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[refactor] Update errorcodes.py: harmonize all of the type annotations#19880

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hauntsaninja merged 4 commits into
python:masterfrom
wyattscarpenter:ffinal
Sep 20, 2025
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[refactor] Update errorcodes.py: harmonize all of the type annotations#19880
hauntsaninja merged 4 commits into
python:masterfrom
wyattscarpenter:ffinal

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@wyattscarpenter wyattscarpenter commented Sep 18, 2025

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This completes an in-line todo from 3 years ago relating to a weakness that mypy no longer has (edit: I did not read carefully enough. But I did eventually stumble upon a sufficient workaround for mypyc/mypyc#1142), and removes code with no downside.

There is no need for tests beyond the current CI.

wyattscarpenter and others added 2 commits September 18, 2025 22:33
This completes an in-line todo, and removes code with no downside.
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@wyattscarpenter wyattscarpenter marked this pull request as draft September 18, 2025 16:11
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Diff from mypy_primer, showing the effect of this PR on open source code:

AutoSplit (https://github.com/Toufool/AutoSplit)
-   File "/tmp/mypy_primer/mypy_old/venv/bin/mypy", line 7, in <module>
+   File "/tmp/mypy_primer/mypy_new/venv/bin/mypy", line 7, in <module>
-   File "/tmp/mypy_primer/mypy_old/venv/lib/python3.13/site-packages/mypy/__main__.py", line 15, in console_entry
+   File "/tmp/mypy_primer/mypy_new/venv/lib/python3.13/site-packages/mypy/__main__.py", line 15, in console_entry
-   File "/tmp/mypy_primer/mypy_old/venv/lib/python3.13/site-packages/mypy/main.py", line 127, in main
+   File "/tmp/mypy_primer/mypy_new/venv/lib/python3.13/site-packages/mypy/main.py", line 127, in main
-   File "/tmp/mypy_primer/mypy_old/venv/lib/python3.13/site-packages/mypy/main.py", line 211, in run_build
+   File "/tmp/mypy_primer/mypy_new/venv/lib/python3.13/site-packages/mypy/main.py", line 211, in run_build
-   File "/tmp/mypy_primer/mypy_old/venv/lib/python3.13/site-packages/mypy/build.py", line 196, in build
+   File "/tmp/mypy_primer/mypy_new/venv/lib/python3.13/site-packages/mypy/build.py", line 196, in build
-   File "/tmp/mypy_primer/mypy_old/venv/lib/python3.13/site-packages/mypy/build.py", line 272, in _build
+   File "/tmp/mypy_primer/mypy_new/venv/lib/python3.13/site-packages/mypy/build.py", line 272, in _build
-   File "/tmp/mypy_primer/mypy_old/venv/lib/python3.13/site-packages/mypy/build.py", line 2946, in dispatch
+   File "/tmp/mypy_primer/mypy_new/venv/lib/python3.13/site-packages/mypy/build.py", line 2946, in dispatch
-   File "/tmp/mypy_primer/mypy_old/venv/lib/python3.13/site-packages/mypy/build.py", line 3346, in process_graph
+   File "/tmp/mypy_primer/mypy_new/venv/lib/python3.13/site-packages/mypy/build.py", line 3346, in process_graph
-   File "/tmp/mypy_primer/mypy_old/venv/lib/python3.13/site-packages/mypy/build.py", line 3475, in process_stale_scc
+   File "/tmp/mypy_primer/mypy_new/venv/lib/python3.13/site-packages/mypy/build.py", line 3475, in process_stale_scc
-   File "/tmp/mypy_primer/mypy_old/venv/lib/python3.13/site-packages/mypy/build.py", line 2493, in write_cache
+   File "/tmp/mypy_primer/mypy_new/venv/lib/python3.13/site-packages/mypy/build.py", line 2493, in write_cache
-   File "/tmp/mypy_primer/mypy_old/venv/lib/python3.13/site-packages/mypy/cache.py", line 28, in __init__
+   File "/tmp/mypy_primer/mypy_new/venv/lib/python3.13/site-packages/mypy/cache.py", line 28, in __init__

@wyattscarpenter wyattscarpenter marked this pull request as ready for review September 18, 2025 19:02

@hauntsaninja hauntsaninja left a comment

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Interesting thank you, could be cool to investigate/fix the mypyc issue too!

@hauntsaninja hauntsaninja merged commit f955623 into python:master Sep 20, 2025
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@wyattscarpenter wyattscarpenter deleted the ffinal branch September 30, 2025 00:15
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2 participants