Sunday, August 7, 2011

Python errors: numpy vs. Numeric

Today I decided to clarify some of the error that we met and I found a solution.

I created a new series called: Python errors

The first error occurs in trying to run scripts that require Numeric module.

You can run python 2.7 with numpy. But the Numeric module is not available in python 2.7 .

Such a script will try to import module:

import Numeric

and the next step will be something like:

s = Numeric.zeros((N,N),Numeric.Float32)
s = Numeric.zeros((N,N),Numeric.Int32)

The first error is :

    import Numeric
ImportError: No module named Numeric

Now , if you change from Numeric in numpy then you got this error:

    ... = numpy.zeros( (N,N),numpy.Float32 )
AttributeError: 'module' object has no attribute 'Float32'
To working well, just use this :
numpy.zeros( (N,N),float)
numpy.zeros( (N,N), int)

Actually, should be replaced :




The same applies for Int32 .