[igraph] error calling g.simplify()

[Ahmed Abdeen Hamed]

Hello friends,

I load my graph from a CSV file and I think call the g.simplify() function, then I get this error:

TypeError: string or unicode object expected

Unless I am mistaken, there might be a character encoding issues in one of my nodes. I just don't know what line number this is. Any clue on how to resolve this error?

Thanks very much,

-Ahmed