In a message of Tue, 18 Aug 2015 10:13:57 +1000, Chris Angelico writes: >On Tue, Aug 18, 2015 at 8:09 AM, Ping Liu <yanzhiping...@gmail.com> wrote: >> If I move from Python to Jython or IronPython, do I need to retool whatever >> I have done? If so, that may take quite a long time. This may make the >> reimplementation impossible. > >You're not moving from Python to something else; you're moving from >CPython to something else. It's like moving from Borland's C compiler >to Watcom's C compiler - all your code should still run unchanged. >There will be differences, but the bulk of your code shouldn't need >changing. With Python interpreters, the usual difference is extension >libraries - CPython can call on a bunch of things implemented in >native code, Jython can call on a bunch of things implemented in Java, >etc. > >ChrisA
Unless, as I expect, what he has done uses Numpy and or SciPy a lot. Enthought is no longer supporting NumPy for IronPython (and it never worked all that well, anyway, I am told ... but I never used it myself). Even the maintainer of Jnumeric (which is trying to do Numeric not NumPy) thinks the Jnumeric project should die. http://stackoverflow.com/questions/18832169/numpy-analog-for-jython We already know that Ping has a really big C extension he needs to work with -- CPLEX, and well, here he may be in luck as there are java versions of CPLEX and there is something called the CPLEX/Concert .NET API which may -- I never tried this -- let him work with Iron Python. But that is one lirary. If he has many more C extensions he needs to use, then this could mean retooling them. Laura -- https://mail.python.org/mailman/listinfo/python-list
