diff --git a/qiskit_ibm_provider/fake_provider/__init__.py b/qiskit_ibm_provider/fake_provider/__init__.py
index e2ae5a1ff..70acc4371 100644
--- a/qiskit_ibm_provider/fake_provider/__init__.py
+++ b/qiskit_ibm_provider/fake_provider/__init__.py
@@ -251,4 +251,3 @@
 
 # Special fake backends for special testing purposes
 from .fake_qasm_simulator import FakeQasmSimulator
-
diff --git a/qiskit_ibm_provider/fake_provider/backends/melbourne/fake_melbourne.py b/qiskit_ibm_provider/fake_provider/backends/melbourne/fake_melbourne.py
index 530492b31..c7c559141 100644
--- a/qiskit_ibm_provider/fake_provider/backends/melbourne/fake_melbourne.py
+++ b/qiskit_ibm_provider/fake_provider/backends/melbourne/fake_melbourne.py
@@ -17,7 +17,11 @@
 import os
 import json
 
-from qiskit.providers.models import GateConfig, QasmBackendConfiguration, BackendProperties
+from qiskit.providers.models import (
+    GateConfig,
+    QasmBackendConfiguration,
+    BackendProperties,
+)
 from qiskit_ibm_provider.fake_provider.fake_backend import FakeBackend
 from qiskit_ibm_provider.fake_provider import fake_backend
 
@@ -86,6 +90,6 @@ def properties(self):
         """Returns a snapshot of device properties"""
         dirname = os.path.dirname(__file__)
         filename = "props_melbourne.json"
-        with open(os.path.join(dirname, filename)) as f_prop:
+        with open(os.path.join(dirname, filename), encoding="utf-8") as f_prop:
             props = json.load(f_prop)
         return BackendProperties.from_dict(props)
diff --git a/qiskit_ibm_provider/fake_provider/backends/poughkeepsie/fake_poughkeepsie.py b/qiskit_ibm_provider/fake_provider/backends/poughkeepsie/fake_poughkeepsie.py
index 920f6f590..ed47f4096 100644
--- a/qiskit_ibm_provider/fake_provider/backends/poughkeepsie/fake_poughkeepsie.py
+++ b/qiskit_ibm_provider/fake_provider/backends/poughkeepsie/fake_poughkeepsie.py
@@ -17,7 +17,11 @@
 import os
 import json
 
-from qiskit.providers.models import GateConfig, QasmBackendConfiguration, BackendProperties
+from qiskit.providers.models import (
+    GateConfig,
+    QasmBackendConfiguration,
+    BackendProperties,
+)
 from qiskit_ibm_provider.fake_provider.fake_backend import FakeBackend
 from qiskit_ibm_provider.fake_provider import fake_backend
 
@@ -119,6 +123,6 @@ def properties(self):
         """Returns a snapshot of device properties"""
         dirname = os.path.dirname(__file__)
         filename = "props_poughkeepsie.json"
-        with open(os.path.join(dirname, filename)) as f_prop:
+        with open(os.path.join(dirname, filename), encoding="utf-8") as f_prop:
             props = json.load(f_prop)
         return BackendProperties.from_dict(props)
diff --git a/qiskit_ibm_provider/fake_provider/backends/tenerife/fake_tenerife.py b/qiskit_ibm_provider/fake_provider/backends/tenerife/fake_tenerife.py
index 969ec854e..2d49e8a4b 100644
--- a/qiskit_ibm_provider/fake_provider/backends/tenerife/fake_tenerife.py
+++ b/qiskit_ibm_provider/fake_provider/backends/tenerife/fake_tenerife.py
@@ -17,7 +17,11 @@
 import os
 import json
 
-from qiskit.providers.models import GateConfig, QasmBackendConfiguration, BackendProperties
+from qiskit.providers.models import (
+    GateConfig,
+    QasmBackendConfiguration,
+    BackendProperties,
+)
 from qiskit_ibm_provider.fake_provider.fake_backend import FakeBackend
 
