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Remove deprecated C API objects slated for removal in 3.15 #133644
Description
Proposal:
This issue serves as a tracker for removing the following parts of the C API:
- Global configuration variables: #133654
- Process-wide parameters: #133661
-
PyImport_ImportModuleNoBlock: #133655 -
PyWeakref_GetObjectandPyWeakref_GET_OBJECT: #133657 - Functions to configure Python's initialization (
PySys_Set*& co) -
Py_UNICODE_WIDEandPy_UNICODEtype
Tracked separately:
-
vendored copy of(deferred to Python 3.16)libmpdecimal: #115119. -
PyUnicode_As{Encoded,Decoded}{Object,Unicode}: #133610 cc @StanFromIreland -
PySys_ResetWarnOptionsRemove deprecatedPySys_ResetWarnOptionsC-API function #138886 cc @sobolevn
I'll take care of doing the other deprecation removals and update c-api-pending-removal-in-3-15.
Has this already been discussed elsewhere?
This is a minor feature, which does not need previous discussion elsewhere
Links to previous discussion of this feature:
No response
Linked PRs
- gh-133644: remove deprecated global configuration variables #133654
- gh-133644: remove deprecated
PyImport_ImportModuleNoBlock#133655 - gh-133644: remove
PyWeakref_GetObjectandPyWeakref_GET_OBJECT#133657 - gh-133644: remove deprecated Python initialization getter functions #133661
- gh-133644: Avoid deprecated Py_SetProgramName() in _testembed.c #133665
- gh-133644: update
Py_InteractiveFlagdeprecation notice #133749 - [3.14] gh-133644: update
Py_InteractiveFlagdeprecation notice (GH-133749) #133751 - [3.13] gh-133644: update
Py_InteractiveFlagdeprecation notice (GH-133749) #133752 - gh-133644: Remove
PySys_SetArgv*for 3.15 #136277 - gh-138886: Remove deprecated
PySys_ResetWarnOptionsC-API function #138887
Activity
skirpichev commentedon May 8, 2025
gh-133644: remove deprecated `PyImport_ImportModuleNoBlock` (#133655)
pythongh-133644: Avoid deprecated Py_SetProgramName() in _testembed
pythongh-133644: Avoid deprecated Py_SetProgramName() in _testembed.c
gh-133644: Remove deprecated Python initialization getter functions (#…
gh-133644: update `Py_InteractiveFlag` deprecation notice (#133749)
pythongh-133644: update `Py_InteractiveFlag` deprecation notice (pyth…
pythongh-133644: update `Py_InteractiveFlag` deprecation notice (pyth…
[3.14] gh-133644: update `Py_InteractiveFlag` deprecation notice (GH-…
[3.13] gh-133644: update `Py_InteractiveFlag` deprecation notice (GH-…
gh-133644: Avoid deprecated Py_SetProgramName() in _testembed.c (#133665
1 remaining item
StanFromIreland commentedon Jul 9, 2025
I think we can cross out
libmpdecimalremoval since it has been deferred to 3.16?StanFromIreland commentedon Jul 9, 2025
Looking at just the top 500 pypi packages (Thanks Victor!), there is still usage in several packages. Do we want to postpone to 3.16?
vstinner commentedon Jul 11, 2025
How is it used? How many projects use them?
vstinner commentedon Jul 11, 2025
Right, we should wait for Python 3.16.
pythongh-133644: remove deprecated `PyImport_ImportModuleNoBlock` (py…
pythongh-133644: Remove deprecated Python initialization getter funct…
pythongh-133644: update `Py_InteractiveFlag` deprecation notice (pyth…
pythongh-133644: Avoid deprecated Py_SetProgramName() in _testembed.c (…
pythongh-133644: remove deprecated `PyImport_ImportModuleNoBlock` (py…
pythongh-133644: Remove deprecated Python initialization getter funct…
pythongh-133644: update `Py_InteractiveFlag` deprecation notice (pyth…
pythongh-133644: Avoid deprecated Py_SetProgramName() in _testembed.c (…
gh-133644: remove `PyWeakref_GetObject` and `PyWeakref_GET_OBJECT` (G…
encukou commentedon Feb 27, 2026
For
Py_UNICODE_WIDEI propose soft deprecation instead.There's been no user warning outside docs, and removing an
#ifdefmacro can silently change the value.