cpython/Lib/test/ann_module2.py

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"""
Some correct syntax for variable annotation here.
More examples are in test_grammar and test_parser.
"""
from typing import no_type_check, ClassVar
i: int = 1
j: int
x: float = i/10
def f():
class C: ...
return C()
f().new_attr: object = object()
class C:
def __init__(self, x: int) -> None:
self.x = x
c = C(5)
c.new_attr: int = 10
__annotations__ = {}
@no_type_check
class NTC:
def meth(self, param: complex) -> None:
...
class CV:
var: ClassVar['CV']
CV.var = CV()