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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def lisp(self, foldername="INBOX", reverse=False, since=None, stream=sys.stdout):
 """Do JSON list of the folder to the stream. 'since' allows the listing to be date filtered since that date. It should be a float, a time since epoch. """

        def fromval(hdr):
            if hdr:
                return parseaddr(hdr)

        for folder, mk, m in self._list(foldername, reverse, since):
            try:
                print(json.dumps({
                        'folder': folder.folder or foldername or "INBOX",
                        'key': "%s%s%s" % (folder.folder or foldername or "INBOX", SEPERATOR, mk),
                        'date':  str(m.date),
                        "flags": m.get_flags(),
                        'from': fromval(m.get_from()),
                        'subject': re.sub("\n|\'|\"", _escape, m.get_subject() or "")
                        }), file=stream)
            except IOError as e:
                if e.errno == errno.EPIPE:
                    # Broken pipe we can ignore
                    return
                self.logger.exception("whoops!")
            except Exception as e:
                self.logger.exception("whoops!")