def _check_unique_assignment(
self,
node: AnyAssign,
names: List[str],
) -> None:
for used_name, count in Counter(names).items():
if count > 1:
self.add_violation(
best_practices.ReassigningVariableToItselfViolation(
node,
text=used_name,
), )
def _check_reassignment(
self,
node: AnyAssign,
names: List[str],
) -> None:
if not node.value:
return
var_values = name_nodes.get_variables_from_node(node.value)
for var_name, var_value in itertools.zip_longest(names, var_values):
if var_name == var_value:
self.add_violation(
best_practices.ReassigningVariableToItselfViolation(
node,
text=var_name,
), )
def _check_unique_assignment(
self,
node: AnyAssign,
names: List[str],
) -> None:
used_names = filter(
lambda assigned_name: not access.is_unused(assigned_name),
names,
)
for used_name, count in Counter(used_names).items():
if count > 1:
self.add_violation(
best_practices.ReassigningVariableToItselfViolation(
node,
text=used_name,
), )
def _check_reassignment(
self,
node: AnyAssign,
names: List[str],
) -> None:
if not node.value:
return
if isinstance(nodes.get_context(node), ast.ClassDef):
return # This is not a variable, but a class property
var_values = name_nodes.get_variables_from_node(node.value)
for var_name, var_value in itertools.zip_longest(names, var_values):
if var_name == var_value:
self.add_violation(
best_practices.ReassigningVariableToItselfViolation(
node,
text=var_name,
), )
def _check_reassignment(
self,
node: AnyAssign,
names: List[str],
) -> None:
if not node.value:
return
if self._is_reassignment_edge_case(node):
return
var_values = name_nodes.get_variables_from_node(node.value)
if len(names) <= 1 < len(var_values):
# It means that we have something like `x = (y, z)`
# or even `x = (x, y)`, which is also fine. See #1807
return
for var_name, var_value in itertools.zip_longest(names, var_values):
if var_name == var_value:
self.add_violation(
best_practices.ReassigningVariableToItselfViolation(
node,
text=var_name,
), )
