AttributeError: 'Graph' object has no attribute 'node'

Question

I have bellow python code to build knn graph but I have an error: AttributeError: 'Graph' object has no attribute 'node'. It seems that the nx.Graph() has no node attribute but I don't know what should I replace with that.

import networkx as nx
def knn_graph(df, k, verbose=False):
    points = [p[1:] for p in df.itertuples()]
    g = nx.Graph()
    if verbose: print ("Building kNN graph (k = %d)" % (k))
    iterpoints = tqdm(enumerate(points), total=len(points)) if verbose else enumerate(points)
    for i, p in iterpoints:
        distances = map(lambda x: euclidean_distance(p, x), points)
        closests = np.argsort(distances)[1:k+1] # second trough kth closest
        for c in closests:
            g.add_edge(i, c, weight=distances[c])
        g.node[i]['pos'] = p
    return g

@Guy I'm sorry but it doesn't work. beacuse i have an error on it: line 178, in __getitem__return self._nodes[n] — nino, Oct 23 '19 at 08:58

score 52 · Answer 1 · edited May 25 '23 at 22:34

52

If you are using NetworkX 2.4, use G.nodes[] instead of G.node[]. The latter attribute is deprecated. See the release notes.

edited May 25 '23 at 22:34

cottontail

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answered Oct 28 '19 at 20:34

Zechen Zhang

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In my case, I installed NetworkX 2.0 to solve the error. – goe Aug 07 '20 at 07:27

score 0 · Answer 2 · answered Apr 25 '21 at 06:42

I had the same issue. I'm using Anaconda3. pip uninstall networkx did not work in Anaconda command window. I opened Anaconda powershell and did pip uninstall networkx and then came back to Anaconda command window to pip install networkx==2.3

After this the error is resolved

AttributeError: 'Graph' object has no attribute 'node'

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