BUG: Whoops. Will squash this.

madphysicist · madphysicist · commit a6c2775b929b · 2016-03-31T12:54:54.000-04:00
diff --git a/lib/matplotlib/ticker.py b/lib/matplotlib/ticker.py
@@ -1017,7 +1017,7 @@ def __call__(self, x, pos=None):
         xmin, xmax = self.axis.get_view_interval()
         d = abs(xmax - xmin)
 
-        return self.fix_minus(format_pct(x, d))
+        return self.fix_minus(self.format_pct(x, d))
 
     def format_pct(self, x, d):
         """
@@ -1046,16 +1046,19 @@ def format_pct(self, x, d):
         """
         x = self.convert_to_pct(x)
         if self.decimals is None:
-            # Luckily Python's built-in `ceil` rounds to +inf, not away
-            # from zero. This is very important since the equation for
-            # `decimals` starts out as `d > 0.5 * 10**(2 - decimals)`
-            # and ends up with `decimals > 2 - log10(2 * d)`.
-            d = self.convert_to_pct(d)  # d is a difference, so this works
-            decimals = math.ceil(2.0 - math.log10(2.0 * d))
-            if decimals > 5:
-                decimals = 5
-            elif decimals < 0:
+            if d <= 0:
                 decimals = 0
+            else:
+                # Luckily Python's built-in `ceil` rounds to +inf, not away
+                # from zero. This is very important since the equation for
+                # `decimals` starts out as `d > 0.5 * 10**(2 - decimals)`
+                # and ends up with `decimals > 2 - log10(2 * d)`.
+                d = self.convert_to_pct(d)  # d is a difference, so this works
+                decimals = math.ceil(2.0 - math.log10(2.0 * d))
+                if decimals > 5:
+                    decimals = 5
+                elif decimals < 0:
+                    decimals = 0
         else:
             decimals = self.decimals
         s = '{x:0.{decimals}f}'.format(x=x, decimals=int(decimals))
