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

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src/qibo/backends/__init__.py

@@ -36,7 +36,7 @@ def construct_backend(backend, **kwargs):
 
     elif backend == "qibotn":  # pragma: no cover
         from qibotn.backends import CuTensorNet, QuimbBackend  # pylint: disable=E0401
-        
+
         platform = kwargs.get("platform")
         if platform == "cutensornet":  # pragma: no cover
             return CuTensorNet(kwargs["runcard"])

tests/test_backend_qibotn.py

@@ -1,17 +1,18 @@
-import qibo
 import pytest
-from qibo.backends import GlobalBackend
 from qibotn.backends import CuTensorNet, QuimbBackend
 
+import qibo
+from qibo.backends import GlobalBackend
+
+
 @pytest.mark.parametrize("platform", ["cutensornet", "qutensornet"])
 def test_backend_qibotn(platform):
-    
+
     qibo.set_backend(backend="qibotn", platform=platform, runcard=None)
-    
+
     if platform == "qutensornet":
         qibotn_backend = QuimbBackend(runcard=None)
     else:
         qibotn_backend = CuTensorNet(runcard=None)
 
     assert isinstance(GlobalBackend(), type(qibotn_backend))
-