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# Hello World
def say_hello():
    print "Hello World!"

'''
Multiline String Comment Style1
Hello
'''        

import pyximport; pyximport.install()

# compile-time constant
DEF _LIST = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29]

# preprocessor conditional statements
IF UNAME_SYSNAME == "Windows":
    include "windows.pxi"
ELIF UNAME_SYSNAME == "Linux":
    include "linux.pxi"
ELSE:
    include "misc.pxi"

"""
Multiline String Comment Style2
Hello, again
"""

def primes(int kmax):
    """Function documentation comment
    SOURCE: http://docs.cython.org/src/tutorial/cython_tutorial.html
    """
    cdef int n, k, i
    cdef int p[1000]
    result = []
    if kmax > 1000:
        kmax = 1000
    k = 0
    n = 2
    while k < kmax:
        i = 0
        while i < k and n % p[i] != 0:
            i = i + 1
        if i == k:
            p[k] = n
            k = k + 1
            result.append(n)
        n = n + 1
    return result

# cdef examples
cdef int i, j, k
cdef float f, g[42], *h

# struct, union, and enum data-types
cdef struct Car:
    int age
    float mileage

cdef union Country:
    char *name
    int *population

cdef enum Planets:
    Earth, Mars,
    Saturn

cdef enum PlanetType:
    dwarf = 1
    giant = 2
    regular = 3

# raise example
# SOURCE: http://docs.cython.org/src/userguide/language_basics.html#checking-return-values-of-non-cython-functions
cdef FILE* p
p = fopen('spam.txt', 'r')
if p == NULL:
    raise SpamError('Couldn\'t open the spam file')