textwrap.py 文件源码

def _munge_whitespace(self, text):
        """_munge_whitespace(text : string) -> string

        Munge whitespace in text: expand tabs and convert all other
        whitespace characters to spaces.  Eg. " foo\\tbar\\n\\nbaz"
        becomes " foo    bar  baz".
        """
        if self.expand_tabs:
            text = text.expandtabs()
        if self.replace_whitespace:
            if isinstance(text, str):
                text = text.translate(self.whitespace_trans)
            elif isinstance(text, _unicode):
                text = text.translate(self.unicode_whitespace_trans)
        return text