Prior to 3.8 the underlying C class was not given a name in
python, so typeshed added _CursesWindow to use it as a type.
Now that it has a name in python, typeshed should use that name.
We can keep _CursesWindow as an alias, for anyone using that
already.
* run script and do some manual changes (Akuli)
* do the whole thing manually (srittau)
* merge changes (Akuli)
Co-authored-by: Sebastian Rittau <srittau@rittau.biz>
* Rename _CursesWindow to window in Python >= 3.8
The name _CursesWindow is not exposed at runtime which makes explicit type annotation difficult. It has to be wrapped in quotes, and this doesn't seem to work for all type checkers: PyLance's typechecker accepts it but Jedi's doesn't (tested in VS Code). This is especially annoying because with curses.wrapper(callback) there is no way to infer the type of the passed window except with an explicit annotation.
Experimentally, the type is exposed under the name "_curses.window" in Python 3.9 on both Ubuntu and Windows (via [windows-curses](https://pypi.org/project/windows-curses/)). While this is not explicitly documented as public, it is the name used for all the window method docs, and it is probably unlikely to change since some might interpret the lack of underscore as indicating it is public. Unfortunately it doesn't seem to be exposed as such in Python 2, but `¯\_(ツ)_/¯`. Using the runtime name should allow type checking to work with most typecheckers/platforms without quotes, and the old name can be kept as an alias for backwards compatibility.
I discovered the name _curses.window is only actually exported in Python >= 3.8 so I moved the name behind a version check, and reverted the original class name to _CursesWindow
Co-authored-by: Akuli <akuviljanen17@gmail.com>
Run the mypy test suite using Ubuntu 18.04. Ubuntu 20.04 doesn't have a package for virtualenv on Python 2.
Also, curses.color_pair() now has a named argument.
