Hi
System: Linux,
Python Version: 3.6.7
I am trying to learn how to bind to a widget, and process the contents
of the bound widget
here is my attempt at code:
#! /usr/bin/python3
from tkinter import *
import datetime
def NewAge(start):
print(start)
futureAge = start + 5
calculated.delete(0,END)
calculated.insert(0,futureAge)
master=Tk()
Label(master, text='present age').grid(row=0, column=0)
Label(master, text='age in 5 years').grid(row=1, column=0)
first=Entry(master)
first.grid(row=0, column=1)
calculated = Entry(master)
calculated.grid(row=1, column=1)
first.bind("<Return>", NewAge(first.get()))
Button(master, text='exit', command=master.destroy).grid(row=3, column=0)
master.mainloop()
I get the following traceback:
Traceback (most recent call last):
File "./bind.py", line 19, in <module>
first.bind("<Return>", NewAge(first.get()))
File "./bind.py", line 7, in NewAge
futureAge = start + 5
TypeError: must be str, not int
All hints & help greatly appreciated.
regards,
Chris Roy-Smith
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