old_contents: from __future__ import (absolute_import, division, print_function,
                          unicode_literals)
  # For testing purposes we might need to set mpl backend before any
  # other import of matplotlib.
  def _set_mpl_backend():
      import os
      import matplotlib as mpl
  
      env_backend = os.environ.get('MATPLOTLIB_BACKEND')
      if env_backend:
          # we were instructed
          mpl.use(env_backend)
  
  _set_mpl_backend()
  
  # This is the only place the version is specified and 
  # used in both setup.py and docs/conf.py to set the 
  # version of ggplot.
  __version__ = '0.6.3'
  
  from .qplot import qplot
  from .ggplot import ggplot
  from .components import aes
  from .coords import *
  from .geoms import *
  from .stats import *
  from .scales import *
  from .themes import *
  from .utils import *
  from .exampledata import (diamonds,mtcars,meat,pageviews,movies)
  
new_contents: from __future__ import (absolute_import, division, print_function,
                          unicode_literals)
  # For testing purposes we might need to set mpl backend before any
  # other import of matplotlib.
  def _set_mpl_backend():
      import os
      import matplotlib as mpl
  
      env_backend = os.environ.get('MATPLOTLIB_BACKEND')
      if env_backend:
          # we were instructed
          mpl.use(env_backend)
  
  _set_mpl_backend()
  
  # This is the only place the version is specified and 
  # used in both setup.py and docs/conf.py to set the 
  # version of ggplot.
  __version__ = '0.6.4'
  
  from .qplot import qplot
  from .ggplot import ggplot
  from .components import aes
  from .coords import *
  from .geoms import *
  from .stats import *
  from .scales import *
  from .themes import *
  from .utils import *
  from .exampledata import (diamonds,mtcars,meat,pageviews,movies)
  
subject: patch for python3