Cleanup

[rhyolight]

Will be working on handling HTTP errors and leftover half-downloaded packages in upcoming PR.

• 80 char line limit
• using string formatting instead of concats
• raising fatal exceptions

[rhyolight]

@Davidragazzi Don't merge this yet, I'm getting test failures...

∙ ./run_tests.sh -u
======================================================================== test session starts =========================================================================
platform darwin -- Python 2.7.6 -- pytest-2.4.2 -- /usr/bin/python
cachedir: /Users/mtaylor/nta/nupic/.cache
plugins: cov, xdist, cache
collecting 3 items / 1 errors
=============================================================================== ERRORS ===============================================================================
____________________________________________ ERROR collecting tests/unit/nupic/algorithms/anomaly_likelihood_jeff_test.py ____________________________________________
tests/unit/nupic/algorithms/anomaly_likelihood_jeff_test.py:36: in <module>
>   from nupic.algorithms import anomaly_likelihood as an
nupic/algorithms/__init__.py:28: in <module>
>   from nupic.bindings.math import NearestNeighbor
nupic/bindings/math.py:28: in <module>
>       _math = swig_import_helper()
nupic/bindings/math.py:20: in swig_import_helper
>           import _math
E           ImportError: No module named _math
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Interrupted: stopping after 1 failures !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
====================================================================== 1 error in 0.25 seconds =======================================================================

[david-ragazzi]

Oh sorry!!

[rhyolight]

No, is okay. The failures I'm seeing are also on your original PR. So no problem.

[david-ragazzi]

I'm on mobile right now! If you can wait until go home..