human
Solve the following python programming problem given the following code:
def initialize_parse_state(self, build_file) : 
    'Creates a fresh parse state for the given build file.

    :param build_file: The BUILD file to set up a new ParseState for.
    :type build_file: :class:`pants.base.build_file.BuildFile`
    :returns: A fresh ParseState for parsing the given `build_file` with.
    :rtype: :class:`BuildConfiguration.ParseState`
    ' 
    type_aliases = self._exposed_object_by_alias.copy () 
    registered_addressable_instances = [] 
    def create_call_proxy(tgt_type, tgt_alias = None) : 
        def registration_callback(address, addressable) : 
            registered_addressable_instances.append ((address, addressable)) 
addressable_factory = self._get_addressable_factory (tgt_type, tgt_alias) 
        return AddressableCallProxy (addressable_factory = addressable_factory, build_file = build_file, registration_callback = registration_callback) 
for (alias, target_type) in self._target_by_alias.items () : 
        proxy = create_call_proxy (target_type, alias) 
        type_aliases [alias] = proxy 
parse_globals = type_aliases.copy () 
    for (alias, target_type) in self._target_by_alias.items () : 
        proxy = type_aliases [alias] 
        type_aliases [target_type] = proxy 
for target_macro_factory in self._target_macro_factory_by_alias.values () : 
        for target_type in parse_context.target_types : 
            proxy = create_call_proxy (target_type) 
            type_aliases [target_type] = proxy 
parse_context = ParseContext (rel_path = build_file.spec_path, type_aliases = type_aliases) 
    for (alias, object_factory) in self._exposed_context_aware_object_factory_by_alias.items () : 
        parse_globals [alias] = object_factory (parse_context) 
for (alias, target_macro_factory) in self._target_macro_factory_by_alias.items () : 
        parse_globals [alias] = target_macro_factory.target_macro (parse_context) 
return self.ParseState (registered_addressable_instances, parse_globals) 

    
    

    Fix the buggy line: for target_type in parse_context.target_types :
assistant
#Here is Python code to fix the buggy line: for target_type in parse_context.

for target_type in target_macro_factory.target_types :