 
@@ -59,6 +63,6 @@ def properties(self):
         """Returns a snapshot of device properties as recorded on 8/30/19."""
         dirname = os.path.dirname(__file__)
         filename = "props_tenerife.json"
-        with open(os.path.join(dirname, filename)) as f_prop:
+        with open(os.path.join(dirname, filename), encoding="utf-8") as f_prop:
             props = json.load(f_prop)
         return BackendProperties.from_dict(props)
diff --git a/qiskit_ibm_provider/fake_provider/backends/tokyo/fake_tokyo.py b/qiskit_ibm_provider/fake_provider/backends/tokyo/fake_tokyo.py
index c012685ec..586702e1d 100644
--- a/qiskit_ibm_provider/fake_provider/backends/tokyo/fake_tokyo.py
+++ b/qiskit_ibm_provider/fake_provider/backends/tokyo/fake_tokyo.py
@@ -17,7 +17,11 @@
 import os
 import json
 
-from qiskit.providers.models import GateConfig, QasmBackendConfiguration, BackendProperties
+from qiskit.providers.models import (
+    GateConfig,
+    QasmBackendConfiguration,
+    BackendProperties,
+)
 from qiskit_ibm_provider.fake_provider.fake_backend import FakeBackend
 
 
@@ -132,6 +136,6 @@ def properties(self):
         """Returns a snapshot of device properties as recorded on 8/30/19."""
         dirname = os.path.dirname(__file__)
         filename = "props_tokyo.json"
-        with open(os.path.join(dirname, filename)) as f_prop:
+        with open(os.path.join(dirname, filename), encoding="utf-8") as f_prop:
             props = json.load(f_prop)
         return BackendProperties.from_dict(props)
diff --git a/qiskit_ibm_provider/fake_provider/fake_backend.py b/qiskit_ibm_provider/fake_provider/fake_backend.py
index d4c33f329..6a132117a 100644
--- a/qiskit_ibm_provider/fake_provider/fake_backend.py
+++ b/qiskit_ibm_provider/fake_provider/fake_backend.py
@@ -25,7 +25,11 @@
 from typing import List, Iterable
 
 from qiskit import circuit
-from qiskit.providers.models import BackendProperties, BackendConfiguration, PulseDefaults
+from qiskit.providers.models import (
+    BackendProperties,
+    BackendConfiguration,
+    PulseDefaults,
+)
 from qiskit.providers import BackendV2, BackendV1
 from qiskit import pulse
 from qiskit.exceptions import QiskitError
@@ -118,7 +122,9 @@ def _parse_channels(self, channels):
 
     def _setup_sim(self):
         if _optionals.HAS_AER:
-            from qiskit_aer import AerSimulator # pylint: disable=import-outside-toplevel
+            from qiskit_aer import (  # pylint: disable=import-outside-toplevel
+                AerSimulator,
+            )
 
             self.sim = AerSimulator()
             if self.target and self._props_dict:
@@ -200,7 +206,9 @@ def _default_options(cls):
                 default values set
         """
         if _optionals.HAS_AER:
-            from qiskit_aer import AerSimulator # pylint: disable=import-outside-toplevel
+            from qiskit_aer import (  # pylint: disable=import-outside-toplevel
+                AerSimulator,
+            )
 
