-
Notifications
You must be signed in to change notification settings - Fork 903
/
F821_26.pyi
44 lines (35 loc) · 1.59 KB
/
F821_26.pyi
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
"""Tests for constructs allowed in `.pyi` stub files but not at runtime"""
from typing import Optional, TypeAlias, Union
__version__: str
__author__: str
# Forward references:
MaybeCStr: TypeAlias = Optional[CStr] # valid in a `.pyi` stub file, not in a `.py` runtime file
MaybeCStr2: TypeAlias = Optional["CStr"] # always okay
CStr: TypeAlias = Union[C, str] # valid in a `.pyi` stub file, not in a `.py` runtime file
CStr2: TypeAlias = Union["C", str] # always okay
# References to a class from inside the class:
class C:
other: C = ... # valid in a `.pyi` stub file, not in a `.py` runtime file
other2: "C" = ... # always okay
def from_str(self, s: str) -> C: ... # valid in a `.pyi` stub file, not in a `.py` runtime file
def from_str2(self, s: str) -> "C": ... # always okay
# Circular references:
class A:
foo: B # valid in a `.pyi` stub file, not in a `.py` runtime file
foo2: "B" # always okay
bar: dict[str, B] # valid in a `.pyi` stub file, not in a `.py` runtime file
bar2: dict[str, "A"] # always okay
class B:
foo: A # always okay
bar: dict[str, A] # always okay
class Leaf: ...
class Tree(list[Tree | Leaf]): ... # valid in a `.pyi` stub file, not in a `.py` runtime file
class Tree2(list["Tree | Leaf"]): ... # always okay
# Annotations are treated as assignments in .pyi files, but not in .py files
class MyClass:
foo: int
bar = foo # valid in a `.pyi` stub file, not in a `.py` runtime file
bar = "foo" # always okay
baz: MyClass
eggs = baz # valid in a `.pyi` stub file, not in a `.py` runtime file
eggs = "baz" # always okay