on an Ubuntu VM with :
1. Linux JP-Paid-UBUNTU-DSVM 4.13.0-1014-azure 2. Python 3.5.4 :: Anaconda custom (64-bit) $ manta manta_genSimData.py Loading script 'manta_genSimData.py' Traceback (most recent call last): skipping some details ... File "/anaconda/lib/python2.7/weakref.py", line 14, in <module> from _weakref import ( *ImportError: cannot import name _remove_dead_weakref* Script finished. -- https://mail.python.org/mailman/listinfo/python-list