Add style check in precommit; Minor tidy-ups

[yannikschaelte]

No description provided.

[codecov-commenter]

Codecov Report

Merging #662 (0c4a2ed) into develop (173f7d5) will decrease coverage by 0.15%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           develop     #662      +/-   ##
===========================================
- Coverage    89.79%   89.64%   -0.16%     
===========================================
  Files           94       94              
  Lines         5997     5997              
===========================================
- Hits          5385     5376       -9     
- Misses         612      621       +9     

Impacted Files	Coverage Δ
pypesto/objective/amici.py	83.67% <100.00%> (ø)
pypesto/objective/base.py	87.71% <100.00%> (ø)
pypesto/objective/function.py	87.96% <100.00%> (ø)
pypesto/objective/amici_util.py	75.43% <0.00%> (-8.78%)	⬇️
pypesto/objective/amici_calculator.py	91.66% <0.00%> (-1.67%)	⬇️
pypesto/engine/multi_process.py	100.00% <0.00%> (+7.40%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 173f7d5...0c4a2ed. Read the comment docs.