You're almost there! The reason your `Entry` widget isn't showing is because you've created it, but you haven't placed it on the window.
In Tkinter, widgets don’t appear on the screen until you use a **geometry manager** like `.pack()`, `.grid()`, or `.place()`.
Just add `.pack()` (or another layout method) after creating the widget:
```python
import tkinter as tk
root = tk.Tk()
entry = tk.Entry(root)
entry.pack() # This makes the entry visible on the window
root.mainloop()