Remove basicaer

.github/workflows/ibmq_tests.yml

@@ -1,7 +1,7 @@
-name: IBMQ integration tests
+name: IBMQ integration tests with Qiskit 1.0
 on:
   schedule:
-    - cron: '0 0 * * 0,4' # At 00:00 on Sunday and Thursday.
+    - cron: '1 0 * * 0,4' # At 01:00 on Sunday and Thursday.
   workflow_dispatch:
 
 jobs:
@@ -28,7 +28,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install -r requirements-ci-legacy.txt
+          pip install -r requirements-ci.txt
           pip install wheel pytest pytest-cov pytest-mock flaky --upgrade
           pip freeze
 

.github/workflows/tests.yml

@@ -1,4 +1,4 @@
-name: Tests
+name: Tests for 1.0
 on:
   push:
     branches:
@@ -30,7 +30,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install git+https://github.com/PennyLaneAI/pennylane.git
-          pip install -r requirements-ci-legacy.txt
+          pip install -r requirements-ci.txt
           pip install wheel pytest pytest-cov pytest-mock flaky --upgrade
           pip freeze
 
@@ -39,12 +39,9 @@ jobs:
           pip install git+https://github.com/PennyLaneAI/pennylane-qiskit.git@${{ github.ref }}
           pip freeze
 
-      - name: Run tests
-        # Skip IBMQ and Runtime tests as they depend on IBMQ's availability and
-        # easily result in timeouts
+      - name: Run standard Qiskit plugin tests
+        # Run the standard tests with the most recent version of Qiskit
         run: python -m pytest tests -k 'not test_ibmq.py and not test_runtime.py' --cov=pennylane_qiskit --cov-report=term-missing --cov-report=xml -p no:warnings --tb=native
-        env:
-          IBMQX_TOKEN: ${{ secrets.IBMQX_TOKEN_TEST }}
 
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v4
@@ -72,19 +69,17 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install git+https://github.com/PennyLaneAI/pennylane.git
-          pip install -r requirements-ci-legacy.txt
+          pip install -r requirements-ci.txt
           pip install wheel pytest pytest-cov pytest-mock pytest-benchmark flaky --upgrade
-          pip freeze
 
       - name: Install Plugin
         run: |
           python setup.py bdist_wheel
           pip install dist/PennyLane*.whl
-          pip freeze
 
       - name: Run tests
         run: |
-          pl-device-test --device=qiskit.basicaer --tb=short --skip-ops --shots=20000 --device-kwargs backend=qasm_simulator
+          pl-device-test --device=qiskit.basicsim --tb=short --skip-ops --shots=20000 --device-kwargs backend=basic_simulator
           pl-device-test --device=qiskit.aer --tb=short --skip-ops --shots=20000 --device-kwargs backend=qasm_simulator
           pl-device-test --device=qiskit.aer --tb=short --skip-ops --shots=None --device-kwargs backend=statevector_simulator
           pl-device-test --device=qiskit.aer --tb=short --skip-ops --shots=None --device-kwargs backend=unitary_simulator

CHANGELOG.md

@@ -5,6 +5,16 @@
 ### Improvements 🛠
 
 ### Breaking changes 💔
+* Support has been removed for Qiskit versions below 0.46. The minimum required version for Qiskit is now 1.0. 
+  If you want to continue to use older versions of Qiskit with the plugin, please use version 0.36 of 
+  the Pennylane-Qiskit plugin. 
+  [(#536)](https://github.com/PennyLaneAI/pennylane-qiskit/pull/536)
+
+* The test suite no longer runs for Qiskit versions below 0.46.
+  [(#536)](https://github.com/PennyLaneAI/pennylane-qiskit/pull/536)
+
+* The basic aer device has been removed.
+  [(#546)](https://github.com/PennyLaneAI/pennylane-qiskit/pull/546)
 
 ### Deprecations 👋
 
@@ -15,6 +25,7 @@
 ### Contributors ✍️
 
 This release contains contributions from (in alphabetical order):
+Austin Huang
 
 ---
 # Release 0.36.0

doc/index.rst

@@ -21,10 +21,6 @@ The following devices are available:
     :description: Qiskit's staple simulator with great features such as noise models.
     :link: devices/aer.html
 
-.. title-card::
-    :name: 'qiskit.basicaer'
-    :description: A simplified version of the Aer device, which requires fewer dependencies.
-    :link: devices/basicaer.html
 
 .. title-card::
     :name: 'qiskit.basicsim'
@@ -76,9 +72,9 @@ follows:
 
     dev = qml.device('qiskit.aer', wires=2, backend='unitary_simulator')
 
-PennyLane chooses the ``qasm_simulator`` as the default backend if no backend is specified.
-For more details on the ``qasm_simulator``, including available backend options, see
-`Qiskit Qasm Simulator documentation <https://qiskit.org/ecosystem/aer/stubs/qiskit_aer.QasmSimulator.html>`_.
+PennyLane chooses the ``aer_simulator`` as the default backend if no backend is specified.
+For more details on the ``aer_simulator``, including available backend options, see
+`Qiskit Aer Simulator documentation <https://qiskit.github.io/qiskit-aer/stubs/qiskit_aer.AerSimulator.html#qiskit_aer.AerSimulator.run>`_.
 
