No more deprecated bdist_wininst .exe installers

[hugovk]

bdist_wininst (.exe installers) has been deprecated in Python 3.8, and bdist_wheel (wheel packages) should be used instead:

• https://discuss.python.org/t/deprecate-bdist-wininst/1929?u=hugovk
• bpo-37481: Deprecate distutils bdist_wininst command python/cpython#14553

As far as I can see in the codebase, it's only used in build.py --dist to create Windows installers for testing dev builds. There's already a build.py --wheel option for bdist_wheel packages. So let's remove --dist.

---

In https://discuss.python.org/t/deprecate-bdist-wininst/1929/12?u=hugovk, @cgohlke pointed out:

PyPI doesn’t even allow you to upload bdist_wininst (See PEP 527 ) anymore

Maybe a bug: Pillow still uploads bdist_wininst installers for Windows.

@cgohlke Are those .exe installers something you normally send over each release day? If so, we can just skip those.

---

Any objections to stop distributing .exe installers for the next release?

Here's the output of pypinfo --limit 10 pillow file, showing the download count for the Pillow files on PyPI over the last 30 days:

Served from cache: True
Data processed: 0.00 B
Data billed: 0.00 B
Estimated cost: $0.00

file	download_count
Pillow-6.1.0-cp27-cp27mu-manylinux1_x86_64.whl	1,747,882
Pillow-6.1.0-cp36-cp36m-manylinux1_x86_64.whl	961,926
Pillow-6.1.0-cp35-cp35m-manylinux1_x86_64.whl	531,485
Pillow-6.1.0-cp37-cp37m-manylinux1_x86_64.whl	438,457
Pillow-6.1.0-cp37-cp37m-win_amd64.whl	146,346
Pillow-6.1.0.tar.gz	133,063
Pillow-6.0.0-cp36-cp36m-manylinux1_x86_64.whl	131,780
Pillow-5.4.1-cp36-cp36m-manylinux1_x86_64.whl	123,360
Pillow-6.1.0-cp37-cp37m-win32.whl	113,811
Pillow-5.3.0-cp27-cp27mu-manylinux1_x86_64.whl	104,872
Total	4,432,982

And pypinfo --limit 1000 pillow file, contains no .exe and the last 56 rows are all for a single download.

[wiredfool]

I’m pretty sure that is just in there for the build artifacts on windows. I don’t think @cgohlke uses the winbuild bits for the actual releases.

[cgohlke]

Are those .exe installers something you normally send over each release day?

Those files are produced by my build script, which simply runs setup.py with bdist_wheel, bdist_egg, and bdist_wininst arguments for all supported CPython versions.

+1 for dropping bdist_wininst installers. According to PEP 527, PyPI should have stopped accepting uploads of bdist_wininst installers long ago (IIUC).

[radarhere]

See also #2832 (comment)