letter ñ error when using matplotlib and networkx in python

Question

I have a problem, In my case I get names from a database, the error occurs when there is a name that contains letter Ñ for example a last name BOLAÑOS, I used # -- coding: utf8 -- but isn't enough. I read that matplotlib needs a file which should contain special characters. Thanks in advance

This is the code:

# -*- coding: utf8 -*-
import matplotlib.pyplot as plt
import networkx as nx
socialNetworl = nx.Graph()
socialNetworl.add_nodes_from([1,2,3,4,5,6])
socialNetworl.add_edges_from([(1,2),(1,3),(2,3),(2,5),(2,6)]) 
labels = {1:'King Bolaños', 2:'Lancelot', 3:'shopkeeper', 4:'dead parrot', 5:'Brian', 6:'Sir Robin'}
nx.draw(socialNetworl, node_size = 800, node_color="cyan", labels=labels, with_labels = True)
plt.show()

Aric · Accepted Answer · 2015-03-04 21:03:31Z

1

Matplotlib wants Python unicode (for Python2). So you can use

labels = {1:'King Bolaños'.decode('utf-8'), 2:'Lancelot', 3:'shopkeeper', 4:'dead parrot', 5:'Brian', 6:'Sir Robin'}

answered Mar 4, 2015 at 21:03

Aric

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4 Comments

GSandro_Strongs Over a year ago

thanks for your answer, but how can I do when the labels come from a database and I don't know where the letter Ñ appears?.

David Ehrmann Over a year ago

Make sure you get a unicode object from the database, not a str.

GSandro_Strongs Over a year ago

I'm using oracle database and cx_oracle libraries, how can I convert my str to unicode object?

Aric Over a year ago

You can just s.decode('utf-8') every string s if you want.

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