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

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* 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, 1 insertions, 2 deletions

diff --git a/Python/pywarpx/timestepper.py b/Python/pywarpx/timestepper.py
index f75bc8c2b..de341097a 100644
--- a/Python/pywarpx/timestepper.py
+++ b/Python/pywarpx/timestepper.py
@@ -12,8 +12,7 @@
 # Note that this is intended to be an example only and may not be functional. The
 # onestep routine as written here is out of date and is not consistent with WarpX::Evolve.
 
-from . import libwarpx
-from . import callbacks
+from . import callbacks, libwarpx
 
 
 class TimeStepper(object):