Fix imports

tests/ops/functions/test_equal.py

@@ -16,10 +16,9 @@
 Tests are divided by number of parameters and wires different operators take.
 """
 import itertools
-
+import re
 # pylint: disable=too-many-arguments, too-many-public-methods
 from copy import deepcopy
-import re
 
 import numpy as np
 import pytest
@@ -30,11 +29,8 @@
 from pennylane.measurements.probs import ProbabilityMP
 from pennylane.operation import Operator
 from pennylane.ops.functions.equal import (
- BASE_OPERATION_MISMATCH_ERROR_MESSAGE,
- OPERANDS_MISMATCH_ERROR_MESSAGE,
- _equal,
- assert_equal,
-)
+ BASE_OPERATION_MISMATCH_ERROR_MESSAGE, OPERANDS_MISMATCH_ERROR_MESSAGE,
+ _equal, assert_equal)
 from pennylane.ops.op_math import Controlled, SymbolicOp
 from pennylane.templates.subroutines import ControlledSequence