matplotlib
diff --git a/‎examples/pylab_examples/arrow_demo.py
Copy file name to clipboardExpand all lines: examples/pylab_examples/arrow_demo.py
+3-5Lines changed: 3 additions & 5 deletions b/‎examples/pylab_examples/arrow_demo.py
Copy file name to clipboardExpand all lines: examples/pylab_examples/arrow_demo.py
+3-5Lines changed: 3 additions & 5 deletions
diff --git a/‎lib/matplotlib/mlab.py
Copy file name to clipboardExpand all lines: lib/matplotlib/mlab.py
-1Lines changed: 0 additions & 1 deletion b/‎lib/matplotlib/mlab.py
Copy file name to clipboardExpand all lines: lib/matplotlib/mlab.py
-1Lines changed: 0 additions & 1 deletion
@@ -119,8 +119,6 @@ def do_fontsize(k):
 
     arrow_h_offset = 0.25  # data coordinates, empirically determined
     max_arrow_length = 1 - 2*arrow_h_offset
-
-    max_arrow_width = max_arrow_width
     max_head_width = 2.5*max_arrow_width
     max_head_length = 2*max_arrow_width
     arrow_params = {'length_includes_head': True, 'shape': shape,
@@ -164,11 +162,11 @@ def draw_arrow(pair, alpha=alpha, ec=ec, labelcolor=labelcolor):
                                                       max_head_length)
         else:
             length = max_arrow_length
+        
         # set the transparency of the arrow
-        if display == 'alph':
+        if display == 'alpha':
             alpha = min(data[pair]/sf, alpha)
-        else:
-            alpha = alpha
+
         # set the width of the arrow
         if display == 'width':
             scale = data[pair]/sf
 
@@ -3881,7 +3881,6 @@ def cross_from_below(x, threshold):
 
     """
     x = np.asarray(x)
-    threshold = threshold
     ind = np.nonzero((x[:-1] < threshold) & (x[1:] >= threshold))[0]
     if len(ind):
         return ind+1