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def resolve(x):
try:
return input_mapping[x]
except KeyError:
raise NameError(x)
assign = input_mapping.__setitem__
delete = input_mapping.__delitem__
else:
input_mapping = False
class DynamicMapping(object):
_data = {}
_deleted = set()
def __repr__(self):
if input_mapping:
return 'DynamicMapping({!r})'.format(input_mapping)
else:
return 'DynamicMapping(resolve={!r}, assign={!r})'.format(resolve, assign)
def __getitem__(self, key):
if key in self._deleted:
raise NameError(key)
if assign is None:
try:
return self._data[key]
except KeyError:
pass # Continue with resolve()
try:
return resolve(key)
except NameError as exc:
if automatic_builtins and not key.startswith('_'):
try:
return getattr(builtins, key)
except AttributeError:
pass
raise exc
def __setitem__(self, key, value):
self._deleted.discard(key)
if assign is None:
self._data[key] = value
else:
assign(key, value)
def __delitem__(self, key):
if delete is None:
self._deleted.add(key)
else:
delete(key)
def get(self, key, default=None):
try:
return self[key]
except NameError:
return default
mapping = DynamicMapping()
globals_ = {'__dict__': mapping}
if filename:
mapping['__file__'] = filename
globals_['__file__'] = filename
if module_name:
mapping['__name__'] = module_name
globals_['__name__'] = module_name
return (exec_ if _type == 'exec' else eval)(code, globals_)"
400,"def __get_subscript(self, name, ctx=None):
""""""
Returns `<data_var>[""<name>""]`
""""""
assert isinstance(name, string_types), name
return ast.Subscript(
value=ast.Name(id=self.data_var, ctx=ast.Load()),
slice=ast.Index(value=ast.Str(s=name)),
ctx=ctx)"
401,"def __get_subscript_assign(self, name):
""""""
Returns `<data_var>[""<name>""] = <name>`.
""""""
return ast.Assign(
targets=[self.__get_subscript(name, ast.Store())],
value=ast.Name(id=name, ctx=ast.Load()))"
402,"def __get_subscript_delete(self, name):
""""""
Returns `del <data_var>[""<name>""]`.
""""""
return ast.Delete(targets=[self.__get_subscript(name, ast.Del())])"
403,"def __visit_target(self, node):
""""""
Call this method to visit assignment targets and to add local variables
to the current stack frame. Used in #visit_Assign() and
#__visit_comprehension().
""""""
if isinstance(node, ast.Name) and isinstance(node.ctx, ast.Store):
self.__add_variable(node.id)
elif isinstance(node, (ast.Tuple, ast.List)):