Hello Everybody !!
I am currently writing a small patch to expose the write_graphml/gml
methods from the NetworkX library, and I noticed while testing he
docstrings that if write_gml worked perfectly, the read_gml was not
working at all (yes, I wrote the whole patch before actually trying to
use the method manually).
Here is the answer given by Sage in this case :
sage: networkx.read_gml(SAGE_TMP+"/g.gml")
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
/home/ncohen/<ipython console> in <module>()
/home/ncohen/.Sage/local/lib/python/networkx/readwrite/gml.pyc in read_gml(path)
69 """
70 fh=_get_fh(path,mode='r')
---> 71 G=parse_gml(fh)
72 return G
73
/home/ncohen/.Sage/local/lib/python/networkx/readwrite/gml.pyc in
parse_gml(lines)
117 except ImportError:
118 raise ImportError, \
--> 119 "Import Error: not able to import pyparsing:
http://pyparsing.wikispaces.com/";
120
121 try:
ImportError: Import Error: not able to import pyparsing:
http://pyparsing.wikispaces.com/
This is clear enough. Well, I'd very much like to be able to
read/write graph files, if possible at no programming cost by adding
Pyparsing to Sage, though I do not think adding a new package just to
read/write graph files is really smart... Do you think this package
should/could be added, an that it could be used elsewhere ?
Thank you for your answers !!!
Nathann
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