Scatter event fixes

Author: SylvainCorlay

bqplot/marks.py

@@ -522,17 +522,16 @@ class Scatter(Mark):
     update_on_move = Bool(False, sync=True)
 
     def __init__(self, **kwargs):
-        super(Scatter, self).__init__(**kwargs)
         self._drag_end_handlers = CallbackDispatcher()
-        self.on_msg(self._handle_custom_msgs)
+        super(Scatter, self).__init__(**kwargs)
 
     def on_drag_end(self, callback, remove=False):
         self._drag_end_handlers.register_callback(callback, remove=remove)
 
     def _handle_custom_msgs(self, _, content, buffers=None):
-        super(Scatter, self)._handle_custom_msgs(self, content)
         if content.get('event', '') == 'drag_end':
             self._drag_end_handlers(self, content)
+        super(Scatter, self)._handle_custom_msgs(self, content)
 
     _view_name = Unicode('Scatter', sync=True)
     _view_module = Unicode('nbextensions/bqplot/Scatter', sync=True)

docs/source/conf.py

@@ -42,19 +42,14 @@
     'sphinx.ext.autosummary',
     'sphinx.ext.viewcode',
     'sphinx.ext.napoleon',
-#    'numpydoc',
 ]
 
 autosummary_generate = True
-# numpydoc_show_class_members = False
-#autodoc_default_flags = ['members', 'no-inherited-members', 'show-inheritance']
 
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']
 
 # The suffix(es) of source filenames.
-# You can specify multiple suffix as a list of string:
-# source_suffix = ['.rst', '.md']
 source_suffix = '.rst'
 
 # Add dev disclaimer.
@@ -76,7 +71,7 @@
 # General information about the project.
 project = u'bqplot'
 copyright = u'2015, Bloomberg LP'
-author= u'The BQplot Development Team'
+author = u'The BQplot Development Team'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the