cleaning up code. Added tests and test images

Author: sfroid

doc/devel/coding_guide.rst

@@ -277,8 +277,16 @@ Writing a new pyplot function
 -----------------------------
 
 A large portion of the pyplot interface is automatically generated by the
-`boilerplate.py` script (in the root of the source tree).  To add or remove
+`boilerplate.py` script (in the root of the source tree). To add or remove
 a plotting method from pyplot, edit the appropriate list in `boilerplate.py`
 and then run the script which will update the content in
 `lib/matplotlib/pyplot.py`. Both the changes in `boilerplate.py` and
 `lib/matplotlib/pyplot.py` should be checked into the repository.
+
+Note: boilerplate.py looks for changes in the installed version of matplotlib
+and not the source tree. If you expect the pyplot.py file to show your new
+changes, but they are missing, this might be the cause.
+
+Install your new files by running `python setup.py build` and `python setup.py
+install` followed by `python boilerplate.py`. The new pyplot.py file should now
+have the latest changes.

lib/matplotlib/axes/_axes.py

@@ -2457,8 +2457,10 @@ def pie(self, x, explode=None, labels=None, colors=None,
         else:
             theta1 = startangle / 360.0
 
-        wedgeprops = {} if (wedgeprops is None) else wedgeprops
-        textprops = {} if (textprops is None) else textprops
+        if wedgeprops is None:
+            wedgeprops = {}
+        if textprops is None:
+            textprops = {}
 
         texts = []
         slices = []

lib/matplotlib/pyplot.py

@@ -3046,7 +3046,8 @@ def phase_spectrum(x, Fs=None, Fc=None, window=None, pad_to=None, sides=None,
 @_autogen_docstring(Axes.pie)
 def pie(x, explode=None, labels=None, colors=None, autopct=None,
         pctdistance=0.6, shadow=False, labeldistance=1.1, startangle=None,
-        radius=None, counterclock=True, linewidth=None, hold=None):
+        radius=None, counterclock=True, wedgeprops=None, textprops=None,
+        hold=None):
     ax = gca()
     # allow callers to override the hold state by passing hold=True|False
     washold = ax.ishold()
@@ -3058,7 +3059,7 @@ def pie(x, explode=None, labels=None, colors=None, autopct=None,
                      autopct=autopct, pctdistance=pctdistance, shadow=shadow,
                      labeldistance=labeldistance, startangle=startangle,
                      radius=radius, counterclock=counterclock,
-                     linewidth=linewidth)
+                     wedgeprops=wedgeprops, textprops=textprops)
         draw_if_interactive()
     finally:
         ax.hold(washold)