garyr schrieb am 30.05.2015 um 18:22:
> I'm trying to create an extension module using SWIG. I've
> succeeded in generating a pyd file but when I import the module I get the
> error message: "SystemError: dynamic module not initialized properly." I
> added an initfoo() function but that didn't solve the problem. Below are the
> various files, a slightly modified version of a SWIG exmaple.
> I'm using Python 2.7
>
> What am I missing?
>
> //foo.c:
> #include "foo.h"
> double Foo;
> void initfoo()
> {
> Foo = 3.0;
> }
This is wrong and you also won't need that.
> int gcd(int x, int y) {
> int g;
> g = y;
> while (x > 0) {
> g = x;
> x = y % x;
> y = g;
> }
> return g;
> }
> [...]
Just in case you're not bound to SWIG yet, here's a Cython [1] version of
your code:
# put this in a file called "foo.pyx"
def gcd(int x, int y):
while x > 0:
y, x = x, y % x
return y
Compile it ("cythonize -b foo.pyx") and you'll get an extension module that
executes faster than what SWIG would give you and keeps everything in one
file to improve readability.
Stefan
[1] http://cython.org/
--
https://mail.python.org/mailman/listinfo/python-list
