Error when running pypi2nix command, for mayan-edms

[flyfloh]

I'm trying to generate a nix expression for mayan-edms. I get the output below.

Description

<detailed description of error # Traceback

% pypi2nix --version
% pypi2nix -e mayan-edms
Collecting mayan-edms
  Downloading https://files.pythonhosted.org/packages/f6/5c/65799a63524ec069b70b3946790153891636afef4ae92c6ec9dfaa5e0b6d/mayan-edms-3.2.10.tar.gz (2.7MB)
  Saved /tmp/tmps_9h5az5/download/mayan-edms-3.2.10.tar.gz
Collecting django==1.11.25
  Downloading https://files.pythonhosted.org/packages/8d/6e/ca1eaf0a03e7921b020e9a8bd2e9ec441f6d958050be8571951e5556cf77/Django-1.11.25.tar.gz (7.8MB)
  Saved /tmp/tmps_9h5az5/download/Django-1.11.25.tar.gz
Collecting Pillow==6.2.1
  Downloading https://files.pythonhosted.org/packages/5b/bb/cdc8086db1f15d0664dd22a62c69613cdc00f1dd430b5b19df1bea83f2a3/Pillow-6.2.1.tar.gz (37.7MB)
  Saved /tmp/tmps_9h5az5/download/Pillow-6.2.1.tar.gz
Collecting PyPDF2==1.26.0
  Downloading https://files.pythonhosted.org/packages/b4/01/68fcc0d43daf4c6bdbc6b33cc3f77bda531c86b174cac56ef0ffdb96faab/PyPDF2-1.26.0.tar.gz (77kB)
  Saved /tmp/tmps_9h5az5/download/PyPDF2-1.26.0.tar.gz
Collecting PyYAML==5.1.2
  Downloading https://files.pythonhosted.org/packages/e3/e8/b3212641ee2718d556df0f23f78de8303f068fe29cdaa7a91018849582fe/PyYAML-5.1.2.tar.gz (265kB)
  Saved /tmp/tmps_9h5az5/download/PyYAML-5.1.2.tar.gz
Collecting celery==3.1.26.post2
  Downloading https://files.pythonhosted.org/packages/33/f3/c6f66e311dd0be1eedcf6d256e4138caca537d81c1b903d4ab3699ada889/celery-3.1.26.post2.tar.gz (1.3MB)
  Saved /tmp/tmps_9h5az5/download/celery-3.1.26.post2.tar.gz
Collecting django-activity-stream==0.7.0
  Downloading https://files.pythonhosted.org/packages/2c/0c/a6cce7dc4f26e3615ae684a419cf6e02434e1e4dbaaf50d9bd5b1340a840/django-activity-stream-0.7.0.tar.gz
  Saved /tmp/tmps_9h5az5/download/django-activity-stream-0.7.0.tar.gz
Collecting django-celery==3.2.1
  Downloading https://files.pythonhosted.org/packages/18/8a/0acc6ab53749005802587acee49b658504f9842e9f6230da73422ad90f47/django-celery-3.2.1.tar.gz (91kB)
  Saved /tmp/tmps_9h5az5/download/django-celery-3.2.1.tar.gz
Collecting django-colorful==1.3
  Downloading https://files.pythonhosted.org/packages/b7/9f/3e19b35b6d85ec5b6cffde8533b6a0fca5d435b278c6537428c32e1ab6b5/django-colorful-1.3.tar.gz
  Saved /tmp/tmps_9h5az5/download/django-colorful-1.3.tar.gz

Right before I also get the following output (which was not included in the automatic bug report):

    ERROR: Command errored out with exit status 1:
     command: /nix/store/5bvmw38vphs377bswcyb7zkji523pf5l-python3-3.7.5-env/bin/python3.7 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/tmps_9h5az5/pip-download-zv7acihk/django-colorful/setup.py'"'"'; __file__='"'"'/tmp/tmps_9h5az5/pip-download-zv7acihk/django-colorful/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/tmps_9h5az5/pip-download-zv7acihk/django-colorful/pip-egg-info
         cwd: /tmp/tmps_9h5az5/pip-download-zv7acihk/django-colorful/
    Complete output (7 lines):
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/tmps_9h5az5/pip-download-zv7acihk/django-colorful/setup.py", line 4, in <module>
        import colorful
      File "/tmp/tmps_9h5az5/pip-download-zv7acihk/django-colorful/colorful/__init__.py", line 3, in <module>
        from django.utils import version
    ModuleNotFoundError: No module named 'django'
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

[seppeljordan]

To effectively assist you in solving the issue I need some more information from you:

1. What OS are you using?
2. Which version of pypi2nix are you using?
3. Did you install pypi2nix from nixpkgs or by installing it directly from github?
4. Run pypi2nix with the -v flag and and post the output either here or to a pastebin.