pillow fails on import

I tried to use --requirements=python3crystax,pillow,sdl2,pysdl2,pyjnius since my existing codebase depends on pillow, and the APK build goes through fine but there seems to be some issue importing pillow at runtime:

08-10 14:35:37.179 12293 12318 I python  :   File "./myprg/button.py", line 5, in <module>
08-10 14:35:37.179 12293 12318 I python  :     import PIL.Image
08-10 14:35:37.179 12293 12318 I python  :   File "/mnt/expand/ccbe4e94-5878-4053-8382-d825486cc844/user/0/org.example.myapp/files/app/crystax_python/site-packages/PIL/__init__.py", line 27, in <module>
08-10 14:35:37.180 12293 12318 I python  :     __doc__ = __doc__.format(__version__)  # include version in docstring
08-10 14:35:37.180 12293 12318 I python  : AttributeError: 'NoneType' object has no attribute 'format'
08-10 14:35:37.258 12293 12318 I python  : Python for android ended.

I'm not sure what's going on, but since pil doesn't build at all (gives a dependency graph error), I'm not sure how to proceed from here. Since I have an existing codebase depending on PIL/pillow (with pillow being preferred), I can't easily use SDL Image instead.

Ok after some more digging, this seems to be a pillow bug: python-pillow/Pillow#3231 I'll try pinning an older version to work around it