p2g
===

>>> from networkx import *
>>> from networkx.operators import *
>>> import os,tempfile


>>> import os,tempfile

>>> data="""*network Tralala\n*vertices 4\n   1 "A1"         0.0938 0.0896   ellipse x_fact 1 y_fact 1\n   2 "Bb"         0.8188 0.2458   ellipse x_fact 1 y_fact 1\n   3 "C"          0.3688 0.7792   ellipse x_fact 1\n   4 "D2"         0.9583 0.8563   ellipse x_fact 1\n*arcs\n1 1 1  h2 0 w 3 c Blue s 3 a1 -130 k1 0.6 a2 -130 k2 0.6 ap 0.5 l "Bezier loop" lc BlueViolet fos 20 lr 58 lp 0.3 la 360\n2 1 1  h2 0 a1 120 k1 1.3 a2 -120 k2 0.3 ap 25 l "Bezier arc" lphi 270 la 180 lr 19 lp 0.5\n1 2 1  h2 0 a1 40 k1 2.8 a2 30 k2 0.8 ap 25 l "Bezier arc" lphi 90 la 0 lp 0.65\n4 2 -1  h2 0 w 1 k1 -2 k2 250 ap 25 l "Circular arc" c Red lc OrangeRed\n3 4 1  p Dashed h2 0 w 2 c OliveGreen ap 25 l "Straight arc" lc PineGreen\n1 3 1  p Dashed h2 0 w 5 k1 -1 k2 -20 ap 25 l "Oval arc" c Brown lc Black\n3 3 -1  h1 6 w 1 h2 12 k1 -2 k2 -15 ap 0.5 l "Circular loop" c Red lc OrangeRed lphi 270 la 180"""


>>> G=parse_pajek(data)

>>> print sorted(G.nodes())
['A1', 'Bb', 'C', 'D2']

>>> print [(u,v) for (u,v,d) in sorted(G.edges())]
[('A1', 'A1'), ('A1', 'Bb'), ('A1', 'C'), ('Bb', 'A1'), ('C', 'C'), ('C', 'D2'), ('D2', 'Bb')]

>>> (fd,fname)=tempfile.mkstemp()
>>> fh=open(fname,'w')
>>> fh.write(data)
>>> fh.close()
>>> Gin=read_pajek(fname)
>>> sorted(G.nodes())==sorted(Gin.nodes())
True
>>> sorted(G.edges())==sorted(Gin.edges())
True
>>> os.close(fd)
>>> os.unlink(fname)

>>> (fd,fname)=tempfile.mkstemp()

>>> write_pajek(G,fname)
>>> H=read_pajek(fname)
>>> sorted(H.nodes())==sorted(G.nodes())
True
>>> eg=[(u,v) for (u,v,d) in G.edges()]
>>> eh=[(u,v) for (u,v,d) in H.edges()]
>>> sorted(eg)==sorted(eh)
True

