pydocstyle 6.3.0 fails silently on a python script that has no .py extension

[dstromberg]

The Subject pretty much says it, but here's supporting detail:

$ pydocstyle lld
below cmd output started 2023 Wed Aug 09 08:43:44 AM PDT
above cmd output done 2023 Wed Aug 09 08:43:44 AM PDT
dstromberg@usbopl-vdi001:~/src/experiments/lock-leak-detect x86_64-pc-linux-gnu 3696430

$ echo $?
below cmd output started 2023 Wed Aug 09 08:43:47 AM PDT
0
above cmd output done 2023 Wed Aug 09 08:43:47 AM PDT
dstromberg@usbopl-vdi001:~/src/experiments/lock-leak-detect x86_64-pc-linux-gnu 3696430

$ mv lld lld.py
below cmd output started 2023 Wed Aug 09 08:43:49 AM PDT
above cmd output done 2023 Wed Aug 09 08:43:49 AM PDT
dstromberg@usbopl-vdi001:~/src/experiments/lock-leak-detect x86_64-pc-linux-gnu 3696430

$ pydocstyle lld.py
below cmd output started 2023 Wed Aug 09 08:43:53 AM PDT
lld.py:10 in public class Logentry:
D101: Missing docstring in public class
lld.py:11 in public method __init__:
D107: Missing docstring in init
lld.py:28 in public method __repr__:
D105: Missing docstring in magic method
lld.py:34 in public class Lockstate:
D101: Missing docstring in public class
lld.py:35 in public method __init__:
D107: Missing docstring in init
lld.py:39 in public method process_logentry:
D102: Missing docstring in public method
lld.py:59 in public method __repr__:
D105: Missing docstring in magic method

$ pydocstyle --version
below cmd output started 2023 Wed Aug 09 08:44:19 AM PDT
6.3.0
above cmd output done 2023 Wed Aug 09 08:44:19 AM PDT

Thanks for the useful tool!