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_overload_dummy raisesNotImplementedError, notRuntimeError#98351

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@sobolevn
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Source:

cpython/Lib/typing.py

Lines 2536 to 2542 ineae7dad

def_overload_dummy(*args,**kwds):
"""Helper for @overload to raise when called."""
raiseNotImplementedError(
"You should not call an overloaded function. "
"A series of @overload-decorated functions "
"outside a stub module should always be followed "
"by an implementation that is not @overload-ed.")

I've found this while looking for implicit abstract classes / methods in CPython.

Test was checking forRuntimeError, it is technically correct:

>>>NotImplementedError.__mro__(<class'NotImplementedError'>,<class'RuntimeError'>,<class'Exception'>,<class'BaseException'>,<class'object'>)

But, we can be more precise. It is a good thing.
I am going to skip creating an issue for this, it is like a typo-fix :)

@bedevere-botbedevere-bot added awaiting review testsTests in the Lib/test dir labelsOct 17, 2022
@sobolevnsobolevn added skip issue skip news testsTests in the Lib/test dir awaiting review and removed testsTests in the Lib/test dir awaiting review labelsOct 17, 2022
@sobolevnsobolevn changed the title_overload_dummy raiseNotImplementedError, notRuntimeError_overload_dummy raisesNotImplementedError, notRuntimeErrorOct 17, 2022
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@JelleZijlstraJelleZijlstra left a comment

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Thanks for catching this!

I feel likeRuntimeError is a better exception to throw thanNotImplementedError here, but we've apparently always used NotImplementedError and it's not worth changing.

@JelleZijlstraJelleZijlstra merged commit1ca6647 intopython:mainOct 20, 2022
@miss-islington
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Thanks@sobolevn for the PR, and@JelleZijlstra for merging it 🌮🎉.. I'm working now to backport this PR to: 3.10, 3.11.
🐍🍒⛏🤖 I'm not a witch! I'm not a witch!

@miss-islington
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Sorry,@sobolevn and@JelleZijlstra, I could not cleanly backport this to3.10 due to a conflict.
Please backport usingcherry_picker on command line.
cherry_picker 1ca6647f22794f0a0c982ecb03e764db76d51087 3.10

@bedevere-bot
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GH-98470 is a backport of this pull request to the3.11 branch.

@bedevere-botbedevere-bot removed the needs backport to 3.11only security fixes labelOct 20, 2022
miss-islington pushed a commit to miss-islington/cpython that referenced this pull requestOct 20, 2022
…ntimeError` (pythonGH-98351)(cherry picked from commit1ca6647)Co-authored-by: Nikita Sobolev <mail@sobolevn.me>
@JelleZijlstraJelleZijlstra removed the needs backport to 3.10only security fixes labelOct 20, 2022
@JelleZijlstra
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These tests don't exist in 3.10.

miss-islington added a commit that referenced this pull requestOct 20, 2022
…ntimeError` (GH-98351)(cherry picked from commit1ca6647)Co-authored-by: Nikita Sobolev <mail@sobolevn.me>
carljm added a commit to carljm/cpython that referenced this pull requestOct 20, 2022
* main: (40 commits)pythongh-98461: Fix source location in comprehensions bytecode (pythonGH-98464)pythongh-98421: Clean Up PyObject_Print (pythonGH-98422)pythongh-98360: multiprocessing now spawns children on Windows with correct argv[0] in virtual environments (pythonGH-98462)  CODEOWNERS: Become a typing code owner (python#98480)  [doc] Improve logging cookbook example. (pythonGH-98481)  Add more tkinter.Canvas tests (pythonGH-98475)pythongh-95023: Added os.setns and os.unshare functions (python#95046)pythonGH-98363: Presize the list for batched() (pythonGH-98419)pythongh-98374: Suppress ImportError for invalid query for help() command. (pythongh-98450)  typing tests: `_overload_dummy` raises `NotImplementedError`, not `RuntimeError` (python#98351)pythongh-98354: Add unicode check for 'name' attribute in _imp_create_builtin (pythonGH-98412)pythongh-98257: Make _PyEval_SetTrace() reentrant (python#98258)pythongh-98414: py.exe launcher does not use defaults for -V:company/ option (pythonGH-98460)pythongh-98417: Store int_max_str_digits on the Interpreter State (pythonGH-98418)  Doc: Remove title text from internal links (python#98409)  [doc] Refresh the venv introduction documentation, and correct the statement about VIRTUAL_ENV (pythonGH-98350)  Docs: Bump sphinx-lint and fix unbalanced inline literal markup (python#98441)pythongh-92886: Replace assertion statements in `handlers.BaseHandler` to support running with optimizations (`-O`) (pythonGH-93231)pythongh-92886: Fix tests that fail when running with optimizations (`-O`) in `_test_multiprocessing.py` (pythonGH-93233)pythongh-92886: Fix tests that fail when running with optimizations (`-O`) in `test_py_compile.py` (pythonGH-93235)  ...
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@JelleZijlstraJelleZijlstraJelleZijlstra approved these changes

@gvanrossumgvanrossumgvanrossum approved these changes

@Fidget-SpinnerFidget-SpinnerFidget-Spinner approved these changes

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