csv to sparse matrix in python

Question

I have a big csv file which lists connections between nodes in a graph. example:

0001,95784
0001,98743
0002,00082
0002,00091

So this means that

Answer 1

You might also be interested in Networkx, a pure python network/graphing package.

From the website:

NetworkX is a Python package for the creation, manipulation, and study of the structure, dynamics, and functions of complex networks.

>>> import networkx as nx
>>> G=nx.Graph()
>>> G.add_edge(1,2)
>>> G.add_node("spam")
>>> print G.nodes()
[1, 2, 'spam']
>>> print G.edges()
[(1, 2)]