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

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

tests/conftest.py

@@ -1,6 +1,7 @@
 import pytest
 from unittest.mock import patch, MagicMock
 
+
 @pytest.fixture
 def mock_ipython():
     with patch("IPython.get_ipython") as mock_get_ipython:

tests/test_draw.py

@@ -4,7 +4,6 @@
 import numpy as np
 from numpy.testing import assert_allclose
 import contextlib
-from unittest.mock import patch, MagicMock
 
 mpl = pytest.importorskip("matplotlib")
 plt = pytest.importorskip("matplotlib.pyplot")
@@ -303,8 +302,8 @@ def __call__(self, a, b):
         mw.fit_button.click()
     assert_allclose(m.values, (100, -100), atol=1e-5)
     # this should trigger an exception
-    #plot.raises = True
-    #with plot.assert_call():
+    # plot.raises = True
+    # with plot.assert_call():
     #    mw.fit_button.click()