setuptools (39.1.0) doesn't set up Description-Content-Type correctly on Windows

[hsiaoyi0504]

Originally reported in pypi/warehouse#4341.

It looks like long_description is full of Windows-style carriage-return characters (^M) which seem to have confused twine/pkginfo about what is and what isn't part of long_description.

My project at PyPI is at: https://pypi.org/project/gff3tool/1.4.2.

Libraries used:

wheel==0.31.1
setuptools==39.1.0
twine==1.11.0

[di]

The actual issue here is that setuptools is writing out a PKG-INFO file with CRLF line endings (^M) on some lines, which confuses things downstream for pkginfo/twine.

[ajostergaard]

I have the same symptoms.

I am using Cygwin, @hsiaoyi0504, are you also using Cygwin?

@di is it possible to confirm that I have the exact same issue? My project is https://pypi.org/project/django-payments-redsys/0.3/

Update: figured out where my PKG-INFO was, no CRLF line endings so must be a different problem. Still, seems like a setuptools issue as twine version 1.11.0 (pkginfo: 1.4.2, requests: 2.19.1, setuptools: 40.1.0, requests-toolbelt: 0.8.0, tqdm: 4.24.0) and long_description_content_type='text/markdown' in setup but no long_description_content_type in PKG-INFO.

[hsiaoyi0504]

@ajostergaard Sorry, I didn’t use Cygwin.

[ajostergaard]

@hsiaoyi0504 oh well - worth a try. ;)

[ajostergaard]

In case its useful to anybody happening along, my problem was that I was using Python 2.7 to run setup... It works fine using Python 3.6. :)

@di tagging you in case you want to add a note to your blog post on the subject.