Install failure with 1.8.1 on Centos 7

smart_open 1.8.1 fails to install on Centos 7:

Collecting smart_open
  Downloading https://files.pythonhosted.org/packages/27/90/39f18b9258cd76e98df581213a2b7a393b426821e920f1e820e525f54ed4/smart_open-1.8.1.tar.gz (48kB)
    100% |████████████████████████████████| 51kB 7.4MB/s 
    Complete output from command python setup.py egg_info:
    error in smart_open setup command: 'install_requires' must be a string or list of strings containing valid project/version requirement specifiers

It looks like the addition of ‘backports.lzma;python_version<“3.3”’ is the only substantive change to setup.py since 1.8.0. According to the setuptools docs, that feature was added in 20.5 but Centos 7 ships with 0.9.8.

Not sure what to do here but I guess that setup.py should have an install_requires on setuptools>=20.5 so at least it’s clear what’s going on. Might want to also bump the major version to indicate a back-compatibility change.

[mpenkov]

Fixed by #282

[piskvorky]

Ah I see you guys are already on it, on #282. Nice!