Graphml parse error

Question

I tried to create a graphml file using python and igraph library. I can construct igraph's graph object and wrote it to a file using:

g.write_graphml("mygraph.graphml")

Everything seems to be successful but when I tried to read the file back to python using:

g = Graph.Read_GraphML('mygraph.graphml')

I got this error:

igraph.core.InternalError: Error at .\src\foreign-graphml.c:1024: 
Input is not proper UTF-8, indicate encoding ! Bytes: 0xA0 0x3C 0x2F 0x64

How can I solve this, please? Thank you very much.

Do you have any special characters (e.g., accented letters or letters from Asian scripts) in your vertex or edge attributes? — Tamás, Jan 21 '12 at 20:07

Do 1 in 10 pow 88 is soulmate · Answer 1 · 2012-01-22T01:42:59.287

1

I already see the libary source code. I think library can output only UTF-8 XML Encoding. So all character must be UTF-8 encoding and if some non-UTF-8 character contains in file, Errors will be raised.

The Solution:

You should convert all string in your python application to UTF-8 encoding before use as describe here

Hope this help.

edited Jan 22 '12 at 01:42

answered Jan 22 '12 at 01:15

Do 1 in 10 pow 88 is soulmate

11
3

score 0 · Answer 2 · answered Feb 05 '12 at 00:06

I think problem should come from Unicode invalid bytes sequence problem but without your file I can only guess.

I think you may load string from non-Unicode encoding file and use it directly without convert to Unicode encoding. Please try convert these strings to Unicode by see this post.

a busy cat http://goo.gl/CFGYf

Graphml parse error

2 Answers2

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