[PyFeyn] PyFeyn error with fd.draw

Ian Brock brock at physik.uni-bonn.de
Tue Jun 7 10:31:25 BST 2016


Hi Georg,

I tried that and it did not help:
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(), 0.01)
TypeError: normpath_selfintersections() missing 1 required positional argument: 'eps_comparepairs'

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 11:27, Georg von Hippel <hippel at uni-mainz.de> wrote:
> 
> 
> Hi Ian,
> 
> can you try removing the "epsilon=" in front of the 0.01 in lines.py:522? Maybe that's enough to get it to run with your setup.
> 
> Best,
> 
>   Georg
> 
> 
> On Tue, 7 Jun 2016, Ian Brock wrote:
> 
>> 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> <mailto: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 <mailto: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>> <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>>>
>>>> 
>>>> 
>>>> 
>>>>> On 07 Jun 2016, at 09:48, Georg von Hippel <hippel at uni-mainz.de <mailto:hippel at uni-mainz.de> <mailto: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>>> <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 <mailto:brock at physik.uni-bonn.de>>>>
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>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> ---
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>>> 
>>> --
>>> ===========================================================================
>>> 
>>> 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 <mailto:hippel at kph.uni-mainz.de>
>>> Germany                                 wwwth.kph.uni-mainz.de/1205.php <http://wwwth.kph.uni-mainz.de/1205.php>
>>> 
>>> ===========================================================================
>> 
>> 
> 
> -- 
> ===========================================================================
> 
> 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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