Add a copyright checker as a pylint plugin (quantumlib#4577)

This PR implements a pylint checker that automatically checks the copyright notice at the beginning of a python file. This task is proposed in [Issue 4564](quantumlib#4564). The PR consists of the following parts: 1. The implemented pylint checker (dev_tools/pylint_copyright_checker.py) and its test file (dev_tools/pylint_copyright_checker_test.py). The checker reports a message with id "R0001" if there is no copyright notice or the notice does not conform to the standard one. The letter 'R' represents refactoring. The checking can be disabled in the file with pragma `# pylint: disable=wrong-copyright-notice` 2. Modification of pylint-related files (check/pylint, check/pylint-changed-files, dev_tools/conf/.pylintrc) to integrate the new checker into the workflow. 3. Python files that failed in this check. Some copyright notices were wrong (e.g. cirq-core/cirq/circuits/circuit_dag.py and cirq-core/cirq/ops/qubit_order_test.py), and they are corrected. Some files did not have a copyright notice. In this case, the "disable" pragma is added. Note that not all the files need to have a copyright notice, [probably](https://softwareengineering.stackexchange.com/a/19653/322605). After the modification, these files can pass pylint checking again.
rht · May 1, 2023 · 62cf6a3 · 62cf6a3
1 parent 69f8e86
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diff --git a/check/pylint b/check/pylint
@@ -13,4 +13,5 @@ cd "$(git rev-parse --show-toplevel)"
 
 CIRQ_MODULES=$(env PYTHONPATH=. python dev_tools/modules.py list --mode package-path)
 
-pylint --rcfile=dev_tools/conf/.pylintrc $@ $CIRQ_MODULES dev_tools examples
+# Add dev_tools to $PYTHONPATH so that pylint can find custom checkers
+env PYTHONPATH=dev_tools pylint --rcfile=dev_tools/conf/.pylintrc $@ $CIRQ_MODULES dev_tools examples
diff --git a/check/pylint-changed-files b/check/pylint-changed-files
@@ -64,5 +64,5 @@ echo "Found ${num_changed} lintable files associated with changes." >&2
 if [ "${num_changed}" -eq 0 ]; then
     exit 0
 fi
-pylint --rcfile=dev_tools/conf/.pylintrc ${changed[@]}
+env PYTHONPATH=dev_tools pylint --rcfile=dev_tools/conf/.pylintrc ${changed[@]}
 
diff --git a/cirq-aqt/cirq_aqt/_version_test.py b/cirq-aqt/cirq_aqt/_version_test.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 import cirq_aqt
 
 

diff --git a/cirq-core/cirq/_version_test.py b/cirq-core/cirq/_version_test.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 import cirq
 
 

diff --git a/cirq-core/cirq/circuits/circuit_dag.py b/cirq-core/cirq/circuits/circuit_dag.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The ops Developers
+# Copyright 2018 The Cirq Developers
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

diff --git a/cirq-core/cirq/contrib/acquaintance/__init__.py b/cirq-core/cirq/contrib/acquaintance/__init__.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/contrib/json.py b/cirq-core/cirq/contrib/json.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 """Contains functions for adding JSON serialization and de-serialization for
 classes in Contrib.
 

diff --git a/cirq-core/cirq/contrib/json_test.py b/cirq-core/cirq/contrib/json_test.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 import cirq
 from cirq.contrib.quantum_volume import QuantumVolumeResult
 from cirq.testing import assert_json_roundtrip_works

diff --git a/cirq-core/cirq/contrib/paulistring/clifford_optimize.py b/cirq-core/cirq/contrib/paulistring/clifford_optimize.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The ops Developers
+# Copyright 2018 The Cirq Developers
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

diff --git a/cirq-core/cirq/contrib/paulistring/convert_gate_set.py b/cirq-core/cirq/contrib/paulistring/convert_gate_set.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The ops Developers
+# Copyright 2018 The Cirq Developers
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

diff --git a/cirq-core/cirq/contrib/paulistring/optimize.py b/cirq-core/cirq/contrib/paulistring/optimize.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The ops Developers
+# Copyright 2018 The Cirq Developers
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

