Re: [igraph] Cannot convert directed graph into undirected graph using python

[Gábor Csárdi]

More seriously, in Python, objects are usually mutable, and their member functions modify them in place. E.g. see this:

>>> l=[1,2,3,4]

>>> p=l.append([5,6,6])

>>> print p

None

igraph's Python interface conforms to this standard. g.to_undirected() converts g to undirected in place, and returns None.

Gabor

On Fri, Feb 21, 2014 at 7:07 PM, Gábor Csárdi <address@hidden> wrote:

On Fri, Feb 21, 2014 at 6:55 PM, Salvatore Palomino <address@hidden> wrote:

Hello!

I am trying to convert my directed graph g into an undirected graph using to_undirected().

<< g = GraphBase.Read_Pajek("C:/Users/Palomino/Downloads/109Senate-Rows.net")

<< g = g.to_undirected(False)

<< print g

None

I don't know why it returns None. Can you help me out?

What should it return? The result of the conversion is in g, it does it in place.

G.

 

 

Thanks!!!

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