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Showing content from https://mail.python.org/pipermail/python-dev/2005-June/054211.html below:

[Python-Dev] Wishlist: dowhile

[Python-Dev] Wishlist: dowhile [Python-Dev] Wishlist: dowhileMichael Chermside mcherm at mcherm.com
Tue Jun 14 14:09:33 CEST 2005
Jp Calderone writes:
> Anything can be a for loop.
>
>   for chunk in iter(lambda: f1.read(CHUNK_SIZE), ''):
>       f2.write(chunk)

Raymond responds:
> It would be nice to have this encapsulated in a file method:
>
>     for chunk in f1.iterblocks(CHUNK_SIZE):
>         f2.write(chunk)

What ever happened to "Not every 3 line function needs to be a builtin"?

It's a common pattern. It's easy to do. Where's the problem?

-- Michael Chermside

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