TypeError when developing tkinter notepad-like application in Python 3

Question

I've trying to make a notepad application - here's my current code:

from tkinter import *
top=Tk()
top.title('Mypad')
def save(self,s):
    self.s=filedialog.asksaveasfilename(defaultextension='.txt')
    c=open(self.s,'w')
    w=c.write(str(e.get('1.0','end')))
def close():
    top.destroy()
menubar=Menu(top)
file=Menu(menubar,tearoff=0)
vet=file.add_command(label='Save',command=save)
file.add_separator()
file.add_command(label='Exit',command=close)
menubar.add_cascade(label='File',menu=file)
e=Text()
e.pack(ipady=30)
top.config(menu=menubar)
top.mainloop()

But when I run it and try to save it it is saying like this

Exception in Tkinter callback
Traceback (most recent call last):
  File "D:\Workspace\python\lib\tkinter\__init__.py", line 1482, in __call__
    return self.func(*args)
TypeError: save() missing 2 required positional arguments: 'self' and 's'

What can I do to fix this?

Alok · Accepted Answer · 2014-03-08 14:02:11Z

1

You need to import filedialog first. And you don't need self here & neither s as argument.

from tkinter import *
from tkinter import filedialog
top=Tk()
top.title('Mypad')
def save():
    s=filedialog.asksaveasfilename(defaultextension='.txt')
    c=open(s,'w')
    w=c.write(str(e.get('1.0','end')))
def close():
    top.destroy()
menubar=Menu(top)
file=Menu(menubar,tearoff=0)
vet=file.add_command(label='Save',command=save)
file.add_separator()
file.add_command(label='Exit',command=close)
menubar.add_cascade(label='File',menu=file)
e=Text()
e.pack(ipady=30)
top.config(menu=menubar)
top.mainloop()

answered Mar 8, 2014 at 14:02

Alok

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