rm CondaPkg environment

.CondaPkg/env/Lib/site-packages/networkx/linalg/tests/test_algebraic_connectivity.py

@@ -46,10 +46,25 @@ def test_fiedler_vector_tracemin_unknown():
         )
 
 
+def test_spectral_bisection():
+    pytest.importorskip("scipy")
+    G = nx.barbell_graph(3, 0)
+    C = nx.spectral_bisection(G)
+    assert C == ({0, 1, 2}, {3, 4, 5})
+
+    mapping = dict(enumerate("badfec"))
+    G = nx.relabel_nodes(G, mapping)
+    C = nx.spectral_bisection(G)
+    assert C == (
+        {mapping[0], mapping[1], mapping[2]},
+        {mapping[3], mapping[4], mapping[5]},
+    )
+
+
 def check_eigenvector(A, l, x):
     nx = np.linalg.norm(x)
     # Check zeroness.
-    assert not nx == pytest.approx(0, abs=1e-7)
+    assert nx != pytest.approx(0, abs=1e-07)
     y = A @ x
     ny = np.linalg.norm(y)
     # Check collinearity.