multiprocessing AssertionError on Windows with old Python versions

[Thomas Gilgenast]

On Windows, when installing from wheel and when running Python 2.7.10 or older, hitting any code path that involves @parallelize_regions (basically everything) triggers an infinite loop of errors that include this:

  File "C:\Python27\Lib\multiprocessing\forking.py", line 488, in prepare
    assert main_name not in sys.modules, main_name
AssertionError: __main__

This is actually a bug in Python that was fixed in 2.7.11.

The current workarounds are:

1. install Python 2.7.11+
2. install from a tarball or git

No fix is planned within lib5c.

[Thomas Gilgenast]

as of 18a7f6e this is now reflected in the install docs

‌

[Thomas Gilgenast]

[docs] fixes #64

also replaces the explicit list of python dependencies with a reference to setup.py

also specifies that we require python 2.7.11+, see #36 for why

→ <<cset 18a7f6e08d6d>>