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Re: Peculiar Behaviour of __builtins__

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  Re: Peculiar Behaviour of __builtins__ "Gabriel Genellina" <gagsl-py2@yahoo.com.ar> - 2011-05-12 22:59 -0300

#5278 — Re: Peculiar Behaviour of __builtins__

En Thu, 12 May 2011 20:29:57 -0300, Aman Nijhawan <amannijhawan@gmail.com>  
escribió:

> I was trying to call the builtin function min by using
> getattr(__builtins__,'min')
>
> This works at the interpretter prompt
>
> However when I called it inside a module that was imported by another  
> module
> it fails and gives an attribute error

__builtins__ (note the final 's') is an implementation detail. You want  
the __builtin__ (no 's') module, renamed 'builtin' in Python 3.x

py> import __builtin__
py> builtin_min = __builtin__.min
py> builtin_min([8,2,5])
2

See http://docs.python.org/library/__builtin__.html

Note: using getattr with a literal name is not so useful. Better to use  
dot notation.


-- 
Gabriel Genellina

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