AttributeError: numpy module has no attribute 'warnings' when encountering All-NaN slice/axis

[junweizeng]

Hi all,

I encountered an issue while using the kmeans_plusplus_initializer function in the pyclustering.cluster.center_initializer module. The error message is as follows:

AttributeError: module 'numpy' has no attribute 'warnings'

The real cause of this error is in the following location of pyclustering 0.10.1.2:

pyclustering/pyclustering/cluster/center_initializer.py

Line 234 in 5b80a67

numpy.warnings.filterwarnings('ignore', r'All-NaN (slice|axis) encountered')

This error occurs seems that because the numpy.warnings module has been removed in recent versions of numpy, and the warnings module from Python's standard library should be used instead.

I was able to resolve this issue by modifying the source code in center_initializer.py. I replaced numpy.warnings.filterwarnings('ignore', r'All-NaN (slice|axis) encountered') with warnings.filterwarnings('ignore', r'All-NaN (slice|axis) encountered').

If this is indeed an issue, I would be happy to submit a PR to fix this bug. Please let me know if you would like me to proceed with this.

[junweizeng]

I found a PR (#697) that can fix this bug.

And this issue is a dup of #696.