nntplib.py 文件源码

def descriptions(self, group_pattern):
        """Get descriptions for a range of groups."""
        line_pat = re.compile("^(?P<group>[^ \t]+)[ \t]+(.*)$")
        # Try the more std (acc. to RFC2980) LIST NEWSGROUPS first
        resp, raw_lines = self.longcmd('LIST NEWSGROUPS ' + group_pattern)
        if resp[:3] != "215":
            # Now the deprecated XGTITLE.  This either raises an error
            # or succeeds with the same output structure as LIST
            # NEWSGROUPS.
            resp, raw_lines = self.longcmd('XGTITLE ' + group_pattern)
        lines = []
        for raw_line in raw_lines:
            match = line_pat.search(raw_line.strip())
            if match:
                lines.append(match.group(1, 2))
        return resp, lines