             return AerSimulator._default_options()
         else:
@@ -339,7 +347,10 @@ def run(self, run_input, **options):
             pulse_job = False
         elif isinstance(circuits, list):
             if circuits:
-                if all(isinstance(x, (pulse.Schedule, pulse.ScheduleBlock)) for x in circuits):
+                if all(
+                    isinstance(x, (pulse.Schedule, pulse.ScheduleBlock))
+                    for x in circuits
+                ):
                     pulse_job = True
                 elif all(isinstance(x, circuit.QuantumCircuit) for x in circuits):
                     pulse_job = False
@@ -349,7 +360,9 @@ def run(self, run_input, **options):
                 "QuantumCircuit, Schedule, or a list of either" % circuits
             )
         if pulse_job:  # pulse job
-            raise QiskitError("Pulse simulation is currently not supported for V2 fake backends.")
+            raise QiskitError(
+                "Pulse simulation is currently not supported for V2 fake backends."
+            )
         # circuit job
         if not _optionals.HAS_AER:
             warnings.warn("Aer not found using BasicAer and no noise", RuntimeWarning)
@@ -373,15 +386,21 @@ def _get_noise_model_from_backend_v2(
         This is a temporary fix until qiskit-aer supports building noise model
         from a BackendV2 object.
         """
-        from qiskit.circuit import Delay # pylint: disable=import-outside-toplevel
-        from qiskit.providers.exceptions import BackendPropertyError # pylint: disable=import-outside-toplevel
-        from qiskit_aer.noise import NoiseModel # pylint: disable=import-outside-toplevel
-        from qiskit_aer.noise.device.models import (
-            _excited_population, # pylint: disable=import-outside-toplevel
-            basic_device_gate_errors, # pylint: disable=import-outside-toplevel
-            basic_device_readout_errors, # pylint: disable=import-outside-toplevel
+        from qiskit.circuit import Delay  # pylint: disable=import-outside-toplevel
+        from qiskit.providers.exceptions import (  # pylint: disable=import-outside-toplevel
+            BackendPropertyError,
+        )
+        from qiskit_aer.noise import (  # pylint: disable=import-outside-toplevel
+            NoiseModel,
+        )
+        from qiskit_aer.noise.device.models import (  # pylint: disable=import-outside-toplevel
+            _excited_population,
+            basic_device_gate_errors,
+            basic_device_readout_errors,
+        )
+        from qiskit_aer.noise.passes import (  # pylint: disable=import-outside-toplevel
+            RelaxationNoisePass,
         )
-        from qiskit_aer.noise.passes import RelaxationNoisePass # pylint: disable=import-outside-toplevel
 
         if self._props_dict is None:
             self._set_props_dict_from_json()
@@ -389,7 +408,7 @@ def _get_noise_model_from_backend_v2(
         properties = BackendProperties.from_dict(self._props_dict)
         basis_gates = self.operation_names
         num_qubits = self.num_qubits
-        dt = self.dt
+        dt = self.dt  # pylint: disable=invalid-name
 
         noise_model = NoiseModel(basis_gates=basis_gates)
 
@@ -419,7 +438,9 @@ def _get_noise_model_from_backend_v2(
             # Add delay errors via RelaxationNoise pass
             try:
                 excited_state_populations = [
-                    _excited_population(freq=properties.frequency(q), temperature=temperature)
+                    _excited_population(
+                        freq=properties.frequency(q), temperature=temperature
+                    )
                     for q in range(num_qubits)
                 ]
             except BackendPropertyError:
@@ -458,8 +479,10 @@ def __init__(self, configuration, time_alive=10):
 
     def _setup_sim(self):
         if _optionals.HAS_AER:
-            import qiskit_aer as aer
-            from qiskit_aer.noise import NoiseModel
+            import qiskit_aer as aer  # pylint: disable=import-outside-toplevel
+            from qiskit_aer.noise import (  # pylint: disable=import-outside-toplevel
+                NoiseModel,
+            )
 
             self.sim = aer.AerSimulator()
             if self.properties():
@@ -484,8 +507,18 @@ def properties(self):
             "last_update_date": "2000-01-01 00:00:00Z",
             "qubits": [
                 [
-                    {"date": "2000-01-01 00:00:00Z", "name": "T1", "unit": "\u00b5s", "value": 0.0},
-                    {"date": "2000-01-01 00:00:00Z", "name": "T2", "unit": "\u00b5s", "value": 0.0},
+                    {
+                        "date": "2000-01-01 00:00:00Z",
+                        "name": "T1",
+                        "unit": "\u00b5s",
+                        "value": 0.0,
+                    },
+                    {
+                        "date": "2000-01-01 00:00:00Z",
+                        "name": "T2",
+                        "unit": "\u00b5s",
+                        "value": 0.0,
+                    },
                     {
                         "date": "2000-01-01 00:00:00Z",
                         "name": "frequency",
@@ -498,7 +531,12 @@ def properties(self):
                         "unit": "",
                         "value": 0.0,
                     },
-                    {"date": "2000-01-01 00:00:00Z", "name": "operational", "unit": "", "value": 1},
+                    {
+                        "date": "2000-01-01 00:00:00Z",
+                        "name": "operational",
+                        "unit": "",
+                        "value": 1,
+                    },
                 ]
                 for _ in range(len(unique_qubits))
             ],
@@ -526,7 +564,9 @@ def properties(self):
     @classmethod
     def _default_options(cls):
         if _optionals.HAS_AER:
-            from qiskit_aer import QasmSimulator
+            from qiskit_aer import (  # pylint: disable=import-outside-toplevel
+                QasmSimulator,
+            )
 
