diff -Nru vincent-0.4.1~ppa6~revno/debian/bzr-builder.manifest vincent-0.4.1~ppa6~revno/debian/bzr-builder.manifest
--- vincent-0.4.1~ppa6~revno/debian/bzr-builder.manifest	2014-04-16 09:47:28.000000000 +0000
+++ vincent-0.4.1~ppa6~revno/debian/bzr-builder.manifest	2014-04-17 10:47:32.000000000 +0000
@@ -1,3 +1,3 @@
-# bzr-builder format 0.3 deb-version 0.4.1~ppa6~revno-217
-lp:~pythonxy/pythonxy-upstream/python-vincent revid:git-v1:7c45b08c899845450590b5061145e71c3fa0aa2a
+# bzr-builder format 0.3 deb-version 0.4.1~ppa6~revno-218
+lp:~pythonxy/pythonxy-upstream/python-vincent revid:git-v1:b42b9809f8bd0f64f1ac8cac7f818493878fbead
 nest debianfiles lp:~pythonxy/pythonxy/python_vincent_debian debian revid:timmichelsen@gmx-topmail.de-20131102231937-ofaau2b439u4t9xf
diff -Nru vincent-0.4.1~ppa6~revno/debian/changelog vincent-0.4.1~ppa6~revno/debian/changelog
--- vincent-0.4.1~ppa6~revno/debian/changelog	2014-04-16 09:47:28.000000000 +0000
+++ vincent-0.4.1~ppa6~revno/debian/changelog	2014-04-17 10:47:32.000000000 +0000
@@ -1,6 +1,6 @@
-vincent (0.4.1~ppa6~revno-217~ubuntu13.10.1) saucy; urgency=low
+vincent (0.4.1~ppa6~revno-218~ubuntu13.10.1) saucy; urgency=low
 
   * Auto build.
 
- -- Launchpad Package Builder <noreply@launchpad.net>  Wed, 16 Apr 2014 09:47:28 +0000
+ -- Launchpad Package Builder <noreply@launchpad.net>  Thu, 17 Apr 2014 10:47:32 +0000
 
diff -Nru vincent-0.4.1~ppa6~revno/vincent/visualization.py vincent-0.4.1~ppa6~revno/vincent/visualization.py
--- vincent-0.4.1~ppa6~revno/vincent/visualization.py	2014-04-16 09:47:26.000000000 +0000
+++ vincent-0.4.1~ppa6~revno/vincent/visualization.py	2014-04-17 10:47:30.000000000 +0000
@@ -198,6 +198,7 @@
         else:
             self.axes.extend([Axis(type='x', title=x),
                               Axis(type='y', title=y)])
+        return self
 
     def _set_axis_properties(self, axis):
         """Set AxisProperties and PropertySets"""
@@ -254,6 +255,7 @@
                     axis.properties.title.font_size = ref
         else:
             raise ValueError('This Visualization has no axes!')
+        return self
 
     def x_axis_properties(self, title_size=None, title_offset=None,
                           label_angle=None, label_align=None, color=None):
@@ -274,6 +276,7 @@
         """
         self._axis_properties('x', title_size, title_offset, label_angle,
                               label_align, color)
+        return self
 
     def y_axis_properties(self, title_size=None, title_offset=None,
                           label_angle=None, label_align=None, color=None):
@@ -294,6 +297,7 @@
         """
         self._axis_properties('y', title_size, title_offset, label_angle,
                               label_align, color)
+        return self
 
     def legend(self, title=None, scale='color', text_color=None):
         """Convience method for adding a legend to the figure.
@@ -318,6 +322,7 @@
             color_props = PropertySet(fill=ValueRef(value=text_color))
             self.legends[0].properties.labels = color_props
             self.legends[0].properties.title = color_props
+        return self
 
     def colors(self, brew=None, range_=None):
         """Convenience method for adding color brewer scales to charts with a
@@ -340,6 +345,7 @@
             self.scales['color'].range = brews[brew]
         elif range_:
             self.scales['color'].range = range_
+        return self
 
     def validate(self, require_all=True, scale='colors'):
         """Validate the visualization contents.