 Tutorials
 ~~~~~~~~~
@@ -138,7 +134,6 @@ hardware access.
    :hidden:
 
    devices/aer
-   devices/basicaer
    devices/basicsim
    devices/ibmq
    devices/runtime

doc/requirements.txt

@@ -7,10 +7,10 @@ pennylane==0.34
 pybind11==2.11.1
 pygments==2.17.2
 pygments-github-lexers==0.0.5
-qiskit==0.45.3
-qiskit-aer==0.13.3
-qiskit-ibm-runtime==0.20.0
-qiskit-ibm-provider==0.10.0
+qiskit==1.0.2
+qiskit-aer==0.14.1
+qiskit-ibm-runtime==0.23.0
+qiskit-ibm-provider==0.11.0
 sphinxcontrib-bibtex==2.6.2
 sphinx-automodapi==0.17.0
 pennylane-sphinx-theme

pennylane_qiskit/__init__.py

@@ -15,7 +15,7 @@
 
 from ._version import __version__
 from .aer import AerDevice
-from .basic_aer import BasicAerDevice, BasicSimulatorDevice
+from .basic_sim import BasicSimulatorDevice
 from .ibmq import IBMQDevice
 from .remote import RemoteDevice
 from .converter import load, load_pauli_op, load_qasm, load_qasm_from_file

pennylane_qiskit/basic_aer.py → pennylane_qiskit/basic_sim.py

@@ -20,56 +20,9 @@
 
 from semantic_version import Version
 
+from qiskit.providers.basic_provider import BasicProvider
 from .qiskit_device import QiskitDevice
 
-if Version(qiskit.__version__) >= Version("1.0.0"):
-    from qiskit.providers.basic_provider import BasicProvider
-
-
-class BasicAerDevice(QiskitDevice):
-    """A PennyLane device for the native Python Qiskit simulator BasicAer.
-
-    Please see the `Qiskit documentations <https://qiskit.org/documentation/>`_
-    further information on the backend options and transpile options.
-
-    A range of :code:`backend_options` that will be passed to the simulator and
-    a range of transpile options can be given as kwargs.
-
-    For more information on backends, please visit the
-    `Basic Aer provider documentation <https://qiskit.org/documentation/apidoc/providers_basicaer.html>`_.
-
-    Args:
-        wires (int or Iterable[Number, str]]): Number of subsystems represented by the device,
-            or iterable that contains unique labels for the subsystems as numbers (i.e., ``[-1, 0, 2]``)
-            or strings (``['aux_wire', 'q1', 'q2']``).
-        backend (str): the desired backend
-        shots (int or None): number of circuit evaluations/random samples used
-            to estimate expectation values and variances of observables. For statevector backends,
-            setting to ``None`` results in computing statistics like expectation values and variances analytically.
-
-    Keyword Args:
-        name (str): The name of the circuit. Default ``'circuit'``.
-        compile_backend (BaseBackend): The backend used for compilation. If you wish
-            to simulate a device compliant circuit, you can specify a backend here.
-    """
-
-    short_name = "qiskit.basicaer"
-
-    def __init__(self, wires, shots=1024, backend="qasm_simulator", **kwargs):
-
-        max_ver = Version("0.46", partial=True)
-
-        if Version(qiskit.__version__) > max_ver:
-            raise RuntimeError(
-                f"Qiskit has discontinued the BasicAer device, so it can only be used in"
-                f"versions of Qiskit below 1.0. You have version {qiskit.__version__} "
-                f"installed. For a Python simulator, use the 'qiskit.basicsim' device "
-                f"instead. Alternatively, you can downgrade Qiskit to use the "
-                f"'qiskit.basicaer' device."
-            )
-
-        super().__init__(wires, provider=qiskit.BasicAer, backend=backend, shots=shots, **kwargs)
-
 
 class BasicSimulatorDevice(QiskitDevice):
     """A PennyLane device for the native Python Qiskit simulator.