Use qiskit_algorithms instead of deprecated qiskit.algorithms

.mypy.ini

@@ -106,6 +106,9 @@ ignore_missing_imports = True
 [mypy-qiskit_aer.*]
 ignore_missing_imports = True
 
+[mypy-qiskit_algorithms.*]
+ignore_missing_imports = True
+
 [mypy-qiskit_experiments.*]
 ignore_missing_imports = True
 

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## Unreleased
 
 * Set minimal required `qiskit` version to 0.45.0 (#108)
+* Use `qiskit-algorithms` package instead of deprecated `qiskit.algorithms` in examples (#110)
 
 ## qiskit-aqt-provider v0.19.0
 

examples/grover-3-sat.py

@@ -19,8 +19,8 @@
 import textwrap
 from typing import Final, Set, Tuple
 
-from qiskit.algorithms import AmplificationProblem, Grover
 from qiskit.circuit.library.phase_oracle import PhaseOracle
+from qiskit_algorithms import AmplificationProblem, Grover
 
 from qiskit_aqt_provider import AQTProvider
 from qiskit_aqt_provider.primitives import AQTSampler

examples/number_partition.py

@@ -22,9 +22,9 @@
 from dataclasses import dataclass
 from typing import Final, List, Set, Union
 
-from qiskit.algorithms.minimum_eigensolvers import QAOA
-from qiskit.algorithms.optimizers import COBYLA
-from qiskit.utils import algorithm_globals
+import qiskit_algorithms
+from qiskit_algorithms.minimum_eigensolvers import QAOA
+from qiskit_algorithms.optimizers import COBYLA
 from qiskit_optimization.algorithms import MinimumEigenOptimizer, OptimizationResultStatus
 from qiskit_optimization.applications import NumberPartition
 
@@ -81,7 +81,7 @@ def solve_partition_problem(num_set: Set[int]) -> Union[Success, Infeasible]:
     backend = AQTProvider("token").get_backend("offline_simulator_no_noise")
 
     # fix the random seeds such that the example is reproducible
-    algorithm_globals.random_seed = RANDOM_SEED
+    qiskit_algorithms.utils.algorithm_globals.random_seed = RANDOM_SEED
     backend.simulator.options.seed_simulator = RANDOM_SEED
 
     num_set = {1, 3, 4}

examples/qaoa.py

@@ -17,10 +17,10 @@
 
 from typing import Final
 
-from qiskit.algorithms.minimum_eigensolvers import QAOA
-from qiskit.algorithms.optimizers import COBYLA
+import qiskit_algorithms
 from qiskit.quantum_info import SparsePauliOp
-from qiskit.utils import algorithm_globals
+from qiskit_algorithms.minimum_eigensolvers import QAOA
+from qiskit_algorithms.optimizers import COBYLA
 
 from qiskit_aqt_provider import AQTProvider
 from qiskit_aqt_provider.primitives import AQTSampler
@@ -32,7 +32,7 @@
     sampler = AQTSampler(backend)
 
     # fix the random seeds such that the example is reproducible
-    algorithm_globals.random_seed = RANDOM_SEED
+    qiskit_algorithms.utils.algorithm_globals.random_seed = RANDOM_SEED
     backend.simulator.options.seed_simulator = RANDOM_SEED
 
     # Hamiltonian: Ising model on two spin 1/2 without external field

examples/vqe.py

@@ -14,11 +14,11 @@
 
 from typing import Final
 
-from qiskit.algorithms.minimum_eigensolvers import VQE
-from qiskit.algorithms.optimizers import COBYLA
+import qiskit_algorithms
 from qiskit.circuit.library import TwoLocal
 from qiskit.quantum_info import SparsePauliOp
-from qiskit.utils import algorithm_globals
+from qiskit_algorithms.minimum_eigensolvers import VQE
+from qiskit_algorithms.optimizers import COBYLA
 
 from qiskit_aqt_provider import AQTProvider
 from qiskit_aqt_provider.aqt_resource import OfflineSimulatorResource
@@ -32,7 +32,7 @@
     estimator = AQTEstimator(backend)
 
     # fix the random seeds such that the example is reproducible
-    algorithm_globals.random_seed = RANDOM_SEED
+    qiskit_algorithms.utils.algorithm_globals.random_seed = RANDOM_SEED
     backend.simulator.options.seed_simulator = RANDOM_SEED
 
     # Hamiltonian: Ising model on two spin 1/2 without external field

pyproject.toml

@@ -51,7 +51,8 @@ pydantic = ">=1.10.8,<2"
 python-dotenv = ">=1"
 qiskit = ">=0.45.0"
 qiskit-aer = ">=0.11"
-qiskit-optimization = { version = ">=0.5.0", optional = true }
+qiskit-algorithms = { version = ">=0.2.1", optional = true }
+qiskit-optimization = { version = ">=0.6.0", optional = true }
 tabulate = ">=0.9.0"
 tqdm = ">=4"
 tweedledum = { version = ">=1", optional = true }
@@ -94,7 +95,8 @@ examples-problematic = [
     "tweedledum"
 ]
 examples = [
-    "qiskit-optimization"
+    "qiskit-algorithms",
+    "qiskit-optimization",
 ]
 
 [build-system]