connection object associated with this request. See
  Connection Object below for details.
  (Read-Only)
Range: header.
  (Read-Only)
table object representing the headers to be sent to the
  client. 
table object containing environment information typically usable for CGI.
  You may have to call req.add_common_vars() first to fill in the information
  you need.
table object that could be used to store miscellaneous
  general purpose info that lives for as long as the request lives. If
  you need to pass data between handlers, it's better to simply add
  members to the request object than to use notes.
(mode, ino,
    dev, nlink, uid, gid, size, atime, mtime, ctime, fname,
    name). The apache module defines a set of FINFO_*
  constants that should be used to access elements of this
  tuple. Example:
  fname = req.finfo[apache.FINFO_FNAME]
(scheme, hostinfo, user, password, hostname, port, path, query, fragment). 
  The apache module defines a set of URI_* constants that
  should be used to access elements of this tuple. Example:
  fname = req.parsed_uri[apache.URI_PATH]