diff options
| author | Josh Cannon <joshdcannon@gmail.com> | 2024-05-21 19:37:32 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-05-21 19:37:32 (GMT) |
| commit | e3ed574f6acddf76e96a9b0fcbad35f15508cba1 (patch) | |
| tree | b348ab49229bd3d8a5ef870b13244ce864876aa9 /Doc | |
| parent | 10b1bd926a5546e0f5cbd1a47d00dc5ff84f1979 (diff) | |
| download | cpython-e3ed574f6acddf76e96a9b0fcbad35f15508cba1.zip cpython-e3ed574f6acddf76e96a9b0fcbad35f15508cba1.tar.gz cpython-e3ed574f6acddf76e96a9b0fcbad35f15508cba1.tar.bz2 | |
gh-90562: Mention slots pitfall in dataclass docs (#107391)
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Co-authored-by: Erlend E. Aasland <erlend@python.org>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/library/dataclasses.rst | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Doc/library/dataclasses.rst b/Doc/library/dataclasses.rst index 045bf62..cf707ca 100644 --- a/Doc/library/dataclasses.rst +++ b/Doc/library/dataclasses.rst @@ -185,7 +185,10 @@ Module contents - *slots*: If true (the default is ``False``), :attr:`~object.__slots__` attribute will be generated and new class will be returned instead of the original one. If :attr:`!__slots__` is already defined in the class, then :exc:`TypeError` - is raised. + is raised. Calling no-arg :func:`super` in dataclasses using ``slots=True`` will result in + the following exception being raised: + ``TypeError: super(type, obj): obj must be an instance or subtype of type``. + The two-arg :func:`super` is a valid workaround. See :gh:`90562` for full details. .. versionadded:: 3.10 |