def issue338():
from collections import namedtuple<EOL>class Crash(namedtuple("<STR_LIT:C>", "<STR_LIT>")):<EOL><INDENT>"""<STR_LIT>"""<EOL>def __str__(self):<EOL><INDENT>return "<STR_LIT>".format(self)<EOL><DEDENT><DEDENT>return Crash<EOL>
Check that using a namedtuple subclass doesn't crash when
trying to infer EmptyNodes (resulted after mocking the
members of namedtuples).