implementation of a finite MPS class

conftest.py

@@ -18,9 +18,9 @@
 import tensorflow as tf
 
 
-@pytest.fixture(name="backend", params=["numpy", "tensorflow",
-                                        "jax", "pytorch"])
-def backend_fixure(request):
+@pytest.fixture(
+    name="backend", params=["numpy", "tensorflow", "jax", "pytorch"])
+def backend_fixture(request):
   return request.param
 
 

tensornetwork/__init__.py

@@ -1,8 +1,8 @@
-
 from tensornetwork.network import TensorNetwork
 from tensornetwork.network_components import Node, Edge, CopyNode, BaseNode
 #pylint: disable=line-too-long
-from tensornetwork.network_operations import conj, copy, transpose, split_node, split_node_qr, split_node_rq, split_node_full_svd, reachable, check_connected, check_correct, get_all_nodes, get_all_edges, remove_node, contract_trace_edges
+
+from tensornetwork.network_operations import conj, copy, transpose, split_node, split_node_qr, split_node_rq, split_node_full_svd, reachable, check_connected, check_correct, get_all_nodes, get_all_edges, remove_node, contract_trace_edges, norm
 
 from tensornetwork.network_components import contract, contract_copy_node, contract_between, outer_product, outer_product_final_nodes, contract_parallel, flatten_edges, get_all_nondangling, get_all_dangling, flatten_all_edges, flatten_edges_between, get_parallel_edges, get_shared_edges
 

tensornetwork/matrixproductstates/__init__.py

@@ -0,0 +1 @@
+from tensornetwork.matrixproductstates import mps