"failed to catalog" error when scanning Python apps

[luoyimu1]

What happened:
"failed to catalog" error when scanning Python apps:
[0006] ERROR failed to catalog: 1 error occurred:
unable to catalog python package=/usr/local/lib/python3.9/site-packages/distlib-0.3.1.dist-info/METADATA: missing python package top_level.txt (package="/usr/local/lib/python3.9/site-packages/distlib-0.3.1.dist-info/METADATA")

What you expected to happen:
I dunno if top_level.txt is required in Python eggs, or whether Grype thinks they are required, but they are not really required

How to reproduce it (as minimally and precisely as possible):
Python app source code:
https://github.com/luoyimu1/hermitcrab
Grype cmd I ran: grype --scope all-layers

Anything else we need to know?:

Environment:

• Output of grype version: 0.1.0, 0.2.0
• OS (e.g: cat /etc/os-release or similar): Linux

[wagde-orca]

@wagoodman i believe this is the same issue you fixed in syft. Right?
when do you expect to have the fix integrated in grype?

[luhring]

Closing as duplicate to anchore/syft#259 — please see that issue for details. Thanks!