             return QasmSimulator._default_options()
         else:
@@ -542,7 +582,10 @@ def run(self, run_input, **kwargs):
             pulse_job = False
         elif isinstance(circuits, list):
             if circuits:
-                if all(isinstance(x, (pulse.Schedule, pulse.ScheduleBlock)) for x in circuits):
+                if all(
+                    isinstance(x, (pulse.Schedule, pulse.ScheduleBlock))
+                    for x in circuits
+                ):
                     pulse_job = True
                 elif all(isinstance(x, circuit.QuantumCircuit) for x in circuits):
                     pulse_job = False
@@ -553,19 +596,25 @@ def run(self, run_input, **kwargs):
             )
         if pulse_job:
             if _optionals.HAS_AER:
-                import qiskit_aer as aer
-                from qiskit_aer.pulse import PulseSystemModel
+                import qiskit_aer as aer  # pylint: disable=import-outside-toplevel
+                from qiskit_aer.pulse import (  # pylint: disable=import-outside-toplevel
+                    PulseSystemModel,
+                )
 
                 system_model = PulseSystemModel.from_backend(self)
                 sim = aer.Aer.get_backend("pulse_simulator")
                 job = sim.run(circuits, system_model=system_model, **kwargs)
             else:
-                raise QiskitError("Unable to run pulse schedules without qiskit-aer installed")
+                raise QiskitError(
+                    "Unable to run pulse schedules without qiskit-aer installed"
+                )
         else:
             if self.sim is None:
                 self._setup_sim()
             if not _optionals.HAS_AER:
-                warnings.warn("Aer not found using BasicAer and no noise", RuntimeWarning)
+                warnings.warn(
+                    "Aer not found using BasicAer and no noise", RuntimeWarning
+                )
             self.sim._options = self._options
             job = self.sim.run(circuits, **kwargs)
         return job
diff --git a/qiskit_ibm_provider/fake_provider/fake_job.py b/qiskit_ibm_provider/fake_provider/fake_job.py
index dbf60abfa..35e96a9c1 100644
--- a/qiskit_ibm_provider/fake_provider/fake_job.py
+++ b/qiskit_ibm_provider/fake_provider/fake_job.py
@@ -19,6 +19,7 @@
 
 from qiskit.providers import JobV1
 from qiskit.providers.jobstatus import JobStatus
+from qiskit_ibm_provider.exceptions import IBMError
 
 
 class FakeJob(JobV1):
@@ -54,7 +55,7 @@ def status(self):
         elif self._error:
             _status = JobStatus.ERROR
         else:
-            raise Exception(f"Unexpected state of {self.__class__.__name__}")
+            raise IBMError(f"Unexpected state of {self.__class__.__name__}")
         _status_msg = None
         return {"status": _status, "status_msg": _status_msg}
 
diff --git a/qiskit_ibm_provider/fake_provider/fake_provider.py b/qiskit_ibm_provider/fake_provider/fake_provider.py
index 5a5244e09..a0d7585c8 100644
--- a/qiskit_ibm_provider/fake_provider/fake_provider.py
+++ b/qiskit_ibm_provider/fake_provider/fake_provider.py
@@ -22,6 +22,7 @@
 from .backends import *
 from .fake_qasm_simulator import FakeQasmSimulator
 
+
 class FakeProviderFactory:
     """Fake provider factory class."""
 
@@ -72,7 +73,9 @@ class FakeProviderForBackendV2(ProviderV1):
     def get_backend(self, name=None, **kwargs):
         backend = self._backends[0]
         if name:
-            filtered_backends = [backend for backend in self._backends if backend.name() == name]
+            filtered_backends = [
+                backend for backend in self._backends if backend.name() == name
+            ]
             if not filtered_backends:
                 raise QiskitBackendNotFoundError()
 
