matplotlib
diff --git a/‎lib/mpl_toolkits/mplot3d/art3d.py
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+1Lines changed: 1 addition & 0 deletions b/‎lib/mpl_toolkits/mplot3d/art3d.py
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+1Lines changed: 1 addition & 0 deletions
diff --git a/‎lib/mpl_toolkits/mplot3d/axes3d.py
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+1-1Lines changed: 1 addition & 1 deletion b/‎lib/mpl_toolkits/mplot3d/axes3d.py
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+1-1Lines changed: 1 addition & 1 deletion
diff --git a/‎lib/mpl_toolkits/mplot3d/tests/test_axes3d.py
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@@ -90,6 +90,7 @@
 
 # ---------------------------------------------------------------------------- #
 
+
 def is_none(*args):
     for a in args:
         yield a is None
 
@@ -3047,7 +3047,7 @@ def hexbar3d(self, x, y, z, dxy='0.8', z0=0, **kwargs):
 
         # compute axes limits
         dx = bars.dx / 2
-        dy = bars.dy / 2 #/ np.sqrt(3)
+        dy = bars.dy / 2
         viewlim = np.array([(np.min(x) - dx, np.max(x) + dx),
                             (np.min(y) - dy, np.max(y) + dy),
                             (min(bars.z0, np.min(z)), np.max(z))])
 
@@ -21,7 +21,6 @@
 from matplotlib.text import Text
 
 import matplotlib.pyplot as plt
-import numpy as np
 
 
 mpl3d_image_comparison = functools.partial(