Gd2ddlmZddlZddgZd dZd dZdS) )chainN tree_data tree_graphidchildrenc||dzkrtd|stdt j|stdkrt jdfdtt|j | |fg}|||<|S)aReturns data in tree format that is suitable for JSON serialization and use in Javascript documents. Parameters ---------- G : NetworkX graph G must be an oriented tree root : node The root of the tree ident : string Attribute name for storing NetworkX-internal graph data. `ident` must have a different value than `children`. The default is 'id'. children : string Attribute name for storing NetworkX-internal graph data. `children` must have a different value than `ident`. The default is 'children'. Returns ------- data : dict A dictionary with node-link formatted data. Raises ------ NetworkXError If `children` and `ident` attributes are identical. Examples -------- >>> from networkx.readwrite import json_graph >>> G = nx.DiGraph([(1, 2)]) >>> data = json_graph.tree_data(G, root=1) To serialize with json >>> import json >>> s = json.dumps(data) Notes ----- Node attributes are stored in this format but keys for attributes must be strings if you want to serialize with JSON. Graph and edge attributes are not stored. See Also -------- tree_graph, node_link_data, adjacency_data zG is not a tree.zG is not directed.zG is not weakly connected.z5The values for `id` and `children` must be different.c||}t|dkrgSg}|D]g}tt|j| |fg}||}|r||<||h|S)Nr)lendictrnodesitemsappend) nGnbrs children_childdc add_childrenridents Blib/python3.11/site-packages/networkx/readwrite/json_graph/tree.pyrztree_data..add_childrenFst t99>>I   EU175>//11UEN3CDDEEA UA&&A (   Q    ) number_of_nodesnumber_of_edges TypeError is_directednxis_weakly_connected NetworkXErrorr rr r)rrootrrdatars `` @rrrs h a//11A555*+++ ==??.,--- !! $ $64555 VWWW        agdm))++udm_== > >D!\$**DN Krctjfd|}|g}fd|D}j|fi|||S)aReturns graph from tree data format. Parameters ---------- data : dict Tree formatted graph data ident : string Attribute name for storing NetworkX-internal graph data. `ident` must have a different value than `children`. The default is 'id'. children : string Attribute name for storing NetworkX-internal graph data. `children` must have a different value than `ident`. The default is 'children'. Returns ------- G : NetworkX DiGraph Examples -------- >>> from networkx.readwrite import json_graph >>> G = nx.DiGraph([(1, 2)]) >>> data = json_graph.tree_data(G, root=1) >>> H = json_graph.tree_graph(data) See Also -------- tree_data, node_link_data, adjacency_data c|D]s}| }|||g}|r || fd|D}j|fi|tdS)NcNi|]!\}}|k |kt||"Sstr.0kvrrs r z4tree_graph..add_children..s9"aa5jjQ(]]A]]]r)add_edgegetradd_node) parentrr#r grandchildrennodedatarrgraphrs rrz tree_graph..add_childrenys . .DKE NN65 ) ) ) HHXr22M 3 UM222&*jjllH EN5 - -H - - - - . .rcNi|]!\}}|k |kt||"Sr'r(r*s rr.ztree_graph..s2SSSdaa5jjQ(]]A]]]r)rDiGraphr0rr1)r#rrr"rr4rr5s `` @@rrrXs> JLLE . . . . . . . . ;D2&&ISSSSSdjjllSSSHEN4$$8$$$Ly!!! Lr)rr) itertoolsrnetworkxr__all__rrr'rrr;sd  %MMMM`222222r