current folder contents gets copied matplotlib mpl-data

[RubendeBruin]

Apologies for this cripple bug report. Its an issue that just doesn't fit the template.

When compiling a project that makes use of matplotlib the contents of the current directory (cd) gets copied into dist/appname/matplotlib/mpl-data

That means that for example the ./build folder gets copied to
./dist/appname/matplotlib/mpl-data/build

Pretty sure this is caused by:

94879 INFO: Loading module hook 'hook-matplotlib.py' from 'c:\\miniconda3\\envs\\grillex_deploy\\lib\\site-packages\\PyInstaller\\hooks'...
Traceback (most recent call last):
  File "<string>", line 1, in <module>
AttributeError: module 'matplotlib' has no attribute '_get_data_path'

[rokm]

Duplicate of #5567, fixed by #5568. You'll need to use develop branch until next PyInstaller release if you want to use matplotlib 3.4.x.

[RubendeBruin]

Ah, ok. Did already dive into the import hook and did not see any obvious errors there. The print statement did yield the correct path.
Thanks!

[rokm]

Yeah, the hook was using a private function _get_data_path instead of public get_data_path, and the former was removed in matplotlib 3.4.0. So the hook effectively received an empty path, which corresponds to current working directory.