simon at callan.demon.co.uk
Thu Feb 15 14:33:31 EST 2001
In message <27Mi6.17200$AH6.2346966 at newsc.telia.net>
"Fredrik Lundh" <fredrik at pythonware.com> wrote:
> Simon Callan wrote:
> > def toRiscos(arg, dir, names):
> > temp = names
> this assignment doesn't make a copy, it just adds another reference
> to the "names" array.
<mumble> I throw myself on the mercy of the court, and plead
mitigating circumstances, to wit, having just spent a lot of effort
getting a C++ program to do a deep copy under precisely these
> two possible solutions: change the loop to
> for file in names[:]:
Bingo! This works first time, after allowing for the list changing in
size after a del.
> or get rid of the del statements. for-in won't loop over an item
> more than once anyway...
The reason for using the del is that os.path.walk() throws a serious
wobbly when it finds that the file has moved away from under it.
Thanks for your help.
More information about the Python-list