conserve kwargs order.

Manuel Jung · Manuel Jung · commit ac00e8dfe7bf · 2016-11-21T08:18:08.000+01:00
diff --git a/lib/matplotlib/axes/_axes.py b/lib/matplotlib/axes/_axes.py
@@ -4605,8 +4605,9 @@ def stackplot(self, x, *args, **kwargs):
                          label_namer=None)
     def streamplot(self, x, y, u, v, density=1, linewidth=None, color=None,
                    cmap=None, norm=None, arrowsize=1, arrowstyle='-|>',
-                   minlength=0.1, maxlength=4.0, transform=None, zorder=None,
-                   start_points=None, integration_direction='both'):
+                   minlength=0.1, transform=None, zorder=None,
+                   start_points=None, maxlength=4.0,
+                   integration_direction='both'):
         if not self._hold:
             self.cla()
         stream_container = mstream.streamplot(
@@ -4619,11 +4620,11 @@ def streamplot(self, x, y, u, v, density=1, linewidth=None, color=None,
             arrowsize=arrowsize,
             arrowstyle=arrowstyle,
             minlength=minlength,
-            maxlength=maxlength,
             start_points=start_points,
             transform=transform,
-            integration_direction=integration_direction,
-            zorder=zorder)
+            zorder=zorder,
+            maxlength=maxlength,
+            integration_direction=integration_direction)
         return stream_container
     streamplot.__doc__ = mstream.streamplot.__doc__
 
diff --git a/lib/matplotlib/streamplot.py b/lib/matplotlib/streamplot.py
@@ -22,8 +22,8 @@
 
 def streamplot(axes, x, y, u, v, density=1, linewidth=None, color=None,
                cmap=None, norm=None, arrowsize=1, arrowstyle='-|>',
-               minlength=0.1, maxlength=4.0, transform=None, zorder=None,
-               start_points=None, integration_direction='both'):
+               minlength=0.1, transform=None, zorder=None, start_points=None,
+               maxlength=4.0, integration_direction='both'):
     """Draws streamlines of a vector flow.
 
     *x*, *y* : 1d arrays
@@ -101,8 +101,8 @@ def streamplot(axes, x, y, u, v, density=1, linewidth=None, color=None,
     arrow_kw = dict(arrowstyle=arrowstyle, mutation_scale=10 * arrowsize)
 
     if integration_direction not in ['both', 'forward', 'backward']:
-        errstr = "Integration direction " \
-                 "'%s' not recognised." % integration_direction
+        errstr = ("Integration direction '%s' not recognised." %
+          integration_direction)
         errstr += "Expected 'both', 'forward' or 'backward'."
         raise ValueError(errstr)
 
