pre-commit: Python imports (#2686)

* pre-commit: Python imports

Add two new Python rules to:
- remove unused imports
- sort imports according to PEP8

* pre-commit: Python imports

Add two new Python rules to:
- remove unused imports
- sort imports according to PEP8

`.editorconfig`: isort options

https://github.com/PyCQA/isort/wiki/isort-Settings

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* move import os (mpl)

* move import yt (mpl)

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Cleanup around matplotlib.use

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Cleaning: double np and lib

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

1 files changed, 9 insertions, 4 deletions

diff --git a/Examples/Tests/RepellingParticles/analysis_repelling.py b/Examples/Tests/RepellingParticles/analysis_repelling.py
index e9df1e4b2..0aa3ed53d 100755
--- a/Examples/Tests/RepellingParticles/analysis_repelling.py
+++ b/Examples/Tests/RepellingParticles/analysis_repelling.py
@@ -22,12 +22,16 @@ w is the weight of the individual macroparticles
 d is the distance between them
 beta is the velocity normalized by the speed of light
 """
-import numpy as np
-from scipy.constants import m_e, c, physical_constants
-import sys, re, os
-import yt
 import glob
+import os
+import re
+import sys
+
 import matplotlib.pyplot as plt
+import numpy as np
+from scipy.constants import c, m_e, physical_constants
+import yt
+
 yt.funcs.mylog.setLevel(0)
 
 # Check plotfile name specified in command line
@@ -74,5 +78,6 @@ assert np.allclose( -beta2[1:], beta_th[1:], atol=0.01  )
 # Run checksum regression test
 sys.path.insert(1, '../../../../warpx/Regression/Checksum/')
 import checksumAPI
+
 test_name = os.path.split(os.getcwd())[1]
 checksumAPI.evaluate_checksum(test_name, last_filename)