Get strings from list using variables

mwade · 10-27-2006, 09:55 AM

Hi all, I'm struggling to get my list items using variables, here is what I have...

Code:

  def getmyname(self):
    myint = self.var.get()
    users = self.getUsers()
    if myint:
      myname = users[myint] + '/'
    else:
      showwarning('No User', 'No user has been selected')
      myname = ''
    return myname

and it doesn't like that.

Quote:

myname = users[myint] + '/'
TypeError: list indices must be integers

self.var.get() just gets the variable from the radio button, if 0 then myname is the name of the first user in my list etc. self.getUsers() is a sub procedure that returns all names in list form from a text file. It's simple enough but I can't work out how to get the list to accept variables. Any ideas anyone? Thanks.

Edit: This is python coding.

ghostdog74 · 10-27-2006, 10:36 AM

Quote:

Originally Posted by mwade

Hi all, I'm struggling to get my list items using variables, here is what I have...

Code:

  def getmyname(self):
    myint = self.var.get()
    users = self.getUsers()
    if myint:
      myname = users[myint] + '/'
    else:
      showwarning('No User', 'No user has been selected')
      myname = ''
    return myname

and it doesn't like that.

self.var.get() just gets the variable from the radio button, if 0 then myname is the name of the first user in my list etc. self.getUsers() is a sub procedure that returns all names in list form from a text file. It's simple enough but I can't work out how to get the list to accept variables. Any ideas anyone? Thanks.

Edit: This is python coding.

Judging from the error message, your myint is not an integer.
Try converting it to int before using it with the "users" list
eg

Code:

..
myint = int(self.var.get())
...

mwade · 10-28-2006, 06:26 AM

I thought that would work until this error appeared

What does this mean? I've searched the internet and there are plenty of things about it but none have helped me. Am I approaching this the correct way or is there an easier way to link radio buttons to a list of users? Thanks.

Code:

    myint = int(self.var.get())
ValueError: invalid literal for int():

ghostdog74 · 10-28-2006, 08:14 AM

hi
how about trying:

Code:

...
myint = self.var.get()
myint = int(myint)
..

mwade · 10-28-2006, 11:09 AM

That's it! A mix between me being an idiot and python not liking some coding caused the error. I was not clicking a user and the error handling was in the wrong place. Here is the working code.

Code:

  def getmyname(self):
    myint = self.var.get()
    users = self.getUsers()
    if myint:
      myint = int(myint)
      myname = users[myint] + '/'
    else:
      showwarning('No User', 'No user has been selected')
      myname = ''
    return myname

It wouldn't work with the

Code:

myint = int(myint)

line above the

Code:

if myint:

line because it can't turn nothing into an integer. Well problem solved now so thanks alot ghostdog74!

ghostdog74 · 10-28-2006, 08:01 PM

no problem