<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi Georg,<div class=""> </div><div class="">So I started from scratch and switched MacPorts to Homebrew (although I do not think this was relevant).</div><div class="">I can confirm that the tests work with Python 2.7 and PyX 0.12.1</div><div class="">pyfeyn-test1.py does not work with Python 3 and PyX 0.14 (from my previous tests today, also not with 0.13).</div><div class="">pyfeyn-test2.py does work with Python 3 and PyX 0.14.</div><div class=""> <div class=""> <div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Best Regards</div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Ian</div><div class=""> </div></div><div class="">Ian C. Brock | Physikalisches Institut, Universität Bonn | Nußallee 12 | D-53115 Bonn</div><div style="margin: 0px;" class="">Tel. +49 228 733616 | Email: <a href="mailto:brock@physik.uni-bonn.de" class="">brock@physik.uni-bonn.de</a></div><div style="margin: 0px;" class=""> </div></div></div></div></div></div></div></div></div></div> </div> <div><blockquote type="cite" class=""><div class="">On 07 Jun 2016, at 12:21, Georg von Hippel <<a href="mailto:hippel@uni-mainz.de" class="">hippel@uni-mainz.de</a>> wrote:</div> <div class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Hi Ian,<br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">hmm, looks like there are some rather deep changes in the PyX code, then. We'll have to look into that in some more detail and add additional workarounds to Pyfeyn.<br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">However, it is very odd that Pyfeyn seems to no longer work with PyX 0.13, because I'm pretty sure it did before -- George made sure of that.<br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">I have checked that it definitely works with Python 2.7.6 and PyX 0.12.1, if that's any help to you.<br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Best,<br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class=""> Georg<br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">On Tue, 7 Jun 2016, Ian Brock wrote:<br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><blockquote type="cite" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class="">Hi Georg, Still no luck! brock@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, 0.01) File "/opt/local/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pyx/deformer.py", line 1517, in normpath_selfintersections dist = self.dist_pt AttributeError: 'parallel' object has no attribute 'dist_pt' Best Regards Ian Ian C. Brock | Physikalisches Institut, Universität Bonn | Nußallee 12 | D-53115 Bonn Tel. +49 228 733616 | Email: <a href="mailto:brock@physik.uni-bonn.de" class="">brock@physik.uni-bonn.de</a> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a>> <blockquote type="cite" class="">On 07 Jun 2016, at 11:39, Georg von Hippel <<a href="mailto:hippel@uni-mainz.de" class="">hippel@uni-mainz.de</a>> wrote: Hi Ian, ok, I looked at the PyX source code now. Apparently it now wants three arguments (none of which are optional now), so it should be something like para.normpath_selfintersections(mypath.normpath(), 0.01, 0.01) assuming that the eps_comparepairs should be similar to the epsilon. Hopefully that works. Best, Georg On Tue, 7 Jun 2016, Ian Brock wrote: <blockquote type="cite" class="">Hi Georg, I tried that and it did not help: brock@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: <a href="mailto:brock@physik.uni-bonn.de" class="">brock@physik.uni-bonn.de</a> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a>> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a>>> <blockquote type="cite" class="">On 07 Jun 2016, at 11:27, Georg von Hippel <<a href="mailto:hippel@uni-mainz.de" class="">hippel@uni-mainz.de</a> <<a href="mailto:hippel@uni-mainz.de" class="">mailto:hippel@uni-mainz.de</a>>> 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: <blockquote type="cite" class="">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: <a href="mailto:brock@physik.uni-bonn.de" class="">brock@physik.uni-bonn.de</a> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a>> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a>>> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a>> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a>>>> <blockquote type="cite" class="">On 07 Jun 2016, at 10:47, Georg von Hippel <<a href="mailto:hippel@uni-mainz.de" class="">hippel@uni-mainz.de</a> <<a href="mailto:hippel@uni-mainz.de" class="">mailto:hippel@uni-mainz.de</a>> <<a href="mailto:hippel@uni-mainz.de" class="">mailto:hippel@uni-mainz.de</a> <<a href="mailto:hippel@uni-mainz.de" class="">mailto:hippel@uni-mainz.de</a>>>> 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: <blockquote type="cite" class="">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@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@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: <a href="mailto:brock@physik.uni-bonn.de" class="">brock@physik.uni-bonn.de</a> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a>> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a><<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a>>> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a>> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a><<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a>>>> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a>> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a><<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a>>> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a>> <<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a><<a href="mailto:brock@physik.uni-bonn.de" class="">mailto:brock@physik.uni-bonn.de</a>>>>> <blockquote type="cite" class="">On 07 Jun 2016, at 09:48, Georg von Hippel <<a href="mailto:hippel@uni-mainz.de" class="">hippel@uni-mainz.de</a> <<a href="mailto:hippel@uni-mainz.de" class="">mailto:hippel@uni-mainz.de</a>> <<a href="mailto:hippel@uni-mainz.de" class="">mailto:hippel@uni-mainz.de</a> <<a href="mailto:hippel@uni-mainz.de" class="">mailto:hippel@uni-mainz.de</a>>> <<a href="mailto:hippel@uni-mainz.de" class="">mailto:hippel@uni-mainz.de</a> <<a href="mailto:hippel@uni-mainz.de" class="">mailto:hippel@uni-mainz.de</a>> <<a href="mailto:hippel@uni-mainz.de" class="">mailto:hippel@uni-mainz.de</a> <<a href="mailto:hippel@uni-mainz.de" class="">mailto:hippel@uni-mainz.de</a>>>>> 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. <blockquote type="cite" class="">From the name of the required argument eps_comparepairs, I suspect it may </blockquote>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: <blockquote type="cite" class="">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: <blockquote type="cite" class="">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. 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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: <a href="mailto:hippel@kph.uni-mainz.de" class="">hippel@kph.uni-mainz.de</a> Germany <a href="http://wwwth.kph.uni-mainz.de/1205.php" class="">wwwth.kph.uni-mainz.de/1205.php</a> =========================================================================== </blockquote> </blockquote><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; 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style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">PD Dr. Georg von Hippel<br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Institut für Kernphysik Office: 01-226 (Neubau)<br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; 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