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| author | Ivan Levkivskyi <levkivskyi@gmail.com> | 2018-01-20 11:23:59 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-01-20 11:23:59 (GMT) |
| commit | d911e40e788fb679723d78b6ea11cabf46caed5a (patch) | |
| tree | f9743a329c64febe70f7be0b5d610c2a8ea4412d /Lib/dataclasses.py | |
| parent | d57f26c753dce61f72b52b96db3a3253d9f2fc3e (diff) | |
| download | cpython-d911e40e788fb679723d78b6ea11cabf46caed5a.zip cpython-d911e40e788fb679723d78b6ea11cabf46caed5a.tar.gz cpython-d911e40e788fb679723d78b6ea11cabf46caed5a.tar.bz2 | |
bpo-32226: PEP 560: improve typing module (#4906)
This PR re-designs the internal typing API using the new PEP 560 features.
However, there are only few minor changes in the public API.
Diffstat (limited to 'Lib/dataclasses.py')
| -rw-r--r-- | Lib/dataclasses.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Lib/dataclasses.py b/Lib/dataclasses.py index db14b0f..7d30da1 100644 --- a/Lib/dataclasses.py +++ b/Lib/dataclasses.py @@ -389,7 +389,8 @@ def _get_field(cls, a_name, a_type): if typing is not None: # This test uses a typing internal class, but it's the best # way to test if this is a ClassVar. - if type(a_type) is typing._ClassVar: + if (type(a_type) is typing._GenericAlias and + a_type.__origin__ is typing.ClassVar): # This field is a ClassVar, so it's not a field. f._field_type = _FIELD_CLASSVAR |