Split template into python and python parts
Add python template to setup_package.py
Add processing of python template to cython_generator
Adjustment to import python wrapper...

…itself importing the cython extension
Update erfa.pyx
Commit erfa.py
Add "_" in front of erfa functions in cython wrapper
Properly deal with stat_ok
Fix `__all__` in both templates
Update to erfa.py and erfa.pyx
Fix import in erfa tests
pep8 fixes to erfa.py.templ
Update erfa.py, following pep8 fixes
One more pep8 fix
One more pep8 tweak
Yet again, a pep8 fix
Manual cherry pick of PR #3135

Credit goes to @mhvk
Merge pull request #3141 from jwoillez/erfa-speedup

Split erfa wrapper between python and cython sections