(🐞) crash with `--pretty` from attrs raising an error in the wrong file

> git clone https://github.com/DataDog/dd-trace-py
> cd dd-trace-py
> pip install -e .
> pip install mypy
> mypy --strict --check-untyped-defs | grep threading.py
ddtrace/profiling/collector/threading.py:25: error: Need type annotation for "recorder"  [var-annotated]
ddtrace/profiling/collector/threading.py:29: error: Function is missing a type annotation for one or more arguments  [no-untyped-def]
ddtrace/profiling/collector/threading.py:316: error: Need type annotation for "tracer"  [var-annotated]
> mypy --strict --check-untyped-defs --pretty
...
  File "mypy/main.py", line 100, in main
  File "mypy/main.py", line 182, in run_build
  File "mypy/build.py", line 192, in build
  File "mypy/build.py", line 266, in _build
  File "mypy/build.py", line 2942, in dispatch
  File "mypy/build.py", line 3340, in process_graph
  File "mypy/build.py", line 3465, in process_stale_scc
  File "mypy/errors.py", line 915, in file_messages
  File "mypy/errors.py", line 885, in format_messages
IndexError: list index out of range

threading.py:316: error, threading only has 43 lines in it.

Reproduisez le crash avec mypy --strict --check-untyped-defs --pretty après avoir suivi les commandes de configuration de l’issue. Commencez dans mypy/errors.py, en particulier dans format_messages et file_messages, et comparez l’emplacement signalé avec les erreurs de ddtrace/profiling/collector/threading.py ; le travail est terminé lorsque --pretty s’exécute jusqu’au bout sans IndexError et signale des emplacements valides.