Error with the scout add-on in Heroku

[danitico]

With version 2.14.1 of this package, I encounter the following error:
` File "/code/nluproxy/init.py", line 3, in

from .celery import app as celery_app

File "/code/nluproxy/celery.py", line 12, in

scout_apm.celery.install(app)

File "/usr/local/lib/python3.7/site-packages/scout_apm/celery.py", line 58, in install

installed = scout_apm.core.install()

File "/usr/local/lib/python3.7/site-packages/scout_apm/compat.py", line 132, in wrapper

return func(*args, **kwargs)

File "/usr/local/lib/python3.7/site-packages/scout_apm/core/init.py", line 46, in install

report_app_metadata()

File "/usr/local/lib/python3.7/site-packages/scout_apm/core/metadata.py", line 17, in report_app_metadata

event_value=get_metadata(),

File "/usr/local/lib/python3.7/site-packages/scout_apm/core/metadata.py", line 37, in get_metadata

"libraries": get_python_packages_versions(),

File "/usr/local/lib/python3.7/site-packages/scout_apm/core/metadata.py", line 60, in get_python_packages_versions

for distribution in distributions()

TypeError: '<' not supported between instances of 'NoneType' and 'str'

`

[adamchainz]

Fixed in #523, released in version 2.14.2. Please upgrade and let me know if it still doesn't work.

The issue was with an installed package not having a name or version. We now gracefully handle such packages. If this started happening because you upgraded a package, it could be useful to know which package it is, at least to try fix it there.

[danitico]

It works @adamchainz 🎉