WIP: Add FairRoot envs part 2

[dennisklein]

No description provided.

[codecov]

Codecov Report

Merging #3 (be3d44b) into master (54847cd) will decrease coverage by 14.59%.
The diff coverage is 46.80%.

❗ Current head be3d44b differs from pull request most recent head 00bbcc2. Consider uploading reports for the commit 00bbcc2 to get more accurate results

@@             Coverage Diff              @@
##            master       #3       +/-   ##
============================================
- Coverage   100.00%   85.40%   -14.60%     
============================================
  Files            7        8        +1     
  Lines          140      185       +45     
  Branches         6       11        +5     
============================================
+ Hits           140      158       +18     
- Misses           0       25       +25     
- Partials         0        2        +2     

Impacted Files	Coverage Δ
lib/alfaci/subprocess.py	33.33% <33.33%> (ø)
lib/alfaci/repo.py	93.02% <88.88%> (-6.98%)	⬇️
lib/alfaci/__init__.py	100.00% <100.00%> (ø)
lib/alfaci/cli.py	100.00% <100.00%> (ø)

[lgtm-com]

This pull request introduces 4 alerts when merging 1307549 into 5980da9 - view on LGTM.com

new alerts:

• 3 for Module-level cyclic import
• 1 for Module is imported with 'import' and 'import from'

[lgtm-com]

This pull request introduces 4 alerts when merging 00bbcc2 into 5980da9 - view on LGTM.com

new alerts:

• 3 for Module-level cyclic import
• 1 for Module is imported with 'import' and 'import from'

[ChristianTackeGSI]

Maybe add a

    run = None

here

and later replace

-    if sys.version_info < (3, 7, 0):
+    if run is None: