On 2016-11-25 20:30-0500 Hazen Babcock wrote:
>
> Hello,
>
> I would like to fix PLplot so that it works with Python3. At a minimum
> it looks like this means fixing all the print statements, i.e.:
>
> print "asdf" -> print("asdf")
>
> I'll test against Python2.7. Do I also need to test against Python2.6?
> Or is that far enough in the past that we don't support it anymore?
Hi Hazen:
I thoroughly approve of your above goal.
The last release for 2.6.x was in 2013, but some of the key python3
syntax such as print(<string>) were backported to it so by accident it
might still work for us once you are done. But I suggest for now you
concentrate on python-2.7 (which also includes the same backported
Python 3 syntax) and Python 3.x.
With regard to the bindings, have you seen
<http://www.swig.org/Doc1.3/Python.html#Python_python3support>? It
appears a very tiny modification (using the -py3 command line option
for swig) of our present python bindings may be all you need to generate
python3 bindings. So have fun experimenting with that option to
see how far you get!
With regard to the examples, they are really simple python code.
Apparently, there is a script that converts
python2 scripts to python-3 compatibility. I presume most of what
that script would change would be print statements (to move from the
"print <string>" to "print(<string>)" form). And with any luck at all,
those new results would work both with python 2.7 (which supports
"print(<string>)" and some other python-3 syntax) and python 3.x.
Good luck with this project!
Alan
__________________________
Alan W. Irwin
Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).
Programming affiliations with the FreeEOS equation-of-state
implementation for stellar interiors (freeeos.sf.net); the Time
Ephemerides project (timeephem.sf.net); PLplot scientific plotting
software package (plplot.sf.net); the libLASi project
(unifont.org/lasi); the Loads of Linux Links project (loll.sf.net);
and the Linux Brochure Project (lbproject.sf.net).
__________________________
Linux-powered Science
__________________________
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