python-typing_extensions-3.7.4.2-bp153.1.19

- update to version 3.7.4.2
  * official support for Python 3.8 and 3.9

- Fix build without python2 available

- Update to version 3.7.4.1:
  + Fix isinstance() with generic protocol subclasses after subscripting
  + Fix tests for non-default interpreters
  + Use environment marker to specify typing dependency
  + Fix unions of protocols on Python 2

- Update to version 3.7.4:
  - No changelog available.
- Drop test-sys-executable.patch, merged upstream.

- Rebase the patch to the current git state

- Add support for Python <3.5, using upstream commit as
  test-sys-executable.patch to fix the tests, replacing custom sed.
- Remove unnecessary buid dependency on pytest and pytest-xdist

- Drop the old tarball

- Replace test_modules.tar.gz with python-testsuite
- Remove fix_tests.patch which is half fixing test_modules.tar.gz,
  and the other half is replaced with a less brittle sed.
- Remove unnecessary build dependencies
- Update to 3.7.2
  * Pass *args and **kwargs to superclass in Generic.__new__
  * Fix for issue #524
  * Fix typing_extensions to support PEP 560
  * Add annotations to NamedTuple children __new__ constructors
  * Add missing 'NoReturn' to __all__ in typing.py
  * Backport Generic.__new__ fix
  * Fix IO.closed to be property
  * Add Final to typing_extensions
  * Fix instance/subclass checks of functions against runtime protocols
  * Add Literal[...] types to typing_extensions

- Initial effort to package typing_extensions-3.6.6