STY: trivial style changes

ran black

Author: tacaswell

mpl_gui/tests/conftest.py

@@ -7,6 +7,7 @@
 import mpl_gui
 import sys
 
+
 def pytest_configure(config):
     # config is initialized here rather than in pytest.ini so that `pytest
     # --pyargs matplotlib` (which would not find pytest.ini) works.  The only

mpl_gui/tests/test_examples.py

@@ -8,7 +8,6 @@
 
 
 def test_no_pyplot():
-
     assert sys.modules.get("matplotlib.pyplot", None) is None
 
 
@@ -75,7 +74,6 @@ class TestException(Exception):
     if forgiving:
         assert "start_event_loop" in fig.canvas.call_info
     else:
-
         assert isinstance(fig.canvas, FigureCanvasBase)
 
 
@@ -144,10 +142,10 @@ def test_change_labels():
 
 def test_close_one_at_a_time():
     fr = mg.FigureRegistry(block=False)
-    fig1 = fr.figure(label='a')
-    fig2 = fr.figure(label='b')
-    fig3 = fr.figure(label='c')
-    fr.figure(label='d')
+    fig1 = fr.figure(label="a")
+    fig2 = fr.figure(label="b")
+    fig3 = fr.figure(label="c")
+    fr.figure(label="d")
     assert len(fr.figures) == 4
 
     fr.close(fig1)
@@ -164,5 +162,5 @@ def test_close_one_at_a_time():
     assert len(fr.figures) == 1
     assert fig3 not in fr.figures
 
-    fr.close('all')
+    fr.close("all")
     assert len(fr.figures) == 0