old_contents: #!/usr/bin/env python
  from scale import scale
  from ..utils import date_breaks, date_format
  from .scale import scale
  from copy import deepcopy
  
  
  class scale_x_date(scale):
      """
      args:
          breaks => One of:
              1) a string specifying the width between breaks.
              2) the result of a valid call to `date_breaks`
              # TODO: third option not implemented yet
              3) a vector of breaks
  
      example:
          # 1) manually pass in breaks=date_breaks()
  
          print ggplot(meat, aes('date','beef')) + \
              geom_line() + \
              scale_x_date(breaks=date_breaks('10 years'),
                  labels=date_format('%B %-d, %Y'))
  
          # 2) or breaks as just a string
  
          print ggplot(meat, aes('date','beef')) + \
              geom_line() + \
              scale_x_date(breaks='10 years',
                  labels=date_format('%B %-d, %Y'))
      """
      VALID_SCALES = ['name', 'labels', 'limits', 'breaks', 'trans']
      def __radd__(self, gg):
          gg = deepcopy(gg)
          if self.name:
              gg.xlab = self.name.title()
          if self.labels:
              if isinstance(self.labels, basestring):
                  self.labels = date_format(self.labels)
              gg.xtick_formatter = self.labels
          if self.limits:
              gg.xlimits = self.limits
          if self.breaks:
              if isinstance(self.breaks, basestring):
                  self.breaks = date_breaks(self.breaks)
              gg.xmajor_locator = self.breaks
          return gg
  
new_contents: #!/usr/bin/env python
  from ..utils import date_breaks, date_format
  from .scale import scale
  from copy import deepcopy
  
  
  class scale_x_date(scale):
      """
      args:
          breaks => One of:
              1) a string specifying the width between breaks.
              2) the result of a valid call to `date_breaks`
              # TODO: third option not implemented yet
              3) a vector of breaks
  
      example:
          # 1) manually pass in breaks=date_breaks()
  
          print ggplot(meat, aes('date','beef')) + \
              geom_line() + \
              scale_x_date(breaks=date_breaks('10 years'),
                  labels=date_format('%B %-d, %Y'))
  
          # 2) or breaks as just a string
  
          print ggplot(meat, aes('date','beef')) + \
              geom_line() + \
              scale_x_date(breaks='10 years',
                  labels=date_format('%B %-d, %Y'))
      """
      VALID_SCALES = ['name', 'labels', 'limits', 'breaks', 'trans']
      def __radd__(self, gg):
          gg = deepcopy(gg)
          if self.name:
              gg.xlab = self.name.title()
          if self.labels:
              if isinstance(self.labels, basestring):
                  self.labels = date_format(self.labels)
              gg.xtick_formatter = self.labels
          if self.limits:
              gg.xlimits = self.limits
          if self.breaks:
              if isinstance(self.breaks, basestring):
                  self.breaks = date_breaks(self.breaks)
              gg.xmajor_locator = self.breaks
          return gg
  
subject: remove double import of scale module