Adding padding to a tkinter widget only on one side

问题

How can I add padding to a tkinter window, without tkinter centering the widget? I tried:

 self.canvas_l = Label(self.master, text="choose a color:", font="helvetica 12")
 self.canvas_l.grid(row=9, column=1, sticky=S, ipady=30)

and

 self.canvas_l = Label(self.master, text="choose a color:", font="helvetica 12")
 self.canvas_l.grid(row=9, column=1, rowspan=2, sticky=S, pady=30)

I want 30px padding only on the top of the label.

回答1:

The padding options padx and pady of the grid and pack methods can take a 2-tuple that represent the left/right and top/bottom padding.

Here's an example:

import tkinter as tk

class MyApp():
    def __init__(self):
        self.root = tk.Tk()
        l1 = tk.Label(self.root, text="Hello")
        l2 = tk.Label(self.root, text="World")
        l1.grid(row=0, column=0, padx=(100, 10))
        l2.grid(row=1, column=0, padx=(10, 100)) 

app = MyApp()
app.root.mainloop()

来源：https://stackoverflow.com/questions/4174575/adding-padding-to-a-tkinter-widget-only-on-one-side