[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

setup.py

@@ -1,6 +1,7 @@
-from setuptools import setup, find_packages
-import re
 import pathlib
+import re
+
+from setuptools import find_packages, setup
 
 HERE = pathlib.Path(__file__).parent.absolute()
 PACKAGE = "qibotn"

src/qibotn/MPSUtils.py

@@ -1,6 +1,6 @@
 import cupy as cp
-from cuquantum.cutensornet.experimental import contract_decompose
 from cuquantum import contract
+from cuquantum.cutensornet.experimental import contract_decompose
 
 
 def initial(num_qubits, dtype):

src/qibotn/QiboCircuitConvertor.py

@@ -94,8 +94,7 @@ def init_intermediate_circuit(self, circuit):
             required_shape = self.op_shape_from_qubits(len(gate_qubits))
             self.gate_tensors.append(
                 (
-                    cp.asarray(gate.matrix(), dtype=self.dtype).reshape(
-                        required_shape),
+                    cp.asarray(gate.matrix(), dtype=self.dtype).reshape(required_shape),
                     gate_qubits,
                 )
             )

src/qibotn/QiboCircuitToMPS.py

@@ -1,9 +1,9 @@
 import cupy as cp
 import numpy as np
-
 from cuquantum import cutensornet as cutn
+
+from qibotn.MPSUtils import apply_gate, initial
 from qibotn.QiboCircuitConvertor import QiboCircuitToEinsum
-from qibotn.MPSUtils import initial, apply_gate
 
 
 class QiboCircuitToMPS:

src/qibotn/cutn.py

@@ -1,12 +1,13 @@
-from qibotn.QiboCircuitConvertor import QiboCircuitToEinsum
-from cuquantum import contract
-from cuquantum import cutensornet as cutn
 import multiprocessing
-from cupy.cuda.runtime import getDeviceCount
+
 import cupy as cp
+from cupy.cuda.runtime import getDeviceCount
+from cuquantum import contract
+from cuquantum import cutensornet as cutn
 
-from qibotn.QiboCircuitToMPS import QiboCircuitToMPS
 from qibotn.mps_contraction_helper import MPSContractionHelper
+from qibotn.QiboCircuitConvertor import QiboCircuitToEinsum
+from qibotn.QiboCircuitToMPS import QiboCircuitToMPS
 
 
 def eval(qibo_circ, datatype):
@@ -49,7 +50,7 @@ def eval_tn_MPI(qibo_circ, datatype, n_samples=8):
 
     return result, rank
 
-  
+
 def eval_mps(qibo_circ, gate_algo, datatype):
     myconvertor = QiboCircuitToMPS(qibo_circ, gate_algo, dtype=datatype)
     mps_helper = MPSContractionHelper(myconvertor.num_qubits)

src/qibotn/mps_contraction_helper.py

@@ -1,4 +1,4 @@
-from cuquantum import contract, contract_path, CircuitToEinsum, tensor
+from cuquantum import CircuitToEinsum, contract, contract_path, tensor
 
 
 class MPSContractionHelper:

src/qibotn/quimb.py

@@ -3,8 +3,14 @@
 from qibo.models import Circuit as QiboCircuit
 
 
-def from_qibo(circuit: QiboCircuit, is_mps: False, psi0=None, method='svd',
-              cutoff=1e-6, cutoff_mode='abs'):
+def from_qibo(
+    circuit: QiboCircuit,
+    is_mps: False,
+    psi0=None,
+    method="svd",
+    cutoff=1e-6,
+    cutoff_mode="abs",
+):
     nqubits = circuit.nqubits
     gate_opt = {}
     if is_mps:

tests/test_cuquantum_cutensor_backend.py

@@ -1,8 +1,8 @@
 from timeit import default_timer as timer
 
 import config
-import numpy as np
 import cupy as cp
+import numpy as np
 import pytest
 import qibo
 from qibo.models import QFT
@@ -35,18 +35,14 @@ def test_eval(nqubits: int, dtype="complex128"):
     import qibotn.cutn
 
     # Test qibo
-    qibo.set_backend(backend=config.qibo.backend,
-                     platform=config.qibo.platform)
-    qibo_time, (qibo_circ, result_sv) = time(
-        lambda: qibo_qft(nqubits, swaps=True))
+    qibo.set_backend(backend=config.qibo.backend, platform=config.qibo.platform)
+    qibo_time, (qibo_circ, result_sv) = time(lambda: qibo_qft(nqubits, swaps=True))
 
