init context may cause memory leak

[lin344902118]

dsl_parser/framework/parser.py between line 123 to 133. def _traverse_element_cls(self, element_cls, name, value, parent_element): element = element_cls(name=name, initial_value=value, context=self) self._add_element(element, parent=parent_element) self._traverse_schema(schema=element_cls.schema, parent_element=element) When initial element，context reference to itself, this may cause memory leak.Because circular reference exist，memory can not be collect by python garbage。

[lin344902118]

I think should import gc and exec gc.collect to free the memory.