@@ -146,7 +149,9 @@ class FakeProvider(ProviderV1):
     def get_backend(self, name=None, **kwargs):
         backend = self._backends[0]
         if name:
-            filtered_backends = [backend for backend in self._backends if backend.name() == name]
+            filtered_backends = [
+                backend for backend in self._backends if backend.name() == name
+            ]
             if not filtered_backends:
                 raise QiskitBackendNotFoundError()
 
diff --git a/qiskit_ibm_provider/fake_provider/fake_qasm_backend.py b/qiskit_ibm_provider/fake_provider/fake_qasm_backend.py
index d350e3a20..1f8713b2c 100644
--- a/qiskit_ibm_provider/fake_provider/fake_qasm_backend.py
+++ b/qiskit_ibm_provider/fake_provider/fake_qasm_backend.py
@@ -64,7 +64,7 @@ def _set_props_from_json(self):
         self._properties = BackendProperties.from_dict(props)
 
     def _load_json(self, filename):
-        with open(os.path.join(self.dirname, filename)) as f_json:
+        with open(os.path.join(self.dirname, filename), encoding="utf-8") as f_json:
             the_json = json.load(f_json)
         return the_json
 
diff --git a/qiskit_ibm_provider/fake_provider/fake_qasm_simulator.py b/qiskit_ibm_provider/fake_provider/fake_qasm_simulator.py
index e7210d0cb..cfa0497f6 100644
--- a/qiskit_ibm_provider/fake_provider/fake_qasm_simulator.py
+++ b/qiskit_ibm_provider/fake_provider/fake_qasm_simulator.py
@@ -38,8 +38,20 @@ def __init__(self):
             gates=[GateConfig(name="TODO", parameters=[], qasm_def="TODO")],
             dt=1.3333,
             dtm=10.5,
-            qubit_lo_range=[[4.95, 5.05], [4.95, 5.05], [4.95, 5.05], [4.95, 5.05], [4.95, 5.05]],
-            meas_lo_range=[[6.65, 6.75], [6.65, 6.75], [6.65, 6.75], [6.65, 6.75], [6.65, 6.75]],
+            qubit_lo_range=[
+                [4.95, 5.05],
+                [4.95, 5.05],
+                [4.95, 5.05],
+                [4.95, 5.05],
+                [4.95, 5.05],
+            ],
+            meas_lo_range=[
+                [6.65, 6.75],
+                [6.65, 6.75],
+                [6.65, 6.75],
+                [6.65, 6.75],
+                [6.65, 6.75],
+            ],
         )
 
         super().__init__(configuration)
diff --git a/qiskit_ibm_provider/fake_provider/fake_qobj.py b/qiskit_ibm_provider/fake_provider/fake_qobj.py
index 71bd1d96b..c0f33d6e5 100644
--- a/qiskit_ibm_provider/fake_provider/fake_qobj.py
+++ b/qiskit_ibm_provider/fake_provider/fake_qobj.py
@@ -41,4 +41,6 @@ def __init__(self):
                 config=QasmQobjExperimentConfig(seed=123456),
             )
         ]
-        super().__init__(qobj_id=qobj_id, config=config, experiments=experiments, header=header)
+        super().__init__(
+            qobj_id=qobj_id, config=config, experiments=experiments, header=header
+        )
diff --git a/qiskit_ibm_provider/fake_provider/utils/backend_converter.py b/qiskit_ibm_provider/fake_provider/utils/backend_converter.py
index 758a294a5..998b44cc4 100644
--- a/qiskit_ibm_provider/fake_provider/utils/backend_converter.py
+++ b/qiskit_ibm_provider/fake_provider/utils/backend_converter.py
@@ -27,7 +27,9 @@
 from qiskit.providers.models.pulsedefaults import PulseDefaults
 
