__init__.py 文件源码

def registerExtensions(self, extensions, configs):  # noqa
        """
        Register extensions with this instance of Markdown.

        Keyword arguments:

        * extensions: A list of extensions, which can either
           be strings or objects.  See the docstring on Markdown.
        * configs: A dictionary mapping module names to config options.

        """

        from markdown import util
        from markdown.extensions import Extension

        for ext in extensions:
            try:
                if isinstance(ext, util.string_type):
                    ext = self.build_extension(ext, configs.get(ext, {}))
                if isinstance(ext, Extension):
                    ext.extendMarkdown(self, globals())
                elif ext is not None:
                    raise TypeError(
                        'Extension "%s.%s" must be of type: "markdown.Extension"'
                        % (ext.__class__.__module__, ext.__class__.__name__)
                    )
            except Exception:
                # We want to gracefully continue even if an extension fails.
                _log('Failed to load markdown module!')
                _debug(traceback.format_exc(), ERROR)

        return self