parameters: (self, fd, URL, encoding, options)
return_statement: return __tmp
docstring: parse an XML from a file descriptor and build a tree. This
            reuses the existing @ctxt parser context NOTE that the file
            descriptor will not be closed when the reader is closed or
             reset.
docstring_summary: parse an XML from a file descriptor and build a tree. This
            reuses the existing
docstring_tokens: parse an XML from a file descriptor and build a tree . This reuses the existing
function: def ctxtReadFd(self, fd, URL, encoding, options):
          """parse an XML from a file descriptor and build a tree. This
            reuses the existing @ctxt parser context NOTE that the file
            descriptor will not be closed when the reader is closed or
             reset. """
          ret = libxml2mod.xmlCtxtReadFd(self._o, fd, URL, encoding, options)
          if ret is None:raise treeError('xmlCtxtReadFd() failed')
          __tmp = xmlDoc(_obj=ret)
          return __tmp
function_tokens: def ctxtReadFd ( self , fd , URL , encoding , options ) : ret = libxml2mod . xmlCtxtReadFd ( self . _o , fd , URL , encoding , options ) if ret is None : raise treeError ( 'xmlCtxtReadFd() failed' ) __tmp = xmlDoc ( _obj = ret ) return __tmp