Try running the following program. You just have to be sure your window has the focus when you hit Return--to ensure that it does, first click the button a couple of times until you see some output, then without clicking anywhere else hit Return.
import tkinter as tk
root = tk.Tk()
root.geometry("300x200")
def func(event):
print("You hit return.")
root.bind('<Return>', func)
def onclick():
print("You clicked the button")
button = tk.Button(root, text="click me", command=onclick)
button.pack()
root.mainloop()
Then you just have tweak things a little when making both the button click and hitting Return call the same function--because the command function needs to be a function that takes no arguments, whereas the bind function needs to be a function that takes one argument(the event object):
import tkinter as tk
root = tk.Tk()
root.geometry("300x200")
def func(event):
print("You hit return.")
def onclick(event=None):
print("You clicked the button")
root.bind('<Return>', onclick)
button = tk.Button(root, text="click me", command=onclick)
button.pack()
root.mainloop()
Or, you can just forgo using the button's command argument and instead use bind() to attach the onclick function to the button, which means the function needs to take one argument--just like with Return:
import tkinter as tk
root = tk.Tk()
root.geometry("300x200")
def func(event):
print("You hit return.")
def onclick(event):
print("You clicked the button")
root.bind('<Return>', onclick)
button = tk.Button(root, text="click me")
button.bind('<Button-1>', onclick)
button.pack()
root.mainloop()
Here it is in a class setting:
import tkinter as tk
class Application(tk.Frame):
def __init__(self):
self.root = tk.Tk()
self.root.geometry("300x200")
tk.Frame.__init__(self, self.root)
self.create_widgets()
def create_widgets(self):
self.root.bind('<Return>', self.parse)
self.grid()
self.submit = tk.Button(self, text="Submit")
self.submit.bind('<Button-1>', self.parse)
self.submit.grid()
def parse(self, event):
print("You clicked?")
def start(self):
self.root.mainloop()
Application().start()