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Groups > comp.lang.python > #11591

Re: Linux : create a user if not exists

Date 2011-08-16 19:47 +0200
From Smaine Kahlouch <smainklh@gmail.com>
Subject Re: Linux : create a user if not exists
References <CA+zNewSOE1R4NRPQfg8edyDZ=ukwsCQnFkaTT9Ssu+5R5u5y9g@mail.gmail.com> <CAMZYqRRwf8ePhEMAAS2LKWGardXLzfMR7as=2Q1yQ2yK_QBvqQ@mail.gmail.com> <j2du0c$gau$1@dough.gmane.org> <CA+zNewQZzmTcD_9T+NA8HKtKQrvo8bFRPwu=A3tcdJ0W7HySDQ@mail.gmail.com> <4E4A9335.4010700@web.de>
Newsgroups comp.lang.python
Message-ID <mailman.90.1313516840.27778.python-list@python.org> (permalink)

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Le 16/08/2011 17:56, Alexander Kapps a écrit :
> On 16.08.2011 16:57, smain kahlouch wrote:
>> Ok than you. You're right but it doesn't help me :
>> I replaced it :
>>
>> >>> def finduser(user):
>> ...     if pwd.getpwnam(user):
>> ...             print user, "user exists"
>> ...             return True
>> ...     return False
>> ...
>> >>> finduser('realuser')
>> realuser user exists
>> True
>> >>> finduser('blabla')
>> Traceback (most recent call last):
>>    File "<stdin>", line 1, in ?
>>    File "<stdin>", line 2, in finduser
>> KeyError: 'getpwnam(): name not found: blabla'
>
>
> Untested:
>
> def finduser(name):
>     try:
>         return pwd.getpwnam(name)
>     except KeyError:
>         return None
>
> if not finduser("myuser"):
>     print "creating user..."
> else:
>     print "user already exists"
>
>
> Has the advantage that finduser() returns the user details if needed.
>
>
> (BTW: Please don't top-post)

Ok Thank you all, that works perfectly :)

See you soon,
Sam

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Re: Linux : create a user if not exists Smaine Kahlouch <smainklh@gmail.com> - 2011-08-16 19:47 +0200

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