[PyFeyn] PyFeyn error with fd.draw

Ian Brock brock at physik.uni-bonn.de
Tue Jun 7 10:20:31 BST 2016
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Hi Georg,

Yes, I’m sure. pyfeyn-test2.py worked! Heres the output!

In [1]: %run pyfeyn-test1.py
/usr/local/texlive/2015/texmf-dist/tex/latex/hepnames/hepnicenames.sty
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
/Users/brock/Downloads/pyfeyn-test1.py in <module>()
     24 glu.addParallelArrow(size=0.1, displace=0.2, sense=-1)
     25 
---> 26 fd.draw("pyfeyn-test1.pdf")

/opt/local/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pyfeyn/diagrams.py in draw(self, outfile, enlargement)
     68         """Draw the diagram to a file, with the filetype (EPS or PDF)
     69         derived from the file extension."""
---> 70         c = self.drawToCanvas()
     71         if c is not None and outfile is not None:
     72             if pyxversion >= Version("0.12"):

/opt/local/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pyfeyn/diagrams.py in drawToCanvas(self)
     60             if config.getOptions().DEBUG:
     61                 print("Depth = ", obj.getDepth())
---> 62             obj.draw(self.currentCanvas)
     63 
     64         return self.currentCanvas

/opt/local/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pyfeyn/lines.py in draw(self, canvas)
    520         else:
    521             para = pyx.deformer.parallel(0.001)
--> 522             ass, bs, cs = para.normpath_selfintersections(mypath.normpath(), epsilon=0.01)
    523             coil_params = []
    524             for b in bs:

TypeError: normpath_selfintersections() missing 1 required positional argument: 'eps_comparepairs'

In [2]: print(pyx.__version__)
0.13

Best Regards
Ian

Ian C. Brock | Physikalisches Institut, Universität Bonn | Nußallee 12 | D-53115 Bonn
Tel. +49 228 733616 | Email: brock at physik.uni-bonn.de <mailto:brock at physik.uni-bonn.de>



