gears/environment.py
def register_defaults(self):
        """Register default compilers, preprocessors and MIME types."""
        self.mimetypes.register_defaults()
        self.preprocessors.register_defaults()
        self.postprocessors.register_defaults()
def register_defaults(self):
        """Register default compilers, preprocessors and MIME types."""
        self.mimetypes.register_defaults()
        self.preprocessors.register_defaults()
        self.postprocessors.register_defaults()
Register default compilers, preprocessors and MIME types.