Correct docstring and ensure PEP8 compliance.

mpltools/special/hinton.py

@@ -6,6 +6,7 @@
 
 __all__ = ['hinton']
 
+
 # TOOD: Add yutils.mpl._coll to mpltools and use that for square collection.
 class SquareCollection(collections.RegularPolyCollection):
     """Return a collection of squares."""
@@ -45,8 +46,8 @@ def hinton(inarray, max_value=None, use_default_ticks=True):
     max_value : float
         Any *absolute* value larger than `max_value` will be represented by a
         unit square.
-    ticklabels : array
-        Array of strings to use as label. Length should match inarray.
+    use_default_ticks: boolean
+        Disable tick-generation and generate them outside this function.
     """
 
     ax = plt.gca()
@@ -79,6 +80,7 @@ def hinton(inarray, max_value=None, use_default_ticks=True):
         ax.xaxis.set_major_locator(IndexLocator())
         ax.yaxis.set_major_locator(IndexLocator())
 
+
 class IndexLocator(ticker.Locator):
 
     def __init__(self, max_ticks=10):
@@ -91,4 +93,4 @@ def __call__(self):
             step = 1
         else:
             step = np.ceil(dmax / self.max_ticks)
-        return self.raise_if_exceeds(np.arange(0, dmax, step))
+        return self.raise_if_exceeds(np.arange(0, dmax, step))