     # Test Cuquantum
-    cutn_time, result_tn = time(
-        lambda: qibotn.cutn.eval(qibo_circ, dtype).flatten())
+    cutn_time, result_tn = time(lambda: qibotn.cutn.eval(qibo_circ, dtype).flatten())
 
     assert 1e-2 * qibo_time < cutn_time < 1e2 * qibo_time
-    assert np.allclose(
-        result_sv, result_tn), "Resulting dense vectors do not match"
+    assert np.allclose(result_sv, result_tn), "Resulting dense vectors do not match"
 
 
 @pytest.mark.gpu
@@ -62,25 +58,25 @@ def test_mps(nqubits: int, dtype="complex128"):
     import qibotn.cutn
 
     # Test qibo
-    qibo.set_backend(backend=config.qibo.backend,
-                     platform=config.qibo.platform)
+    qibo.set_backend(backend=config.qibo.backend, platform=config.qibo.platform)
 
-    qibo_time, (circ_qibo, result_sv) = time(
-        lambda: qibo_qft(nqubits, swaps=True))
+    qibo_time, (circ_qibo, result_sv) = time(lambda: qibo_qft(nqubits, swaps=True))
 
     result_sv_cp = cp.asarray(result_sv)
 
     # Test of MPS
-    gate_algo = {'qr_method': False,
-                 'svd_method': {
-                     'partition': 'UV',
-                     'abs_cutoff': 1e-12,
-                 }}
+    gate_algo = {
+        "qr_method": False,
+        "svd_method": {
+            "partition": "UV",
+            "abs_cutoff": 1e-12,
+        },
+    }
 
     cutn_time, result_tn = time(
-        lambda: qibotn.cutn.eval_mps(circ_qibo, gate_algo, dtype).flatten())
+        lambda: qibotn.cutn.eval_mps(circ_qibo, gate_algo, dtype).flatten()
+    )
 
-    print(
-        f"State vector difference: {abs(result_tn - result_sv_cp).max():0.3e}")
+    print(f"State vector difference: {abs(result_tn - result_sv_cp).max():0.3e}")
 
     assert cp.allclose(result_tn, result_sv_cp)

tests/test_qasm_quimb_backend.py

@@ -1,5 +1,6 @@
 import copy
 import os
+
 import config
 import numpy as np
 import pytest
@@ -8,8 +9,7 @@
 
 
 def create_init_state(nqubits):
-    init_state = np.random.random(2**nqubits) + \
-        1j * np.random.random(2**nqubits)
+    init_state = np.random.random(2**nqubits) + 1j * np.random.random(2**nqubits)
     init_state = init_state / np.sqrt((np.abs(init_state) ** 2).sum())
     return init_state
 
@@ -20,8 +20,10 @@ def qibo_qft(nqubits, init_state, swaps):
     return circ_qibo, state_vec
 
 
-@pytest.mark.parametrize("nqubits, tolerance, is_mps",
-                         [(1, 1e-6, True), (2, 1e-6, False), (5, 1e-3, True), (10, 1e-3, False)])
+@pytest.mark.parametrize(
+    "nqubits, tolerance, is_mps",
+    [(1, 1e-6, True), (2, 1e-6, False), (5, 1e-3, True), (10, 1e-3, False)],
+)
 def test_eval(nqubits: int, tolerance: float, is_mps: bool):
     # hack quimb to use the correct number of processes
     # TODO: remove completely, or at least delegate to the backend
@@ -33,22 +35,20 @@ def test_eval(nqubits: int, tolerance: float, is_mps: bool):
     init_state_tn = copy.deepcopy(init_state)
 
     # Test qibo
-    qibo.set_backend(backend=config.qibo.backend,
-                     platform=config.qibo.platform)
-    #qibo_time, (qibo_circ, result_sv) = time(
-        #lambda: qibo_qft(nqubits, init_state, swaps=True)
-    #)
-    qibo_circ, result_sv= qibo_qft(nqubits, init_state, swaps=True)
-
+    qibo.set_backend(backend=config.qibo.backend, platform=config.qibo.platform)
+    # qibo_time, (qibo_circ, result_sv) = time(
+    # lambda: qibo_qft(nqubits, init_state, swaps=True)
+    # )
+    qibo_circ, result_sv = qibo_qft(nqubits, init_state, swaps=True)
 
     # Convert to qasm for other backends
     qasm_circ = qibo_circ.to_qasm()
 
     # Test quimb
     result_tn = qibotn.quimb.eval(
-            qasm_circ, init_state_tn, is_mps, backend=config.quimb.backend
-        )
-
+        qasm_circ, init_state_tn, is_mps, backend=config.quimb.backend
+    )
 
-    assert np.allclose(result_sv, result_tn,
-                       atol=tolerance), "Resulting dense vectors do not match"
+    assert np.allclose(
+        result_sv, result_tn, atol=tolerance
+    ), "Resulting dense vectors do not match"