Correct position of edge labels in a graph plot using networkx

Question

I have a piece of code to draw a graph. For this I am reading some files to get the nodes and the weights.

plt.title('Grafo Completo Github')
pos = nx.spring_layout(g)
nx.draw(g, with_labels=True, node_color="skyblue", font_size=8)
nx.draw_networkx_edge_labels(g, pos=pos, edge_labels=nx.get_edge_attributes(g, 'weight'), label_pos=1,  rotate=False, font_size=8)
plt.savefig("grafo_github.jpg")
plt.show()

But, this produces the image below. How can I correct the positions of edge labels? Edge Labels in wrong position:

Answer 1

The real mistake seems to be the value of the attribute label_pos.
From the docs of draw_networkx_edge_labels:

label_pos (float) – Position of edge label along edge (0=head, 0.5=center, 1=tail)

By using label_pos=1 the labels were appearing behind the nodes since their position is also on 'the edge tail'. Changing this value to 0.5 should solve the issue:

nx.draw_networkx_edge_labels(T, pos, edge_labels=nx.get_edge_attributes(T, 'weight'), label_pos=0.5, rotate=False, font_size=8)

Or, since 0.5 is default, simply remove it.

pos = nx.spring_layout(g)
nx.draw(g, pos=pos, with_labels=True, node_color="skyblue", font_size=8)
nx.draw_networkx_edge_labels(T, pos, edge_labels=nx.get_edge_attributes(T, 'weight'), rotate=False, font_size=8)