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mrzv / dionysus

Library for computing persistent homology
http://mrzv.org/software/dionysus2
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Zigzag persistence calculation hangs in Python 3.7 #28

Closed nhchristianson closed 5 years ago

nhchristianson commented 5 years ago

When I try to calculate zigzag persistence, as in the example in the documentation, Python 3.7 hangs:

`Python 3.7.0 (default, Jul 9 2018, 16:42:22) [Clang 9.1.0 (clang-902.0.39.2)] on darwin Type "help", "copyright", "credits" or "license" for more information.

import dionysus as d f = d.Filtration([[0], [1], [0,1], [2], [0,2], [1,2]]) times = [[.4, .6, .7], [.1], [.9], [.9], [.9], [.9]] zz, dgms, cells = d.zigzag_homology_persistence(f, times)` (nothing happens, Python no longer responds)

I've tried installing the PyPI version as well as the current development version on the repository via pip; I've also cloned and built the repository on my own. This does not occur in Python 3.6.

mrzv commented 5 years ago

Just a quick confirmation that I see the problem. I haven't yet figured out what's causing it.

mrzv commented 5 years ago

This should now be fixed on master. Give it a try. I'm going to close this issue, but feel free to reopen it, if it doesn't work for you.