nrutils(3) raises ImportError with latest positive

[duncanmmacleod]

Installing the latest version of positive alongside the nrutils3 branch of this project results in an ImportError:

  File "/opt/hostedtoolcache/Python/3.7.12/x64/lib/python3.7/site-packages/pwca/__init__.py", line 12, in <module>
    from . import core
  File "/opt/hostedtoolcache/Python/3.7.12/x64/lib/python3.7/site-packages/pwca/core.py", line 20, in <module>
    pwca_catalog = pickle.load( open( pwca_catalog_path, "rb" ) )
  File "/opt/hostedtoolcache/Python/3.7.12/x64/lib/python3.7/site-packages/nrutils/__init__.py", line 105, in <module>
    exec( r'import nrutils.%s' % p)
  File "<string>", line 1, in <module>
  File "/opt/hostedtoolcache/Python/3.7.12/x64/lib/python3.7/site-packages/nrutils/manipulate/__init__.py", line 12, in <module>
    exec( 'from nrutils.manipulate.%s import *' % module)
  File "<string>", line 1, in <module>
  File "/opt/hostedtoolcache/Python/3.7.12/x64/lib/python3.7/site-packages/nrutils/manipulate/rotate.py", line 4, in <module>
    from positive.maths import wdelement,wdmatrix
ImportError: cannot import name 'wdelement' from 'positive.maths' (/opt/hostedtoolcache/Python/3.7.12/x64/lib/python3.7/site-packages/positive/maths.py)

Build log: https://github.com/cardiffgravity/PhenomDCP/runs/4507939776?check_suite_focus=true