[Numpy-discussion] bug report: nonzero on masked arrays

[Andrew Straw]

I know there's been some discussion along these lines lately, but I
haven't followed it closely and thought I could still give a simple bug
report. I can post this on Trac if no one can tackle it immediately --
let me know.

--Andrew

In [1]: import numpy

In [2]: numpy.__file__
Out[2]:
'/home/astraw/py2.3-linux-x86_64/lib/python2.3/site-packages/numpy-0.9.6.2172-py2.3-linux-x86_64.egg/numpy/__init__.pyc'

In [3]: jj= numpy.ma.masked_array( [0,1,2,3,0,4,5,6],
mask=[0,0,0,1,1,1,0,0])

In [4]: numpy.ma.nonzero(jj)
---------------------------------------------------------------------------
exceptions.NameError                                 Traceback (most
recent call last)

/home/astraw/src/kookaburra/flydra/analysis/<ipython console>

/home/astraw/py2.3-linux-x86_64/lib/python2.3/site-packages/numpy-0.9.6.2172-py2.3-linux-x86_64.egg/numpy/core/ma.py
in __call__(self, a, *args, **kwargs)
    317             else:
    318                 if m.shape != shape:
--> 319                     m = mask_or(getmaskarray(a), getmaskarray(b))
    320         return masked_array(result, m)
    321

NameError: global name 'b' is not defined

In [5]: