Update dependencies, address pylint issues

constraints.txt

@@ -1,3 +0,0 @@
-astroid==2.3.3
-pylint==2.4.4
-traitlets!=5.0.5

qiskit_ibm_provider/api/clients/base.py

@@ -221,10 +221,7 @@ def stream(
 
                 self._current_retry += 1
                 if self._current_retry > retries:
-                    error_message = (
-                        "Max retries exceeded: Failed to establish a "
-                        f"websocket connection."
-                    )
+                    error_message = "Max retries exceeded: Failed to establish a websocket connection."
                     if self._error:
                         error_message += f" Error: {self._error}"
 

qiskit_ibm_provider/credentials/configrc.py

@@ -195,7 +195,7 @@ def _section_name(credentials_: Credentials) -> str:
         unrolled_credentials[_PREFERENCES_SECTION_NAME] = unrolled_pref
 
     # Write the configuration file.
-    with open(filename, "w") as config_file:
+    with open(filename, "w", encoding="utf-8") as config_file:
         config_parser = ConfigParser()
         config_parser.optionxform = str  # type: ignore
         config_parser.read_dict(unrolled_credentials)

qiskit_ibm_provider/ibm_backend.py

@@ -796,7 +796,7 @@ def run(  # type: ignore[override]
                 <qiskit_ibm_provider.ibm_backend_service.IBMBackendService.jobs>` method.
             backend_options: DEPRECATED dictionary of backend options for the execution.
             noise_model: Noise model.
-            kwargs: Additional runtime configuration options. They take
+            **kwargs: Additional runtime configuration options. They take
                 precedence over options of the same names specified in `backend_options`.
 
         Returns:

qiskit_ibm_provider/ibm_backend_service.py

@@ -128,7 +128,7 @@ def backends(
             hub: Name of the hub.
             group: Name of the group.
             project: Name of the project.
-            kwargs: Simple filters that specify a ``True``/``False`` criteria in the
+            **kwargs: Simple filters that specify a ``True``/``False`` criteria in the
                 backend configuration, backends status, or provider credentials.
                 An example to get the operational backends with 5 qubits::
 
@@ -141,7 +141,7 @@ def backends(
             IBMBackendValueError: If only one or two parameters from `hub`, `group`,
                 `project` are specified.
         """
-        backends: List[IBMBackend] = list()
+        backends: List[IBMBackend] = []
         if all([hub, group, project]):
             hgp = self._provider._get_hgp(hub, group, project)
             backends = list(hgp.backends.values())

qiskit_ibm_provider/ibm_provider.py

@@ -571,7 +571,7 @@ def backends(
             hub: Name of the hub.
             group: Name of the group.
             project: Name of the project.
-            kwargs: Simple filters that specify a ``True``/``False`` criteria in the
+            **kwargs: Simple filters that specify a ``True``/``False`` criteria in the
                 backend configuration, backends status, or provider credentials.
                 An example to get the operational backends with 5 qubits::
 

qiskit_ibm_provider/jupyter/dashboard/dashboard.py

@@ -42,7 +42,7 @@ def __init__(self, children: Optional[List] = None, **kwargs: Any):
             **kwargs: Additional keywords to be passed to ``ipywidgets.Accordion``.
         """
         children = children or []
-        super(AccordionWithThread, self).__init__(children=children, **kwargs)
+        super().__init__(children=children, **kwargs)
         self._thread = None
         # Devices VBox.
         self._device_list = None  # type: Optional[wid.VBox]
@@ -109,7 +109,7 @@ def _get_backends(self) -> None:
             )
             for backend in hgp.backends.values():
                 if not backend.configuration().simulator:
-                    if backend.name() not in ibm_backends.keys():
+                    if backend.name() not in ibm_backends:
                         ibm_backends[backend.name()] = BackendWithProviders(
                             backend=backend, providers=[hgp_name]
                         )

qiskit_ibm_provider/jupyter/jobs_widget.py

@@ -143,7 +143,7 @@ def _job_summary(
         _id = job.job_id()
         _name = job.name()
         _status = job.status().name
-        if _year not in jobs_dates.keys():
+        if _year not in jobs_dates:
             jobs_dates[_year] = {}
 
         _month = _date.month

qiskit_ibm_provider/jupyter/qubits_widget.py

@@ -65,7 +65,7 @@ def qubits_tab(backend: Union[IBMBackend, FakeBackend]) -> wid.VBox:
         for nduv in qubit_data:
             if nduv.name == "readout_error":
                 cali_data[nduv.name] = str(round(nduv.value * 100, 3))
-            elif nduv.name in cali_data.keys():
+            elif nduv.name in cali_data:
                 cali_data[nduv.name] = str(round(nduv.value, 3)) + " " + nduv.unit
 
         gate_names = []

qiskit_ibm_provider/version.py

@@ -28,9 +28,9 @@ def _minimal_ext_cmd(cmd: List[str]) -> bytes:
     # construct minimal environment
     env = {}
     for k in ["SYSTEMROOT", "PATH"]:
-        v = os.environ.get(k)
-        if v is not None:
-            env[k] = v
+        version = os.environ.get(k)
+        if version is not None:
+            env[k] = version
     # LANGUAGE is used on win32
     env["LANGUAGE"] = "C"
     env["LANG"] = "C"
@@ -60,7 +60,7 @@ def git_version() -> str:
     return git_revision
 
 
-with open(os.path.join(ROOT_DIR, "VERSION.txt"), "r") as version_file:
+with open(os.path.join(ROOT_DIR, "VERSION.txt"), "r", encoding="utf-8") as version_file:
     VERSION = version_file.read().strip()
 
 

qiskit_ibm_provider/visualization/interactive/error_map.py

@@ -93,7 +93,7 @@ def iplot_error_map(
     n_qubits = config.n_qubits
     cmap = config.coupling_map
 
-    if n_qubits in DEVICE_LAYOUTS.keys():
+    if n_qubits in DEVICE_LAYOUTS:
         grid_data = DEVICE_LAYOUTS[n_qubits]
     else:
         fig = go.Figure()

qiskit_ibm_provider/visualization/interactive/gate_map.py

@@ -87,7 +87,7 @@ def iplot_gate_map(
     if isinstance(line_color, str):
         line_color = [line_color] * len(cmap) if cmap else []
 
-    if n_qubits in DEVICE_LAYOUTS.keys():
+    if n_qubits in DEVICE_LAYOUTS:
         grid_data = DEVICE_LAYOUTS[n_qubits]
     else:
         fig = go.Figure()

qiskit_ibm_provider/visualization/interactive/plotly_wrapper.py

@@ -55,7 +55,7 @@ def show(self, *args, **kwargs) -> None:
         import plotly.io as pio
 
         config = {}
-        if "config" not in kwargs.keys():
+        if "config" not in kwargs:
             config = {"displayModeBar": False, "editable": False}
 
         pio.show(self._fig, *args, config=config, **kwargs)
@@ -101,7 +101,7 @@ def show(self, *args: Any, **kwargs: Any) -> None:
         import plotly.io as pio
 
         config = {}
-        if "config" not in kwargs.keys():
+        if "config" not in kwargs:
             config = {"scrollZoom": False, "displayModeBar": False, "editable": False}
 
         pio.show(self, *args, config=config, **kwargs)

requirements-dev.txt

@@ -1,8 +1,7 @@
-mypy==0.812
-pycodestyle
-pylint==2.4.4
+mypy==0.931
+pylint==2.12.2
 vcrpy
-pproxy==2.1.8
+pproxy==2.7.8
 Sphinx>=1.8.3
 sphinx-rtd-theme>=0.4.0
 sphinx-tabs>=1.1.11
@@ -21,9 +20,7 @@ reno>=2.11.0
 scipy>=1.0
 nbformat>=4.4.0
 nbconvert>=5.3.1
-qiskit_rng
 qiskit-aer
 websockets>=8
-scikit-quant;platform_system != 'Windows'
 black==22.1.0
 coverage>=6.3

test/contextmanagers.py

@@ -127,8 +127,7 @@ def _mock_initialize_hgps(
     self, credentials: Credentials, preferences: Optional[Dict] = None
 ) -> None:
     """Mock ``_initialize_hgps()``, just storing the credentials."""
-    hgp = dict()
-    hgp["credentials"] = credentials
+    hgp = {"credentials": credentials}
     self._hgp = hgp
     self._hgps = {}
     if preferences:

test/fake_account_client.py

@@ -164,7 +164,7 @@ def data(self):
 
         time_per_step = {}
         timestamp = self._creation_date
-        for api_stat in API_STATUS_TO_INT:
+        for api_stat in API_STATUS_TO_INT:  # pylint: disable=consider-using-dict-items
             if API_STATUS_TO_INT[status] > API_STATUS_TO_INT[api_stat]:
                 time_per_step[api_stat.value] = timestamp.isoformat()
                 timestamp += timedelta(seconds=30)

test/ibm/test_account_client.py

@@ -50,17 +50,17 @@ def setUpClass(cls, provider, hub, group, project):
     def setUp(self):
         """Initial test setup."""
         super().setUp()
-        qr = QuantumRegister(2)
-        cr = ClassicalRegister(2)
-        self.qc1 = QuantumCircuit(qr, cr, name="qc1")
-        self.qc2 = QuantumCircuit(qr, cr, name="qc2")
-        self.qc1.h(qr)
-        self.qc2.h(qr[0])
-        self.qc2.cx(qr[0], qr[1])
-        self.qc1.measure(qr[0], cr[0])
-        self.qc1.measure(qr[1], cr[1])
-        self.qc2.measure(qr[0], cr[0])
-        self.qc2.measure(qr[1], cr[1])
+        quantum_register = QuantumRegister(2)
+        classical_register = ClassicalRegister(2)
+        self.qc1 = QuantumCircuit(quantum_register, classical_register, name="qc1")
+        self.qc2 = QuantumCircuit(quantum_register, classical_register, name="qc2")
+        self.qc1.h(quantum_register)
+        self.qc2.h(quantum_register[0])
+        self.qc2.cx(quantum_register[0], quantum_register[1])
+        self.qc1.measure(quantum_register[0], classical_register[0])
+        self.qc1.measure(quantum_register[1], classical_register[1])
+        self.qc2.measure(quantum_register[0], classical_register[0])
+        self.qc2.measure(quantum_register[1], classical_register[1])
         self.seed = 73846087
 
         self.fake_server = None
@@ -214,9 +214,9 @@ def setUpClass(cls, provider, hub, group, project):
     def _get_qobj(backend):
         """Return a Qobj."""
         # Create a circuit.
-        qr = QuantumRegister(2)
-        cr = ClassicalRegister(2)
-        qc1 = QuantumCircuit(qr, cr, name="qc1")
+        quantum_register = QuantumRegister(2)
+        classical_register = ClassicalRegister(2)
+        qc1 = QuantumCircuit(quantum_register, classical_register, name="qc1")
         seed = 73846087
 
         # Assemble the Qobj.

test/ibm/test_basic_server_paths.py

@@ -136,6 +136,6 @@ def _submit_job_with_retry(self, circs, backend, max_retry=5):
                 limit_error = err
                 time.sleep(1)
 
-        self.fail(
+        return self.fail(
             "Unable to submit job after {} retries: {}".format(max_retry, limit_error)
         )

test/ibm/test_composite_job.py

@@ -902,7 +902,7 @@ def test_job_missing_subjobs(self):
                     )
                     with self.assertRaises(IBMJobInvalidStateError) as err_cm:
                         self.provider.backend.job(job_set.job_id())
-                    self.assertIn(f"tags", str(err_cm.exception))
+                    self.assertIn("tags", str(err_cm.exception))
                 finally:
                     job._api_client.job_update_attribute(
                         job_id=job.job_id(), attr_name="tags", attr_value=saved_tags

test/ibm/test_ibm_integration.py

@@ -45,13 +45,13 @@ def setUpClass(cls, provider, hub, group, project):
 
     def setUp(self):
         super().setUp()
-        qr = QuantumRegister(1)
-        cr = ClassicalRegister(1)
-        self._qc1 = QuantumCircuit(qr, cr, name="qc1")
-        self._qc2 = QuantumCircuit(qr, cr, name="qc2")
-        self._qc1.measure(qr[0], cr[0])
-        self._qc2.x(qr[0])
-        self._qc2.measure(qr[0], cr[0])
+        quantum_register = QuantumRegister(1)
+        classical_register = ClassicalRegister(1)
+        self._qc1 = QuantumCircuit(quantum_register, classical_register, name="qc1")
+        self._qc2 = QuantumCircuit(quantum_register, classical_register, name="qc2")
+        self._qc1.measure(quantum_register[0], classical_register[0])
+        self._qc2.x(quantum_register[0])
+        self._qc2.measure(quantum_register[0], classical_register[0])
 
     def test_ibm_result_fields(self):
         """Test components of a result from a remote simulator."""
@@ -67,61 +67,65 @@ def test_compile_remote(self, backend):
         """Test transpile with a remote backend."""
         qubit_reg = QuantumRegister(2, name="q")
         clbit_reg = ClassicalRegister(2, name="c")
-        qc = QuantumCircuit(qubit_reg, clbit_reg, name="bell")
-        qc.h(qubit_reg[0])
-        qc.cx(qubit_reg[0], qubit_reg[1])
-        qc.measure(qubit_reg, clbit_reg)
+        quantum_circuit = QuantumCircuit(qubit_reg, clbit_reg, name="bell")
+        quantum_circuit.h(qubit_reg[0])
+        quantum_circuit.cx(qubit_reg[0], qubit_reg[1])
+        quantum_circuit.measure(qubit_reg, clbit_reg)
 
-        circuits = transpile(qc, backend=backend)
+        circuits = transpile(quantum_circuit, backend=backend)
         self.assertIsInstance(circuits, QuantumCircuit)
 
     @requires_device
     def test_compile_two_remote(self, backend):
         """Test transpile with a remote backend on two circuits."""
         qubit_reg = QuantumRegister(2, name="q")
         clbit_reg = ClassicalRegister(2, name="c")
-        qc = QuantumCircuit(qubit_reg, clbit_reg, name="bell")
-        qc.h(qubit_reg[0])
-        qc.cx(qubit_reg[0], qubit_reg[1])
-        qc.measure(qubit_reg, clbit_reg)
+        quantum_circuit = QuantumCircuit(qubit_reg, clbit_reg, name="bell")
+        quantum_circuit.h(qubit_reg[0])
+        quantum_circuit.cx(qubit_reg[0], qubit_reg[1])
+        quantum_circuit.measure(qubit_reg, clbit_reg)
         qc_extra = QuantumCircuit(qubit_reg, clbit_reg, name="extra")
         qc_extra.measure(qubit_reg, clbit_reg)
-        circuits = transpile([qc, qc_extra], backend)
+        circuits = transpile([quantum_circuit, qc_extra], backend)
         self.assertIsInstance(circuits[0], QuantumCircuit)
         self.assertIsInstance(circuits[1], QuantumCircuit)
 
     def test_compile_two_run_remote(self):
         """Test transpile and run two circuits."""
         qubit_reg = QuantumRegister(2, name="q")
         clbit_reg = ClassicalRegister(2, name="c")
-        qc = QuantumCircuit(qubit_reg, clbit_reg, name="bell")
-        qc.h(qubit_reg[0])
-        qc.cx(qubit_reg[0], qubit_reg[1])
-        qc.measure(qubit_reg, clbit_reg)
+        quantum_circuit = QuantumCircuit(qubit_reg, clbit_reg, name="bell")
+        quantum_circuit.h(qubit_reg[0])
+        quantum_circuit.cx(qubit_reg[0], qubit_reg[1])
+        quantum_circuit.measure(qubit_reg, clbit_reg)
         qc_extra = QuantumCircuit(qubit_reg, clbit_reg, name="extra")
         qc_extra.measure(qubit_reg, clbit_reg)
         circs = transpile(
-            [qc, qc_extra], backend=self.sim_backend, seed_transpiler=self.seed
+            [quantum_circuit, qc_extra],
+            backend=self.sim_backend,
+            seed_transpiler=self.seed,
         )
         job = self.sim_backend.run(circs)
         result = job.result()
         self.assertIsInstance(result, Result)
 
     def test_execute_two_remote(self):
         """Test executing two circuits on a remote backend."""
-        qc = ReferenceCircuits.bell()
+        quantum_circuit = ReferenceCircuits.bell()
         qc_extra = QuantumCircuit(2, 2)
         qc_extra.measure_all()
-        job = execute([qc, qc_extra], self.sim_backend, seed_transpiler=self.seed)
+        job = execute(
+            [quantum_circuit, qc_extra], self.sim_backend, seed_transpiler=self.seed
+        )
         results = job.result()
         self.assertIsInstance(results, Result)
 
     @requires_private_provider
     def test_private_job(self, provider, hub, group, project):
         """Test a private job."""
         backend = provider.get_backend("ibmq_qasm_simulator", hub, group, project)
-        qc = ReferenceCircuits.bell()
-        job = execute(qc, backend=backend)
+        quantum_circuit = ReferenceCircuits.bell()
+        job = execute(quantum_circuit, backend=backend)
         self.assertIsNotNone(job.circuits())
         self.assertIsNotNone(job.result())