diff --git a/cirq-core/cirq/contrib/paulistring/pauli_string_dag.py b/cirq-core/cirq/contrib/paulistring/pauli_string_dag.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The ops Developers
+# Copyright 2018 The Cirq Developers
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

diff --git a/cirq-core/cirq/contrib/paulistring/pauli_string_optimize.py b/cirq-core/cirq/contrib/paulistring/pauli_string_optimize.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The ops Developers
+# Copyright 2018 The Cirq Developers
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

diff --git a/cirq-core/cirq/contrib/paulistring/recombine.py b/cirq-core/cirq/contrib/paulistring/recombine.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The ops Developers
+# Copyright 2018 The Cirq Developers
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

diff --git a/cirq-core/cirq/contrib/paulistring/separate.py b/cirq-core/cirq/contrib/paulistring/separate.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The ops Developers
+# Copyright 2018 The Cirq Developers
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

diff --git a/cirq-core/cirq/contrib/qasm_import/_lexer_test.py b/cirq-core/cirq/contrib/qasm_import/_lexer_test.py
@@ -1,3 +1,9 @@
+# Copyright 2021 The Cirq Developers
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
 #     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software

diff --git a/cirq-core/cirq/contrib/qasm_import/_parser_test.py b/cirq-core/cirq/contrib/qasm_import/_parser_test.py
@@ -1,3 +1,9 @@
+# Copyright 2021 The Cirq Developers
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
 #     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software

diff --git a/cirq-core/cirq/contrib/qcircuit/__init__.py b/cirq-core/cirq/contrib/qcircuit/__init__.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/contrib/quantum_volume/quantum_volume.py b/cirq-core/cirq/contrib/quantum_volume/quantum_volume.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 """Utility functions to run the Quantum Volume benchmark defined by IBM in
 https://arxiv.org/abs/1811.12926.
 """

diff --git a/cirq-core/cirq/contrib/quantum_volume/quantum_volume_test.py b/cirq-core/cirq/contrib/quantum_volume/quantum_volume_test.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 """Tests for the Quantum Volume utilities."""
 
 from unittest.mock import Mock, MagicMock

diff --git a/cirq-core/cirq/contrib/quimb/__init__.py b/cirq-core/cirq/contrib/quimb/__init__.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 from cirq.contrib.quimb.state_vector import (
     circuit_for_expectation_value,
     tensor_expectation_value,

diff --git a/cirq-core/cirq/contrib/quimb/density_matrix.py b/cirq-core/cirq/contrib/quimb/density_matrix.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 from functools import lru_cache
 from typing import Sequence, Dict, Union, Tuple, List, Optional
 

diff --git a/cirq-core/cirq/contrib/quimb/density_matrix_test.py b/cirq-core/cirq/contrib/quimb/density_matrix_test.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 import numpy as np
 
 import cirq

diff --git a/cirq-core/cirq/contrib/quimb/grid_circuits.py b/cirq-core/cirq/contrib/quimb/grid_circuits.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 from typing import Optional, Iterator
 
 import networkx as nx

diff --git a/cirq-core/cirq/contrib/quimb/grid_circuits_test.py b/cirq-core/cirq/contrib/quimb/grid_circuits_test.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 import networkx as nx
 import numpy as np
 import pytest

diff --git a/cirq-core/cirq/contrib/quimb/mps_simulator_test.py b/cirq-core/cirq/contrib/quimb/mps_simulator_test.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 import itertools
 import math
 from unittest import mock

diff --git a/cirq-core/cirq/contrib/quimb/state_vector.py b/cirq-core/cirq/contrib/quimb/state_vector.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 import warnings
 from typing import Sequence, Union, List, Tuple, Dict, Optional
 

diff --git a/cirq-core/cirq/contrib/quimb/state_vector_test.py b/cirq-core/cirq/contrib/quimb/state_vector_test.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 import functools
 import operator
 

diff --git a/cirq-core/cirq/contrib/quirk/__init__.py b/cirq-core/cirq/contrib/quirk/__init__.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/contrib/quirk/export_to_quirk.py b/cirq-core/cirq/contrib/quirk/export_to_quirk.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/contrib/quirk/linearize_circuit.py b/cirq-core/cirq/contrib/quirk/linearize_circuit.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/contrib/quirk/quirk_gate.py b/cirq-core/cirq/contrib/quirk/quirk_gate.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/contrib/svg/__init__.py b/cirq-core/cirq/contrib/svg/__init__.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 from cirq.contrib.svg.svg import (
     SVGCircuit,
     circuit_to_svg,

