[Python-projects] pylint and scipy/numpy

[Sylvain Thénault]

On Fri, Feb 22, 2008 at 10:48:41AM +0100, christophe grimault wrote:
> Hi there,
> 
> My python files import scipy. And if i use any function of scipy (fft,
> arange, zeros, ...), pylint complains with :
> 
> ...
> E0602:440:Interceptor.apply_channel: Undefined variable 'zeros'
> ...
> 
> Of course, the program works. But my pylint score is bad. And the change
> to:
> import scipy
> and use of:
> scipy.zeros
> 
> gains the bad 'wildcard import' but does not solve the previous problem.
> 
> Any help ?

hum, it sounds like pylint doesn't manage to follow numpy imports :

syt at crater:~$ cat pylint_zeros.py 
import scipy
print scipy.zeros
import numpy
print numpy.zeros
import numpy.core.multiarray as ncm
print ncm.zeros
syt at crater:~$ pylint -rn pylint_zeros.py 
No config file found, using default configuration
************* Module pylint_zeros
C:  1: Missing docstring
E:  2: Module 'scipy' has no 'zeros' member
E:  4: Module 'numpy' has no 'zeros' member

importing zeros from its actual definition module avoid the false
positive. That's not perfect but it does the trick until I found the
time to find why it can't find it from the numpy package (and so from
the scipy package).

-- 
Sylvain Thénault                               LOGILAB, Paris (France)
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