python library 'shellingham' fails to build

[moritzschaefer]

Describe the bug
After updating nixpkgs, my environment doesn't build (nixos-rebuild) anymore, because python3-shellingham-1.3.2 fails to build.

To Reproduce
Steps to reproduce the behavior:

1. Checkout nixpgs/master
2. Run nix-build -A python37Packages.shellingham
3. Observe fail

unpacking source archive /nix/store/ls5q23mg5w47dlwy67ahjccwsvwgxa7y-shellingham-1.3.2.tar.gz
source root is shellingham-1.3.2
setting SOURCE_DATE_EPOCH to timestamp 1581499529 of file shellingham-1.3.2/setup.cfg
patching sources
configuring
no configure script, doing nothing
building
Executing setuptoolsBuildPhase
Traceback (most recent call last):
  File "nix_run_setup", line 8, in <module>
    exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\\r\\n', '\\n'), __file__, 'exec'))
  File "/nix/store/q732h09azy7lf0j30bnnhdl15p4rxpdy-python3-3.7.7/lib/python3.7/tokenize.py", line 447, in open
    buffer = _builtin_open(filename, 'rb')
FileNotFoundError: [Errno 2] No such file or directory: 'setup.py'
builder for '/nix/store/3f22id45sk2n5k7y6vs9bxf0m5mw5lbb-python3.7-shellingham-1.3.2.drv' failed with exit code 1

Expected behavior
Builds fine, no error

Notify maintainers
@mbode

Metadata

• system: "x86_64-linux"
• host os: Linux 5.4.39, NixOS, 20.09.20200515.bc9631c (Nightingale)
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.4pre20200501_941f952
• channels(root): "nixos-20.09pre225264.683c68232e9"
• channels(moritz): "home-manager"
• nixpkgs: /nix/store/86s47nrd5hsvcw9pc1cii59ysym46a7j-source

[moritzschaefer]

The tar-ball for version 1.3.2
(https://pypi.org/project/shellingham/#files)

indeed lacks the setup.py file, while 1.3.1 still has it.

Consequently, reverting the "shellingham 1.3.1 -> 1.3.2 commit" (e36caa1), fixes the issue and shellingham builds fine again.

@FRidh (upgroad commiter), did you test the update of this package and did it work for you?

[FRidh]

nope that was an automated update

[moritzschaefer]

Ok, I'll post a PR then to downgrade

[jonringer]

fixed on master