code: def exclude_from(self, dist):
          
  
          dist.exclude(**self.extras)
  
          if self.remove:
              for item in self.remove:
                  dist.exclude_package(item)
docs: Ensure feature is excluded from distribution
  
          You may override this in a subclass to perform additional operations on
          the distribution.  This method will be called at most once per
          feature, and only after all included features have been asked to
          include themselves.