Rely on builtin round() instead of manual rounding.

Author: anntzer

lib/matplotlib/backends/backend_wx.py

@@ -283,7 +283,7 @@ def get_wx_font(self, s, prop):
         # Font colour is determined by the active wx.Pen
         # TODO: It may be wise to cache font information
         self.fontd[key] = font = wx.Font(  # Cache the font and gc.
-            pointSize=int(size + 0.5),
+            pointSize=round(size),
             family=self.fontnames.get(prop.get_name(), wx.ROMAN),
             style=self.fontangles[prop.get_style()],
             weight=self.fontweights[prop.get_weight()])

lib/matplotlib/streamplot.py

@@ -285,8 +285,7 @@ def __init__(self, grid, mask):
 
     def grid2mask(self, xi, yi):
         """Return nearest space in mask-coords from given grid-coords."""
-        return (int(xi * self.x_grid2mask + 0.5),
-                int(yi * self.y_grid2mask + 0.5))
+        return round(xi * self.x_grid2mask), round(yi * self.y_grid2mask)
 
     def mask2grid(self, xm, ym):
         return xm * self.x_mask2grid, ym * self.y_mask2grid