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# mode: run
# tag: pep563, pure3.7
from __future__ import annotations
def f(a: 1+2==3, b: list, c: this_cant_evaluate, d: "Hello from inside a string") -> "Return me!":
"""
The absolute exact strings aren't reproducible according to the PEP,
so be careful to avoid being too specific
>>> stypes = (type(""), type(u"")) # Python 2 is a bit awkward here
>>> eval(f.__annotations__['a'])
True
>>> isinstance(f.__annotations__['a'], stypes)
True
>>> print(f.__annotations__['b'])
list
>>> print(f.__annotations__['c'])
this_cant_evaluate
>>> isinstance(eval(f.__annotations__['d']), stypes)
True
>>> print(f.__annotations__['return'][1:-1]) # First and last could be either " or '
Return me!
>>> f.__annotations__['return'][0] == f.__annotations__['return'][-1]
True
"""
pass
def empty_decorator(cls):
return cls
@empty_decorator
class DecoratedStarship(object):
"""
>>> sorted(DecoratedStarship.__annotations__.items())
[('captain', 'str'), ('damage', 'cython.int')]
"""
captain: str = 'Picard' # instance variable with default
damage: cython.int # instance variable without default
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