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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Hello!<br>
I would like to use PyFeyn for drawing Feynman diagrams. For this I made a system wide installation with<br>
<br>
sudo python setup.py install<br>
<br>
and tested the example <a href="http://pyfeyn.hepforge.org/pyfeyn-test1.py" target="_blank">
http://pyfeyn.hepforge.org/pyfeyn-test1.py</a><br>
<br>
However, I immediately got a problem which has to do with pyfeyn and pyx - see below. What is going wrong?<br>
<br>
Cheers,<br>
Viesturs<br>
<br>
v@viesturs_lip:~$ python test_pyfeyn.py <br>
Traceback (most recent call last):<br>
File "test_pyfeyn.py", line 26, in <module><br>
fd.draw("pyfeyn-test1.pdf")<br>
File "/usr/local/lib/python2.7/dist-packages/pyfeyn/diagrams.py", line 69, in draw<br>
c = self.drawToCanvas()<br>
File "/usr/local/lib/python2.7/dist-packages/pyfeyn/diagrams.py", line 61, in drawToCanvas<br>
obj.draw(self.currentCanvas)<br>
File "/usr/local/lib/python2.7/dist-packages/pyfeyn/lines.py", line 329, in draw<br>
canvas.stroke(path, styles)<br>
File "/usr/lib/python2.7/dist-packages/pyx/canvas.py", line 298, in stroke<br>
self.draw(path, [deco.stroked]+list(attrs))<br>
File "/usr/lib/python2.7/dist-packages/pyx/canvas.py", line 284, in draw<br>
adeco.decorate(dp, self.texrunner)<br>
File "/usr/local/lib/python2.7/dist-packages/pyfeyn/deco.py", line 46, in decorate<br>
1, self.size, 45, constrictionlen)<br>
File "/usr/local/lib/python2.7/dist-packages/pyfeyn/deco.py", line 16, in getarrowpath<br>
1, selfsize, 45, self.constriction,<br>
NameError: global name 'self' is not defined<br>
<br>
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