 
-def convert_to_target(conf_dict: dict, props_dict: dict = None, defs_dict: dict = None) -> Target:
+def convert_to_target(
+    conf_dict: dict, props_dict: dict = None, defs_dict: dict = None
+) -> Target:
     """Uses configuration, properties and pulse defaults dicts
     to construct and return Target class.
     """
@@ -43,7 +45,9 @@ def convert_to_target(conf_dict: dict, props_dict: dict = None, defs_dict: dict
     qubit_props = None
     if props_dict:
         qubit_props = qubit_props_from_props(props_dict)
-    target = Target(qubit_properties=qubit_props, concurrent_measurements=conf_dict.get("meas_map"))
+    target = Target(
+        qubit_properties=qubit_props, concurrent_measurements=conf_dict.get("meas_map")
+    )
     # Parse from properties if it exsits
     if props_dict is not None:
         # Parse instructions
@@ -98,14 +102,16 @@ def convert_to_target(conf_dict: dict, props_dict: dict = None, defs_dict: dict
         measure_props = {(n,): None for n in range(conf_dict["n_qubits"])}
         target.add_instruction(Measure(), measure_props)
     # parse global configuration properties
-    dt = conf_dict.get("dt")
+    dt = conf_dict.get("dt")  # pylint: disable=invalid-name
     if dt:
         target.dt = dt * 1e-9
     if "timing_constraints" in conf_dict:
         target.granularity = conf_dict["timing_constraints"].get("granularity")
         target.min_length = conf_dict["timing_constraints"].get("min_length")
         target.pulse_alignment = conf_dict["timing_constraints"].get("pulse_alignment")
-        target.acquire_alignment = conf_dict["timing_constraints"].get("acquire_alignment")
+        target.acquire_alignment = conf_dict["timing_constraints"].get(
+            "acquire_alignment"
+        )
     # If pulse defaults exists use that as the source of truth
     if defs_dict is not None:
         # TODO remove the usage of PulseDefaults as it will be deprecated in the future
@@ -141,10 +147,16 @@ def qubit_props_from_props(properties: dict) -> list:
         qubit_properties = {}
         for prop_dict in qubit:
             if prop_dict["name"] == "T1":
-                qubit_properties["t1"] = apply_prefix(prop_dict["value"], prop_dict["unit"])
+                qubit_properties["t1"] = apply_prefix(
+                    prop_dict["value"], prop_dict["unit"]
+                )
             elif prop_dict["name"] == "T2":
-                qubit_properties["t2"] = apply_prefix(prop_dict["value"], prop_dict["unit"])
+                qubit_properties["t2"] = apply_prefix(
+                    prop_dict["value"], prop_dict["unit"]
+                )
             elif prop_dict["name"] == "frequency":
-                qubit_properties["frequency"] = apply_prefix(prop_dict["value"], prop_dict["unit"])
+                qubit_properties["frequency"] = apply_prefix(
+                    prop_dict["value"], prop_dict["unit"]
+                )
         qubit_props.append(QubitProperties(**qubit_properties))
     return qubit_props
diff --git a/qiskit_ibm_provider/fake_provider/utils/json_decoder.py b/qiskit_ibm_provider/fake_provider/utils/json_decoder.py
index 557674915..e40035466 100644
--- a/qiskit_ibm_provider/fake_provider/utils/json_decoder.py
+++ b/qiskit_ibm_provider/fake_provider/utils/json_decoder.py
@@ -40,7 +40,9 @@ def decode_backend_properties(properties: Dict) -> None:
     Args:
         properties: A ``BackendProperties`` in dictionary format.
     """
-    properties["last_update_date"] = dateutil.parser.isoparse(properties["last_update_date"])
+    properties["last_update_date"] = dateutil.parser.isoparse(
+        properties["last_update_date"]
+    )
     for qubit in properties["qubits"]:
         for nduv in qubit:
             nduv["date"] = dateutil.parser.isoparse(nduv["date"])
@@ -106,4 +108,6 @@ def _decode_pulse_qobj_instr(pulse_qobj_instr: Dict) -> None:
     if "val" in pulse_qobj_instr:
         pulse_qobj_instr["val"] = _to_complex(pulse_qobj_instr["val"])
     if "parameters" in pulse_qobj_instr and "amp" in pulse_qobj_instr["parameters"]:
-        pulse_qobj_instr["parameters"]["amp"] = _to_complex(pulse_qobj_instr["parameters"]["amp"])
+        pulse_qobj_instr["parameters"]["amp"] = _to_complex(
+            pulse_qobj_instr["parameters"]["amp"]
+        )
diff --git a/test/unit/fake_provider/test_fake_backends.py b/test/unit/fake_provider/test_fake_backends.py
index 1b45684e7..4473dcfb0 100644
--- a/test/unit/fake_provider/test_fake_backends.py
+++ b/test/unit/fake_provider/test_fake_backends.py
@@ -31,6 +31,7 @@ def get_test_circuit():
     qc.measure(qr[1], cr[1])
     return qc
 
+
 class FakeBackendsTest(QiskitTestCase):
     """fake backends test."""