YouTubeの「あとで見る」作品のタイトルとリンクを表示するウィンドウを生成するPythonスクリプトを書くときは、TkinterやPyQtのようなGUIライブラリを使います。以下はTkinterを使った例です：
```py
import tkinter as tk
from tkinter import ttk

root = tk.Tk()
root.title("Watch Later Videos")

# Create a treeview widget to display the video titles and links
tree = ttk.Treeview(root)
tree["columns"] = ("title", "link")
tree.heading("title", text="Title")
tree.heading("link", text="Link")

# Add your video titles and links to the treeview
# Replace the example data with your actual "Watch Later" videos
tree.insert("", 0, text="Video 1", values=("How to Code in Python", "https://www.youtube.com/watch?v=dQw4w9WgXcQ"))
tree.insert("", 1, text="Video 2", values=("Top 10 Best TV Shows of All Time", "https://www.youtube.com/watch?v=oHg5SJYRHA0"))

tree.pack(fill=tk.BOTH, expand=True)

root.mainloop()
```
このスクリプトのウィジェットによって作成されたツリービューウィジェットの "タイトル "と "リンク "の列は、2つの別々の列で表示されます。デモの都合上、動画の名前とURLはスクリプトにハードコードされていますが、実際の「あとで見る」作品のタイトルと入れ替えてもかまいません。
Use a GUI library like Tkinter or PyQt when writing a Python script that generates a window that shows the titles and links to your YouTube "Watch Later" films. Here's an illustration using Tkinter:
```py
import tkinter as tk
from tkinter import ttk

root = tk.Tk()
root.title("Watch Later Videos")

# Create a treeview widget to display the video titles and links
tree = ttk.Treeview(root)
tree["columns"] = ("title", "link")
tree.heading("title", text="Title")
tree.heading("link", text="Link")

# Add your video titles and links to the treeview
# Replace the example data with your actual "Watch Later" videos
tree.insert("", 0, text="Video 1", values=("How to Code in Python", "https://www.youtube.com/watch?v=dQw4w9WgXcQ"))
tree.insert("", 1, text="Video 2", values=("Top 10 Best TV Shows of All Time", "https://www.youtube.com/watch?v=oHg5SJYRHA0"))

tree.pack(fill=tk.BOTH, expand=True)

root.mainloop()
```
The "Title" and "Link" columns of a treeview widget created by this script's widget are shown in two separate columns. For demonstration reasons, the video names and URLs are hardcoded in the script; however, you may swap them out with the titles of your actual "See Later" films.