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| author | Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> | 2021-04-06 05:31:54 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-04-06 05:31:54 (GMT) |
| commit | b132be8b43afa739b7eda271b82711d64a83da4f (patch) | |
| tree | 170e079297320b5ccb5c8eee3c9af0087dfaf853 /Lib/dataclasses.py | |
| parent | bdee2a389e4b10e1c0ab65bbd4fd03defe7b2837 (diff) | |
| download | cpython-b132be8b43afa739b7eda271b82711d64a83da4f.zip cpython-b132be8b43afa739b7eda271b82711d64a83da4f.tar.gz cpython-b132be8b43afa739b7eda271b82711d64a83da4f.tar.bz2 | |
bpo-43176: Fix processing of empty dataclasses (GH-24484)
When a dataclass inherits from an empty base, all immutability checks are omitted. This PR fixes this and adds tests for it.
Automerge-Triggered-By: GH:ericvsmith
(cherry picked from commit 376ffc6ac491da74920aed1b8e35bc371cb766ac)
Co-authored-by: Iurii Kemaev <6885137+hbq1@users.noreply.github.com>
Diffstat (limited to 'Lib/dataclasses.py')
| -rw-r--r-- | Lib/dataclasses.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Lib/dataclasses.py b/Lib/dataclasses.py index c38e16a..5825e8e 100644 --- a/Lib/dataclasses.py +++ b/Lib/dataclasses.py @@ -834,7 +834,7 @@ def _process_class(cls, init, repr, eq, order, unsafe_hash, frozen): # Only process classes that have been processed by our # decorator. That is, they have a _FIELDS attribute. base_fields = getattr(b, _FIELDS, None) - if base_fields: + if base_fields is not None: has_dataclass_bases = True for f in base_fields.values(): fields[f.name] = f |