Initialize self.__tempfiles to [] in the constructor (else it remains a shared class variable -- but each instance will attempt to clean it up entirely ob cleanup).
Initialize self.__tempfiles to [] in the constructor (else it remains
a shared class variable -- but each instance will attempt to clean it
up entirely ob cleanup).

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator