i solved it i have to gunzip the file twice! first you should download the file pgp.xml.gz from the link mentioned before -gunzip pgp.xml.gz to pgp.xml-rename pgp.xml to pgp.xml.gz-gunzip pgp.xml.gz to pgp.xmlafter finishing above 3 steps, you can run gt_bench.py to test performance thanks Zhao Jun From: zhaojun12@outlook.com To: graph-tool@skewed.de Date: Mon, 13 Apr 2015 10:31:04 +0800 Subject: [graph-tool] unable to load pgp.xml hi all, i am new to graph tool, and i encounter a problem i got the performance test files from http://graph-tool.skewed.de/performance when i run gt_bench.py, it shows [zhaojun@fedora performance]$ python gt_bench.py Traceback (most recent call last): File "gt_bench.py", line 6, in <module> g = load_graph("pgp.xml") File "/usr/lib/python2.7/site-packages/graph_tool/__init__.py", line 2352, in load_graph g.load(file_name, fmt, ignore_vp, ignore_ep, ignore_gp) File "/usr/lib/python2.7/site-packages/graph_tool/__init__.py", line 1989, in load ignore_ep, ignore_gp)IOError: error reading from file 'pgp.xml':parse error: on line 1, column 0: not well-formed (invalid token) i have no idea whether it is something related with the formate of xml file or with the graph tool API i installed thanks Zhao Jun _______________________________________________ graph-tool mailing list graph-tool@skewed.de http://lists.skewed.de/mailman/listinfo/graph-tool