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Groups > comp.lang.python > #63818
| Date | 2014-01-13 10:00 +0100 |
|---|---|
| From | Laszlo Nagy <gandalf@shopzeus.com> |
| Subject | Re: L[:] |
| References | <1389375507.21198.YahooMailBasic@web163801.mail.gq1.yahoo.com> <lapspc$vp0$1@ger.gmane.org> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.5398.1389604172.18130.python-list@python.org> (permalink) |
> Unless L is aliased, this is silly code.
There is another use case. If you intend to modify a list within a for
loop that goes over the same list, then you need to iterate over a copy.
And this cannot be called an "alias" because it has no name:
for idx,item in enumerate(L[:]):
# do something with L here, including modification
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Re: L[:] Laszlo Nagy <gandalf@shopzeus.com> - 2014-01-13 10:00 +0100
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