[Python-Dev] re: Tutorial: Brief Introduction to the
Phillip J. Eby
pje at telecommunity.com
Thu Dec 4 18:27:28 EST 2003
At 02:27 PM 12/4/03 -0700, Kevin J. Butler wrote:
>The opposite question, "What is fundamentally wrong with list[:]..." has
>an easy answer:
>It takes experience or explanation of slicing to know what it does.
>copy(list) is easy even for novices to understand.
>When I know my code will be read by people unfamiliar with Python, I tend
>to annotate use of
>slices something like:
> list[:] # copy the list
>Python usually makes it easier to avoid sacrificing clarity on the altar
>of micro-optimization, but since the slice is the idiomatically correct
>way to spell copy(list) in Python, that's the way to write it.
Well, dictionaries have a .copy() method; lists could also grow one.
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