジックを実装します。
-
6結果表示を実装する
TextウィジェットかLabelに結果を表示する_show_result()を実装します。
-
7エラー処理を追加する
try-exceptとmessageboxでエラーハンドリングを追加します。
7. カスタマイズアイデア
基本機能を習得したら、以下のカスタマイズに挑戦してみましょう。少しずつ機能を追加することで、Pythonのスキルが飛躍的に向上します。
💡 ダークモードを追加する
bg色・fg色を辞書で管理し、ボタン1つでダークモード・ライトモードを切り替えられるようにしましょう。
💡 データのエクスポート機能
計算結果をCSV・TXTファイルに保存するエクスポート機能を追加しましょう。filedialog.asksaveasfilename()でファイル保存ダイアログが使えます。
💡 入力履歴機能
以前の入力値を覚えておいてComboboxのドロップダウンで再選択できる履歴機能を追加しましょう。
8. よくある問題と解決法
❌ 日本語フォントが表示されない
原因：システムに日本語フォントが見つからない場合があります。
解決法：font引数を省略するかシステムに合ったフォントを指定してください。
❌ ウィンドウのサイズが変更できない
原因：resizable(False, False)が設定されています。
解決法：resizable(True, True)に変更してください。
9. 練習問題
アプリの理解を深めるための練習問題です。難易度順に挑戦してみてください。
-
課題1：機能拡張
FTPクライアントに新しい機能を1つ追加してみましょう。どんな機能があると便利か考えてから実装してください。
-
課題2：UIの改善
色・フォント・レイアウトを変更して、より使いやすいUIにカスタマイズしてみましょう。
-
課題3：保存機能の追加
入力値や計算結果をファイルに保存する機能を追加しましょう。jsonやcsvモジュールを使います。