Fixed code analysis

[david-zwicker]

• fixed coverage analysis
• fixed LGTM configuration
• renamed some logger.warn to logger.warning
• fixed minor bugs

[codecov[bot]]

Codecov Report

Merging #281 (d1bfc25) into master (6cfc98d) will increase coverage by 0.21%. The diff coverage is 88.08%.

@@            Coverage Diff             @@
##           master     #281      +/-   ##
==========================================
+ Coverage   87.51%   87.72%   +0.21%     
==========================================
  Files          68       70       +2     
  Lines        9998    10334     +336     
==========================================
+ Hits         8750     9066     +316     
- Misses       1248     1268      +20     

Flag	Coverage Δ
unittests	87.72% <88.08%> (+0.21%)	:arrow_up:

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pde/grids/boundaries/axes.py	94.65% <ø> (+1.27%)	:arrow_up:
pde/pdes/swift_hohenberg.py	100.00% <ø> (ø)
pde/visualization/movies.py	90.78% <ø> (+0.78%)	:arrow_up:
pde/solvers/__init__.py	84.61% <50.00%> (-15.39%)	:arrow_down:
pde/fields/collection.py	90.84% <60.00%> (+1.63%)	:arrow_up:
pde/tools/mpi.py	60.00% <60.00%> (ø)
pde/solvers/implicit.py	92.18% <66.66%> (+0.12%)	:arrow_up:
pde/trackers/interrupts.py	90.09% <66.66%> (-0.66%)	:arrow_down:
pde/grids/boundaries/local.py	84.60% <67.39%> (-0.73%)	:arrow_down:
pde/pdes/base.py	80.74% <77.77%> (+0.10%)	:arrow_up:
... and 40 more

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[lgtm-com[bot]]

This pull request fixes 1 alert when merging d1bfc258b53cf38e1771657ddb573e9d12d14cbc into 94c8f5aae6d2b0303f595923fc67b33f99eaabd3 - view on LGTM.com

fixed alerts:

• 1 for Unused import