Define unicode for Python 3

[cclauss]

Replaces #320

Also:

• avoid hard coding path to Python
• simplified name determination
• fixed isinstance() tests

Signed-off-by: Chris Clauss cclauss@bluewin.ch

[codecov-io]

Codecov Report

Merging #322 into master will decrease coverage by 0.03%. The diff coverage is 80%.

@@            Coverage Diff             @@
##           master     #322      +/-   ##
==========================================
- Coverage    88.9%   88.86%   -0.04%     
==========================================
  Files         115      115              
  Lines        4586     4588       +2     
==========================================
  Hits         4077     4077              
- Misses        509      511       +2

Impacted Files	Coverage Δ
...ler/plugins/environments/cloudsight_environment.py	87.09% <80%> (-6.01%)	:arrow_down:

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[sahilsuneja1]

Thanks!