setup.py imports six module which is not installed install time

[gijzelaerr]

Collecting meqtrees-cattery>=1.5.1 (from DDFacet==0.4.0.0)
  Downloading https://files.pythonhosted.org/packages/fd/81/147f756ddab3183a13ed5e51edf61a372aebec0b50ebb12312b90b23d225/meqtrees_cattery-1.6.0.tar.gz (369kB)
    100% |████████████████████████████████| 378kB 9.1MB/s 
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-install-5cpIxc/meqtrees-cattery/setup.py", line 6, in <module>
        import six
    ImportError: No module named six

https://github.com/ska-sa/meqtrees-cattery/commit/dcf2ab34b0c2f9faf0d4c48850751c7c7b34508e#r32196889

[gijzelaerr]

This gives errors when you try to install cattery in an empty virtualenv, since six is not installed yet. Best ist just no not include any dependencies in your setup.py file for this reason. What you try to do can be solved using extra restrictions in your install_requires statement:

https://stackoverflow.com/questions/21082091/install-requires-based-on-python-version

[bennahugo]

ok will include a fix in the next round of PRs, busy py3ing timba

[bennahugo]

fixed