signature="(m),(m)->(m)") error on Linux

[evanseitz]

Currently, trying to run pyem on Linux 3.7.10-1.28 via pip install git+https://github.com/asarnow/pyem, however, getting error due to pyem/util/quat.py.

The solution has been to go through and remove all instances (3) of , signature = ; e.g., changing the first of three lines to qconj = np.vectorize(_qconj) #, signature="(m),(m)->(m)") works when done for all 3.

To note, everything works fine on macOS.

[asarnow]

This is caused by an old version of numpy, from before the signature keyword was added to np.vectorize.

FYI, it will be much easier to keep the software up to date if you install following the guidelines in the wiki.