Installation error: 'install_requires' must be a string or list of strings containing valid project/version requirement specifiers

[rominf]

I'm trying to install pendulum on openSUSE 42.3 (Python 3.4.6). I have following error:

pip install --user pendulum
Collecting pendulum
  Using cached pendulum-1.4.4.tar.gz
    Complete output from command python setup.py egg_info:
    /usr/lib64/python3.4/distutils/dist.py:260: UserWarning: Unknown distribution option: 'python_requires'
      warnings.warn(msg)
    error in pendulum setup command: 'install_requires' must be a string or list of strings containing valid project/version requirement specifiers; Expected version spec in python-dateutil (>=2.6.0.0,<3.0.0.0) at  (>=2.6.0.0,<3.0.0.0)
    
    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-gadrpgag/pendulum/
You are using pip version 9.0.1, however version 9.0.3 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

[sdispater]

It seems that older version of distutils do not support this requirement format.

I will change it and make a new release.

[sdispater]

I just tested and I can't reproduce this error both on MacOS and Ubuntu. So it may be caused by an old setuptools version that comes in openSUSE 42.3.

You might want to upgrade setuptools (pip install setuptools -U) for now while I try to figure out a way to be compatible with older versions.

I will also build wheels for Python 3.4 from now on.

[7yl4r]

I ran into this and resolved it by upgrading setuptools as suggested from setuptools-19.2 to setuptools-39.1.0, thanks.

[LuCatIsFun]

I just tested and I can't reproduce this error both on MacOS and Ubuntu. So it may be caused by an old setuptools version that comes in openSUSE 42.3.

You might want to upgrade setuptools (pip install setuptools -U) for now while I try to figure out a way to be compatible with older versions.

I will also build wheels for Python 3.4 from now on.

Thanks,it works

[hyBio]

nice