Log Message:
py-parsimonious: updated to 0.9.0

0.9.0
Add support for Python 3.7, 3.8, 3.9, 3.10 (righthandabacus, Lonnen)
Drop support for Python 2.x, 3.3, 3.4 (righthandabacus, Lonnen)
Remove six and go all in on Python 3 idioms (Lonnen)
Replace re with regex for improved handling of unicode characters in regexes \ 
(Oderjunkie)
Dropped nose for unittest (swayson)
Grammar.__repr__() now correctly escapes backslashes (ingolemo)
Custom rules can now be class methods in addition to functions (James Addison)
Make the ascii flag available in the regex syntax (Roman Inflianskas)