[PyFeyn] pyfeyn in ubuntu 13.10

[George S. Williams]

Hello, Alejandro,

There is a bug in pyfeyn-0.3.4. In the file deco.py, change line 16 from

1, selfsize, 45, self.constriction,

to

1, selfsize, 45, 1,

I think that this will solve your problem.

Let me know if this works and have fun making Feynman Diagrams.

George S. Williams


On 3/25/2014 11:07 PM, Alejandro Gomez Espinosa wrote:
> Hi
>
> I was trying to use your package and I found an error. First I 
> installed your package like:
> sudo python setup.py install
> seems like is working because I opened python and I could import that 
> package. But when I copied the first of your examples, in a file 
> inside the untar folder, I got this error:
>
> Traceback (most recent call last):
>   File "./test.py", line 17, in <module>
>     fd.draw("pyfeyn-test4.pdf")
>   File "/home/algomez/Downloads/pyfeyn-0.3.4/pyfeyn/diagrams.py", line 
> 69, in draw
>     c = self.drawToCanvas()
>   File "/home/algomez/Downloads/pyfeyn-0.3.4/pyfeyn/diagrams.py", line 
> 61, in drawToCanvas
> obj.draw(self.currentCanvas)
>   File "/home/algomez/Downloads/pyfeyn-0.3.4/pyfeyn/lines.py", line 
> 329, in draw
>     canvas.stroke(path, styles)
>   File "/usr/lib/python2.7/dist-packages/pyx/canvas.py", line 298, in 
> stroke
>     self.draw(path, [deco.stroked]+list(attrs))
>   File "/usr/lib/python2.7/dist-packages/pyx/canvas.py", line 284, in draw
>     adeco.decorate(dp, self.texrunner)
>   File "/home/algomez/Downloads/pyfeyn-0.3.4/pyfeyn/deco.py", line 46, 
> in decorate
>     1, self.size, 45, constrictionlen)
>   File "/home/algomez/Downloads/pyfeyn-0.3.4/pyfeyn/deco.py", line 16, 
> in getarrowpath
>     1, selfsize, 45, self.constriction,
> NameError: global name 'self' is not defined
>
> any ideas? I will love to create Feynman Diagrams in python!! :D
>
> cheers,
>
> */Alejandro Gomez Espinosa /*
> /Department of Physics and Astronomy /
> /Rutgers, The State University of New Jersey /
> /136 Frelinghuysen Road /
> /Piscataway, NJ 08854-8019 USA/
>

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