move toolkits to mpl_toolkits, make mpl_toolkits a namespace package.

svn path=/trunk/matplotlib/; revision=4836

Author: Jeff Whitaker

API_CHANGES

@@ -1,3 +1,5 @@
+    toolkits must now be imported from mpl_toolkits (not matplotlib.toolkits)
+    
 TRANSFORMS REFACTORING
 
     The primary goal of this refactoring was to make it easier to

lib/matplotlib/toolkits/__init__.py

@@ -0,0 +1,4 @@
+try:
+    __import__('pkg_resources').declare_namespace(__name__)
+except ImportError:
+    pass # must not have setuptools

lib/mpl_toolkits/__init__.py

@@ -55,7 +55,8 @@
     'matplotlib',
     'matplotlib.backends',
     'matplotlib.projections',
-    'matplotlib.toolkits',
+#   'matplotlib.toolkits',
+    'mpl_toolkits',
     'matplotlib.numerix',
     'matplotlib.numerix.mlab',
     'matplotlib.numerix.ma',

lib/matplotlib/toolkits/exceltools.py lib/mpl_toolkits/exceltools.pylib/matplotlib/toolkits/exceltools.py renamed to lib/mpl_toolkits/exceltools.py

@@ -5,4 +5,4 @@
 from setuptools import setup
 execfile('setup.py',
          {'additional_params' :
-          {'namespace_packages' : ['matplotlib.toolkits']}})
+         {'namespace_packages' : ['mpl_toolkits']}})