diff --git a/cirq-core/cirq/contrib/svg/svg.py b/cirq-core/cirq/contrib/svg/svg.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 from typing import TYPE_CHECKING, List, Tuple, cast, Dict
 
 import matplotlib.textpath

diff --git a/cirq-core/cirq/contrib/svg/svg_test.py b/cirq-core/cirq/contrib/svg/svg_test.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 import pytest
 import numpy as np
 

diff --git a/cirq-core/cirq/devices/device_test.py b/cirq-core/cirq/devices/device_test.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 import pytest
 import cirq
 

diff --git a/cirq-core/cirq/devices/line_qubit.py b/cirq-core/cirq/devices/line_qubit.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/devices/line_qubit_test.py b/cirq-core/cirq/devices/line_qubit_test.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/devices/noise_properties.py b/cirq-core/cirq/devices/noise_properties.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 import warnings
 from typing import Sequence, TYPE_CHECKING, List
 from itertools import product

diff --git a/cirq-core/cirq/devices/noise_properties_test.py b/cirq-core/cirq/devices/noise_properties_test.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 import pytest
 import cirq
 from cirq.testing import assert_equivalent_op_tree

diff --git a/cirq-core/cirq/experiments/grid_parallel_two_qubit_xeb_test.py b/cirq-core/cirq/experiments/grid_parallel_two_qubit_xeb_test.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 import os
 import numpy as np
 import cirq

diff --git a/cirq-core/cirq/interop/__init__.py b/cirq-core/cirq/interop/__init__.py
@@ -1,3 +1,4 @@
+# pylint: disable=wrong-or-nonexistent-copyright-notice
 """Package containing code for interoperating with other quantum software."""
 
 from cirq.interop.quirk import (

diff --git a/cirq-core/cirq/interop/quirk/__init__.py b/cirq-core/cirq/interop/quirk/__init__.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/interop/quirk/cells/__init__.py b/cirq-core/cirq/interop/quirk/cells/__init__.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/interop/quirk/cells/all_cells.py b/cirq-core/cirq/interop/quirk/cells/all_cells.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/interop/quirk/cells/arithmetic_cells.py b/cirq-core/cirq/interop/quirk/cells/arithmetic_cells.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/interop/quirk/cells/arithmetic_cells_test.py b/cirq-core/cirq/interop/quirk/cells/arithmetic_cells_test.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/interop/quirk/cells/cell.py b/cirq-core/cirq/interop/quirk/cells/cell.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/interop/quirk/cells/cell_test.py b/cirq-core/cirq/interop/quirk/cells/cell_test.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/interop/quirk/cells/composite_cell.py b/cirq-core/cirq/interop/quirk/cells/composite_cell.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/interop/quirk/cells/composite_cell_test.py b/cirq-core/cirq/interop/quirk/cells/composite_cell_test.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/interop/quirk/cells/control_cells.py b/cirq-core/cirq/interop/quirk/cells/control_cells.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/interop/quirk/cells/control_cells_test.py b/cirq-core/cirq/interop/quirk/cells/control_cells_test.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/interop/quirk/cells/frequency_space_cells.py b/cirq-core/cirq/interop/quirk/cells/frequency_space_cells.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/interop/quirk/cells/frequency_space_cells_test.py b/cirq-core/cirq/interop/quirk/cells/frequency_space_cells_test.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/interop/quirk/cells/ignored_cells.py b/cirq-core/cirq/interop/quirk/cells/ignored_cells.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,

diff --git a/cirq-core/cirq/interop/quirk/cells/ignored_cells_test.py b/cirq-core/cirq/interop/quirk/cells/ignored_cells_test.py
@@ -4,7 +4,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
Original file line number	Diff line number	Diff line change
		@@ -1,3 +1,4 @@
		# pylint: disable=wrong-or-nonexistent-copyright-notice
		import cirq_aqt


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Original file line number	Diff line number	Diff line change
		@@ -1,3 +1,4 @@
		# pylint: disable=wrong-or-nonexistent-copyright-notice
		import cirq


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