On Wed, Apr 26, 2017 at 8:34 PM, Phil <[email protected]> wrote: > On Wed, 26 Apr 2017 18:56:40 -0600 > Mats Wichmann <[email protected]> wrote: > >> On 04/26/2017 06:33 PM, Phil wrote: >> > Another question I'm afraid. >> > >> > If I want to remove 1 from a set then this is the answer: >> > >> > set([1,2,3]) - set([1]) >> > >> > I had this method working perfectly until I made a change to cure >> > another bug. >> > >> > So, I have a set represented in the debugger as {1,2,3} and again I >> > want to remove the one. Only this time the one set is represented >> > as {'1'} and, of course {'1'} is not in the set {1,2,3}. >> > >> > Ideally, I would like {'1'} to become {1}. Try as I may, I have not >> > discovered how to remove the '' marks. How do I achieve that? >> > >> >> A little confused... why not just create it the way you want it? How >> do you end up with {'1'} ? > > Thank you for your quick replies Mats and erky. > > I use .get() to retrieve a number from an entry box, which looks like {1} (no > '' marks). If I then turn this number into a set then the result is {'1'}. > > num = self.entry_grid[row][col].get()
I would think that it is here that you would want to do the string-to-integer conversion. The contents of an entry box are strings, not integers or floats. num = int(self.entry_grid[row][col].get()) It is a similar situation when using input() to get user input. You need to convert the 'number-like' strings to integers (or floats). -- boB _______________________________________________ Tutor maillist - [email protected] To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
