Do not import deprecate decorator on the top namespace

Author: sinhrks

pandas/__init__.py

@@ -50,12 +50,13 @@
                                 merge_ordered, merge_asof)
 from pandas.tools.pivot import pivot_table, crosstab
 
-# deprecate tools.plotting, and directly imported scatter_matrix
+# deprecate tools.plotting, and scatter_matrix on the top namespace
 import pandas.tools.plotting
 from pandas.plotting import plot_params
-from pandas.util.decorators import deprecate
-scatter_matrix = deprecate('pandas.scatter_matrix', pandas.plotting.scatter_matrix,
-                           'pandas.plotting.scatter_matrix')
+# do not import deprecate to top namespace
+scatter_matrix = pandas.util.decorators.deprecate(
+    'pandas.scatter_matrix', pandas.plotting.scatter_matrix,
+    'pandas.plotting.scatter_matrix')
 
 from pandas.tools.tile import cut, qcut
 from pandas.tools.util import to_numeric