These type annotations are unnecessary and seem to confuse the type system.
* Remove annotation from PlistFormat enum members
Same rationale as python/typeshed#2314; same adverse effects observed.
Also, mark AST._attributes and _fields as class vars.
`lineno` and `col_offset` were previously defined on a few sub-classes of `AST`, e.g. `expr`, even though https://docs.python.org/3/library/ast.html explicitly states that `AST` has these two attributes. These attributes are only present if they were supplied as arguments to the constructor, but the same is true for the subclasses.
* Drop support for Python 3.3
* Merge Python 2 and 3 shutil
* Marked some arguments optional
* Changed callback return type from None to Any for more flexibility
The previous definitions in `mock` caused many false positives in
internal Dropbox repositories.
One source of problems was `List[Mock]` not being compatible with
`List[SomeClass]`, since `list` is invariant.
This is needed to make TextIOWrapper and a few classes that inherit
from it concrete in 3.3. I am actually not sure whether this method
exists at runtime; there's nothing in
https://docs.python.org/3/library/io.html#io.TextIOWrapper
that suggests it was added in 3.4. In any case, it hardly matters
since 3.3 usage should be very rare now.
Make the Python 2 and 3 concurrent.futures stubs identical so fixes get
applied to both.
For example, #1305 and #2233 fixed the same problem at different times,
as did #1078 and #1911.
By making the stubs identical, we apply the fix from #1711 to Python 2.
Fixes#2234.
memoryview type information inconsistent with documentation of typing module.
`memoryview` should be a ByteString like the docs say.
`memoryview.__init__` does not accept str, and instead of a union it should just accept ByteString.
`memoryview.__iter__` returns an Iterator[int] not bytes.
Fixes#1850.
The fix was already applied to Python 2, but the typevar-based solution there
leads to "cannot infer value of type variable" in mypy. I used the following
script to check:
```python
from itertools import product
reveal_type(product([1]))
reveal_type(product([1], ['x'], [False], [3.0], [(1,)], [('x',)], [{1}], [{1: 2}], repeat=5))
```
Fixes#1940.
This makes it so that mypy will infer the common base class of these
classes to be Awaitable instead of Iterable. I verified that this
fixes the errors in the script posted by @neilconway.
The annotations, formatarg, formatvarargs, formatvarkw, formatvalue,
formatreturns, and formatannotations arguments to inspect.formatargspec
have default values, but they cannot be None.
