use h5py==3.1. 3.2 has issues in python3.7

ortega2247 · ortega2247 · commit 6646be162671 · 2021-04-20T14:43:29.000-05:00
diff --git a/requirements.txt b/requirements.txt
@@ -1,7 +1,7 @@
 anytree>=2.8
 cython>=0.29
 editdistance>=0.5
-h5py>=3.1
+h5py==3.1
 hdbscan>=0.8
 matplotlib>=3.3
 networkx>=2.5
