def parse(self, fn):
ioc_xml = xmlutils.read_xml_no_ns(fn)<EOL>if not ioc_xml:<EOL><INDENT>return False<EOL><DEDENT>root = ioc_xml.getroot()<EOL>iocid = root.get('<STR_LIT:id>', None)<EOL>if not iocid:<EOL><INDENT>return False<EOL><DEDENT>self.iocs[iocid] = ioc_xml<EOL>return True<EOL>
Parses a file into a lxml.etree structure with namespaces remove.  This tree is added to self.iocs.

:param fn: File to parse.
:return: