docs/examples/userguide/parallelism/breaking_loop.pyx


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

from cython.parallel import prange


cdef int func(Py_ssize_t n) except -1:
    cdef Py_ssize_t i

    for i in prange(n, nogil=True):
        if i == 8:
            with gil:
                raise Exception()
        elif i == 4:
            break
        elif i == 2:
            return i