added pie labeling example (rev2)

ImportanceOfBeingErnest · ImportanceOfBeingErnest · commit f4b4dd11496b · 2018-04-05T01:25:15.000+02:00
diff --git a/examples/pie_and_polar_charts/pie_and_donut_labels.py b/examples/pie_and_polar_charts/pie_and_donut_labels.py
@@ -22,7 +22,7 @@
 fig.subplots_adjust(top=0.92, bottom=0.08)
 plt.setp((ax, ax2), aspect="equal")
 
-###############################################################################
+
 # Now it's time for the pie. Starting with a pie recipe, we create the data
 # and a list of labels from it.
 #
@@ -69,7 +69,6 @@ def func(pct, allvals):
 ax.set_title("Matplotlib bakery: A pie")
 
 
-###############################################################################
 # Now it's time for the donut. Starting with a donut recipe, we transcribe
 # the data to numbers (converting 1 egg to 50 g), and directly plot the pie.
 # The pie? Wait... it's going to be donut, is it not?
@@ -113,10 +112,10 @@ def func(pct, allvals):
     x = np.cos(np.deg2rad(ang))
     horizontalalignment = ["", "left", "right"][int(np.sign(x))]
     connectionstyle = "angle,angleA=0,angleB={}".format(ang)
-    kw["arrowprops"].update({"connectionstyle":connectionstyle})
+    kw["arrowprops"].update({"connectionstyle": connectionstyle})
     ax2.annotate(recipe[i], xy=(x, y), xytext=(1.35*np.sign(x), 1.4*y),
                  horizontalalignment=horizontalalignment, **kw)
 
 ax2.set_title("Matplotlib bakery: A donut")
 
-plt.show()
+plt.show()
