From 3a7a9f4bc4c446e981267eb159d78a2ef42ed384 Mon Sep 17 00:00:00 2001
From: Tim Hoffmann <2836374+timhoffm@users.noreply.github.com>
Date: Fri, 21 Sep 2018 00:53:49 +0200
Subject: [PATCH] Remove some unused variables and imports

---
 examples/text_labels_and_annotations/arrow_demo.py  | 1 -
 examples/user_interfaces/embedding_in_wx3_sgskip.py | 1 -
 examples/user_interfaces/toolmanager_sgskip.py      | 1 -
 setupext.py                                         | 1 -
 tools/triage_tests.py                               | 1 -
 tutorials/intermediate/constrainedlayout_guide.py   | 5 +----
 tutorials/introductory/images.py                    | 1 -
 7 files changed, 1 insertion(+), 10 deletions(-)

diff --git a/examples/text_labels_and_annotations/arrow_demo.py b/examples/text_labels_and_annotations/arrow_demo.py
index 2232579e529a..c76bf4e5962d 100644
--- a/examples/text_labels_and_annotations/arrow_demo.py
+++ b/examples/text_labels_and_annotations/arrow_demo.py
@@ -125,7 +125,6 @@ def do_fontsize(k):
     max_head_length = 2 * max_arrow_width
     arrow_params = {'length_includes_head': True, 'shape': shape,
                     'head_starts_at_zero': head_starts_at_zero}
-    ax = plt.gca()
     sf = 0.6  # max arrow size represents this in data coords
 
     d = (r2 / 2 + arrow_h_offset - 0.5) / r2  # distance for diags
diff --git a/examples/user_interfaces/embedding_in_wx3_sgskip.py b/examples/user_interfaces/embedding_in_wx3_sgskip.py
index fcb69f0a910b..9136cd46c20d 100644
--- a/examples/user_interfaces/embedding_in_wx3_sgskip.py
+++ b/examples/user_interfaces/embedding_in_wx3_sgskip.py
@@ -131,7 +131,6 @@ def OnInit(self):
         bang_button.Bind(wx.EVT_BUTTON, self.OnBang)
 
         # final setup ------------------
-        sizer = self.panel.GetSizer()
         self.frame.Show(1)
 
         self.SetTopWindow(self.frame)
diff --git a/examples/user_interfaces/toolmanager_sgskip.py b/examples/user_interfaces/toolmanager_sgskip.py
index f1fd7c6146bc..761ffe5edca7 100644
--- a/examples/user_interfaces/toolmanager_sgskip.py
+++ b/examples/user_interfaces/toolmanager_sgskip.py
@@ -61,7 +61,6 @@ def disable(self, *args):
         self.set_lines_visibility(False)
 
     def set_lines_visibility(self, state):
-        gr_lines = []
         for ax in self.figure.get_axes():
             for line in ax.get_lines():
                 if line.get_gid() == self.gid:
diff --git a/setupext.py b/setupext.py
index 7bf7dbfebc5a..f43b5f92f2c1 100644
--- a/setupext.py
+++ b/setupext.py
@@ -5,7 +5,6 @@
 import glob
 import hashlib
 import importlib
-import multiprocessing
 import os
 import pathlib
 import platform
diff --git a/tools/triage_tests.py b/tools/triage_tests.py
index 42234632d8f6..9274b58904be 100644
--- a/tools/triage_tests.py
+++ b/tools/triage_tests.py
@@ -102,7 +102,6 @@ def eventFilter(self, receiver, event):
             self.window.keyPressEvent(event)
             return True
         else:
-            return False
             return super().eventFilter(receiver, event)
 
 
diff --git a/tutorials/intermediate/constrainedlayout_guide.py b/tutorials/intermediate/constrainedlayout_guide.py
index 80f17e384ddf..4d007b50a051 100644
--- a/tutorials/intermediate/constrainedlayout_guide.py
+++ b/tutorials/intermediate/constrainedlayout_guide.py
@@ -49,15 +49,12 @@
 
 # sphinx_gallery_thumbnail_number = 18
 
-#import matplotlib
-#matplotlib.use('Qt5Agg')
 
 import matplotlib.pyplot as plt
-import numpy as np
 import matplotlib.colors as mcolors
 import matplotlib.gridspec as gridspec
+import numpy as np
 
-import matplotlib._layoutbox as layoutbox
 
 plt.rcParams['savefig.facecolor'] = "0.8"
 plt.rcParams['figure.figsize'] = 4.5, 4.
diff --git a/tutorials/introductory/images.py b/tutorials/introductory/images.py
index 007cffcc7172..423bf22da30e 100644
--- a/tutorials/introductory/images.py
+++ b/tutorials/introductory/images.py
@@ -49,7 +49,6 @@
 
 import matplotlib.pyplot as plt
 import matplotlib.image as mpimg
-import numpy as np
 
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