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| author | Serhiy Storchaka <storchaka@gmail.com> | 2020-04-04 18:31:30 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-04-04 18:31:30 (GMT) |
| commit | a94e6272f16381349dbed74cdb738ec8ae23b4fe (patch) | |
| tree | 88b84259573c0752ded1fce71c76094f8cb7989a /Lib/typing.py | |
| parent | 1ae6445391cc3519733df69a4448059d6eff3c6f (diff) | |
| download | cpython-a94e6272f16381349dbed74cdb738ec8ae23b4fe.zip cpython-a94e6272f16381349dbed74cdb738ec8ae23b4fe.tar.gz cpython-a94e6272f16381349dbed74cdb738ec8ae23b4fe.tar.bz2 | |
bpo-36517: Raise error on multiple inheritance with NamedTuple (GH-19363)
Diffstat (limited to 'Lib/typing.py')
| -rw-r--r-- | Lib/typing.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Lib/typing.py b/Lib/typing.py index 5351883..99355d0 100644 --- a/Lib/typing.py +++ b/Lib/typing.py @@ -1728,6 +1728,9 @@ class NamedTupleMeta(type): def __new__(cls, typename, bases, ns): if ns.get('_root', False): return super().__new__(cls, typename, bases, ns) + if len(bases) > 1: + raise TypeError("Multiple inheritance with NamedTuple is not supported") + assert bases[0] is NamedTuple types = ns.get('__annotations__', {}) nm_tpl = _make_nmtuple(typename, types.items()) defaults = [] |