> On 07 Jun 2016, at 10:47, Georg von Hippel <hippel at uni-mainz.de> wrote:
> 
> 
> Hi Ian,
> 
> PyX 0.12.x is for Python 2.x and won't work with Python 3.x. I'm confused about the error using PyX 0.13, though -- are you sure that it isn't actually using the more recent version of PyX still?
> 
> Best,
> 
>   Georg
> 
> 
> On Tue, 7 Jun 2016, Ian Brock wrote:
> 
>> Hi Georg,
>> 
>> I used pip to install version PyX 0.13. I got errors from pip when trying to install 0.12.1.
>> pyfeyn-test1.py still does not work, while pyfeyn-test2.py seems to work?
>> 
>> brock at ltbrock:~/Downloads$ python pyfeyn-test1.py
>> /usr/local/texlive/2015/texmf-dist/tex/latex/hepnames/hepnicenames.sty
>> Traceback (most recent call last):
>> File "pyfeyn-test1.py", line 26, in <module>
>>   fd.draw("pyfeyn-test1.pdf")
>> File "/opt/local/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pyfeyn/diagrams.py", line 70, in draw
>>   c = self.drawToCanvas()
>> File "/opt/local/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pyfeyn/diagrams.py", line 62, in drawToCanvas
>>   obj.draw(self.currentCanvas)
>> File "/opt/local/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pyfeyn/lines.py", line 522, in draw
>>   ass, bs, cs = para.normpath_selfintersections(mypath.normpath(), epsilon=0.01)
>> TypeError: normpath_selfintersections() missing 1 required positional argument: 'eps_comparepairs'
>> brock at ltbrock:~/Downloads$ python pyfeyn-test2.py
>> /usr/local/texlive/2015/texmf-dist/tex/latex/hepnames/hepnicenames.sty
>> Ignoring line 16918 in mapping file 'pdftex.map': Unknown token '<MinLibBol'
>> Ignoring line 16919 in mapping file 'pdftex.map': Unknown token '<MinLibBol'
>> Ignoring line 16920 in mapping file 'pdftex.map': Unknown token '<MinLibBol'
>> Ignoring line 16921 in mapping file 'pdftex.map': Unknown token '<MinLibBolIta'
>> Ignoring line 16922 in mapping file 'pdftex.map': Unknown token '<MinLibBolIta'
>> Ignoring line 16923 in mapping file 'pdftex.map': Unknown token '<MinLibBolIta'
>> Ignoring line 16924 in mapping file 'pdftex.map': Unknown token '<MinLibIta'
>> Ignoring line 16925 in mapping file 'pdftex.map': Unknown token '<MinLibIta'
>> Ignoring line 16926 in mapping file 'pdftex.map': Unknown token '<MinLibIta'
>> Ignoring line 16927 in mapping file 'pdftex.map': Unknown token '<MinLibReg'
>> Ignoring line 16928 in mapping file 'pdftex.map': Unknown token '<MinLibReg'
>> Ignoring line 16929 in mapping file 'pdftex.map': Unknown token '<MinLibReg'
>> 
>> Best Regards
>> Ian
>> 
>> Ian C. Brock | Physikalisches Institut, Universität Bonn | Nußallee 12 | D-53115 Bonn
>> Tel. +49 228 733616 | Email: brock at physik.uni-bonn.de <mailto:brock at physik.uni-bonn.de> <mailto:brock at physik.uni-bonn.de <mailto:brock at physik.uni-bonn.de>>
>> 
>> 
>> 
>>> On 07 Jun 2016, at 09:48, Georg von Hippel <hippel at uni-mainz.de <mailto:hippel at uni-mainz.de>> wrote:
>>> 
>>> 
>>> Hi,
>>> 
>>> this is a perpetual annoyance with PyX -- it does not provide a stable API, and every time they publish a new version, new workaround code is needed.
>>> 
>>> Pyfeyn works with 0.12.x and 0.13.x, but apparently 0.14.x breaks yet another interface (specifically normpath_selfintersections, which appears to require an additional argument). This will need yet another workaround. Ugh.
>>> 
>>>> From the name of the required argument eps_comparepairs, I suspect it may
>>> be enough to replace the "epsilon=0.01" with simply "0.01" on line 522 of lines.py in order to make the code run (quite possibly with all version of PyX), but that needs checking.
>>> 
>>> Best,
>>> 
>>>  Georg
>>> 
>>> 
>>> On Mon, 6 Jun 2016, George S. Williams wrote:
>>> 
>>>> Hey, Ian,
>>>> 
>>>> Sorry you're having a problem with PyFeyn. I think the problem is actually with PyX- they change an API and any code that relied on that API call from a previous version is broken. We've had that problem in the past.
>>>> 
>>>> Would you please let us know which versions of PyX and PyFeyn you have installed?
>>>> 
>>>> Thanks,
>>>> George
>>>> 
>>>> 
>>>> On 6/6/2016 12:20 PM, Ian Brock wrote:
>>>>> Dear PyFeyn,
>>>>> I get an error when trying to run the first PyFeyn test file:
>>>>> python pyfeyn-test1.py
>>>>> /usr/local/texlive/2015/texmf-dist/tex/latex/hepnames/hepnicenames.sty
>>>>> Traceback (most recent call last):
>>>>> File "pyfeyn-test1.py", line 26, in <module>
>>>>> fd.draw("pyfeyn-test1.pdf")
>>>>> File "/opt/local/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pyfeyn/diagrams.py", line 70, in draw
>>>>>   c = self.drawToCanvas()
>>>>> File "/opt/local/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pyfeyn/diagrams.py", line 62, in drawToCanvas
>>>>> obj.draw(self.currentCanvas)
>>>>> File "/opt/local/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pyfeyn/lines.py", line 522, in draw
>>>>>   ass, bs, cs = para.normpath_selfintersections(mypath.normpath(), epsilon=0.01)
>>>>> TypeError: normpath_selfintersections() missing 1 required positional argument: 'eps_comparepairs'
>>>>> I am using Python3.5 installed via Macports.
>>>>> I installed PyX and PyFeyn via pip. This worked without any error messages.
>>>>> I tested hepnames in test file and it works fine.
>>>>> Best Regards
>>>>> Ian
>>>>> *Ian C. Brock* | Physikalisches Institut, Universität Bonn | Nußallee 12 | D-53115 Bonn
>>>>> Tel. +49 228 733616 | Email: brock at physik.uni-bonn.de <mailto:brock at physik.uni-bonn.de> <mailto:brock at physik.uni-bonn.de <mailto:brock at physik.uni-bonn.de>> <mailto:brock at physik.uni-bonn.de <mailto:brock at physik.uni-bonn.de> <mailto:brock at physik.uni-bonn.de <mailto:brock at physik.uni-bonn.de>>>
>>>>> _______________________________________________
>>>>> PyFeyn mailing list
>>>>> PyFeyn at projects.hepforge.org <mailto:PyFeyn at projects.hepforge.org> <mailto:PyFeyn at projects.hepforge.org <mailto:PyFeyn at projects.hepforge.org>>
>>>>> https://www.hepforge.org/lists/listinfo/pyfeyn <https://www.hepforge.org/lists/listinfo/pyfeyn> <https://www.hepforge.org/lists/listinfo/pyfeyn <https://www.hepforge.org/lists/listinfo/pyfeyn>>
>>>> 
>>>> 
>>>> 
>>>> 
>>>> ---
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>>>> https://www.avast.com/antivirus <https://www.avast.com/antivirus> <https://www.avast.com/antivirus <https://www.avast.com/antivirus>>
>>>> 
> 
> -- 
> ===========================================================================
> 
> PD Dr. Georg von Hippel
> Institut für Kernphysik                 Office: 01-226 (Neubau)
> Johannes Gutenberg-Universität Mainz    Phone:  +49 6131 39-22933
> Johann-Joachim-Becher-Weg 45            Fax:    +49 6131 39-22964
> 55099 Mainz                             Email:  hippel at kph.uni-mainz.de
> Germany                                 wwwth.kph.uni-mainz.de/1205.php
> 
> ===========================================================================

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