Exclude files from exe

I'm using `policy.resources_location_fallback = "filesystem-relative:lib"` and `policy.set_resource_handling_mode("files")`. Otherwise I get errors and some JSON files are not packaged. The files mode seems to blindly just take all files. I want to exclude some files, but this fails. I tried:

~~~
for resource in exe.pip_install(["-r", "../requirements.txt", "--no-deps"]):
if resource.path.endswith('pyc'):
continue
if 'dist-info' in resource.path:
continue
if '__pycache__' in resource.path:
continue
exe.add_python_resource(resource)
~~~

but still __pycache__ and pyc files are included. How to get rid of them?

Start with the resources returned by exe.pip_install and the handling of exe.add_python_resource when files mode is enabled. Reproduce the packaging with the shown filesystem-relative fallback and check how resource.path filtering is applied; done means the requested __pycache__, pyc, and dist-info files are absent while required JSON resources remain packaged.

Written by the indexing model from the issue text.