Question

I’d like to do the following:

cdef extern from "foo.h" namespace "foo":
    int bar(int, int)

def bar(a, b):
    return foo.bar(a, b)

But this does not work. What is the namespace "foo" part for ? And how can I achieve to load the functions externed from “foo.h” into an object named foo ?

Update:

I could find a solution using the following file-structure and code:

spam.pyx
spam_c.pxd
c\
  spam.c

# spam.pyx
cimport spam_c as spam

def foo(a, b):
    return spam.foo(a, b)

# spam_c.pxd
cdef extern from "spam.c":
    double foo(double, double)

Is there a better way to solve this ?

Answer 1

I have found out that this is the preferred way to deal with this.