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Tue Jul 13 11:26:25 CEST 2004 · https://mail.python.org/pipermail/python-dev/2004-July/046109.html

Guido van Rossum wrote:
>>I've been having trouble running the tests lately, because test_pwd is
>>really slow.  It's a fairly trivial set of tests -- checking the types
>>of return values and cross-checking getpwall() vs.
>>getpwnam()/getpwuid().  The problem is if your password database is
>>provided by LDAP and is really big, the test takes an impractically
>>long time.
>>
>>Would anyone object if I changed the test suite to require some
>>resource to run test_pwd?  Or should I just make some local change to
>>disable it?
> 
> 
> How about instead limiting the number of entries checked to the first
> 100?  Try changing
> 
>         entries = pwd.getpwall()
> 
> into
> 
>         entries = pwd.getpwall()[:100]

If the bottleneck is in the n calls to pwd.getpwnam() and pwd.getpwuid()
limiting n is an option. If the bottleneck is the one call to
pwd.getpwall() adding a resource requirement might be the only option.

Bye,
    Walter Dörwald

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[Python-Dev] test_pwd is really slow