textpad seems to have a bug when you backspace from the
start of a line. By default, stripspaces is on, so it
tries to skip any spaces on the previous line. But if
there are no spaces, it raises a curses error and makes
the app quit.

Reproduce by:

$ python /usr/lib/python2.3/curses/textpad.py

type "1234567890" into the textpad

press backspace twice.

The problem is _end_of_line() function doing "last =
last + 1"

I think a better way would be to start at the end of
the line (last=self.maxx), and skip backwards while
"last" is a space:

        while last > 0 and ascii.ascii(self.win.inch(y,
last)) == ascii.SP:
            last -= 1

 

Logged In: YES 
user_id=11375

Thanks for reporting this problem!

Skipping backwards doesn't really solve the problem, because the function 
is supposed to return the index of the last space; even if you go 
backwards, you still need to increment 'last' by 1 to get the index of the 
space.  I think the fix is to do 'last = min(last+1, self.maxx)', and this is 
the fix I'll check in.

Logged In: YES 
user_id=11375

Fix committed to 2-4-maint and HEAD.