contrib: drop python2.7 from the Windows dependency install script
While we aren't quite ready to drop py27 yet, the MS compiler is no longer
available from MS (there is a copy on github if it's really needed), and that
causes the script to fail.
Differential Revision: https://phab.mercurial-scm.org/D11273
[build-system]
requires = ["setuptools", "wheel"]
build-backend = "setuptools.build_meta"
[tool.black]
line-length = 80
exclude = '''
build/
| wheelhouse/
| dist/
| packages/
| \.hg/
| \.mypy_cache/
| \.venv/
| mercurial/thirdparty/
'''
skip-string-normalization = true
quiet = true