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cdef extern from "Python.h": 
    ctypedef long long PY_LONG_LONG 
    ctypedef unsigned long long uPY_LONG_LONG "unsigned PY_LONG_LONG" 
 
    ############################################################################ 
    # 7.2.3 Long Integer Objects 
    ############################################################################ 
 
    # PyLongObject 
    # 
    # This subtype of PyObject represents a Python long integer object. 
 
    # PyTypeObject PyLong_Type 
    # 
    # This instance of PyTypeObject represents the Python long integer 
    # type. This is the same object as long and types.LongType. 
 
    bint PyLong_Check(object p) 
    # Return true if its argument is a PyLongObject or a subtype of PyLongObject. 
 
    bint PyLong_CheckExact(object p) 
    # Return true if its argument is a PyLongObject, but not a subtype of PyLongObject. 
 
    object PyLong_FromLong(long v) 
    # Return value: New reference. 
    # Return a new PyLongObject object from v, or NULL on failure. 
 
    object PyLong_FromUnsignedLong(unsigned long v) 
    # Return value: New reference. 
    # Return a new PyLongObject object from a C unsigned long, or NULL on failure. 
 
    object PyLong_FromSsize_t(Py_ssize_t v)
    # Return value: New reference.
    # Return a new PyLongObject object from a C Py_ssize_t, or NULL on failure.)

    object PyLong_FromSize_t(size_t v)
    # Return value: New reference.
    # Return a new PyLongObject object from a C size_t, or NULL on failure.

    object PyLong_FromLongLong(PY_LONG_LONG v) 
    # Return value: New reference. 
    # Return a new PyLongObject object from a C long long, or NULL on failure. 
 
    object PyLong_FromUnsignedLongLong(uPY_LONG_LONG v) 
    # Return value: New reference. 
    # Return a new PyLongObject object from a C unsigned long long, or NULL on failure. 
 
    object PyLong_FromDouble(double v) 
    # Return value: New reference. 
    # Return a new PyLongObject object from the integer part of v, or NULL on failure. 
 
    object PyLong_FromString(char *str, char **pend, int base) 
    # Return value: New reference. 
    # Return a new PyLongObject based on the string value in str, 
    # which is interpreted according to the radix in base. If pend is 
    # non-NULL, *pend will point to the first character in str which 
    # follows the representation of the number. If base is 0, the 
    # radix will be determined based on the leading characters of str: 
    # if str starts with '0x' or '0X', radix 16 will be used; if str 
    # starts with '0', radix 8 will be used; otherwise radix 10 will 
    # be used. If base is not 0, it must be between 2 and 36, 
    # inclusive. Leading spaces are ignored. If there are no digits, 
    # ValueError will be raised. 
 
    object PyLong_FromUnicode(Py_UNICODE *u, Py_ssize_t length, int base) 
    # Return value: New reference. 
    # Convert a sequence of Unicode digits to a Python long integer 
    # value. The first parameter, u, points to the first character of 
    # the Unicode string, length gives the number of characters, and 
    # base is the radix for the conversion. The radix must be in the 
    # range [2, 36]; if it is out of range, ValueError will be 
    # raised. 
 
    # object PyLong_FromUnicodeObject(object u, int base)
    # Convert a sequence of Unicode digits in the string u to a Python integer
    # value. The Unicode string is first encoded to a byte string using
    # PyUnicode_EncodeDecimal() and then converted using PyLong_FromString().
    # New in version 3.3.

    object PyLong_FromVoidPtr(void *p) 
    # Return value: New reference. 
    # Create a Python integer or long integer from the pointer p. The 
    # pointer value can be retrieved from the resulting value using 
    # PyLong_AsVoidPtr().  If the integer is larger than LONG_MAX, a 
    # positive long integer is returned. 
 
    long PyLong_AsLong(object pylong) except? -1 
    # Return a C long representation of the contents of pylong. If 
    # pylong is greater than LONG_MAX, an OverflowError is raised. 
 
    # long PyLong_AsLongAndOverflow(object pylong, int *overflow) except? -1
    # Return a C long representation of the contents of pylong. If pylong is
    # greater than LONG_MAX or less than LONG_MIN, set *overflow to 1 or -1,
    # respectively, and return -1; otherwise, set *overflow to 0. If any other
    # exception occurs (for example a TypeError or MemoryError), then -1 will
    # be returned and *overflow will be 0.
    # New in version 2.7.

    # PY_LONG_LONG PyLong_AsLongLongAndOverflow(object pylong, int *overflow) except? -1
    # Return a C long long representation of the contents of pylong. If pylong
    # is greater than PY_LLONG_MAX or less than PY_LLONG_MIN, set *overflow to
    # 1 or -1, respectively, and return -1; otherwise, set *overflow to 0. If
    # any other exception occurs (for example a TypeError or MemoryError), then
    # -1 will be returned and *overflow will be 0.
    # New in version 2.7.

    Py_ssize_t PyLong_AsSsize_t(object pylong) except? -1
    # Return a C Py_ssize_t representation of the contents of pylong. If pylong
    # is greater than PY_SSIZE_T_MAX, an OverflowError is raised and -1 will be
    # returned.

    unsigned long PyLong_AsUnsignedLong(object pylong) except? -1 
    # Return a C unsigned long representation of the contents of 
    # pylong. If pylong is greater than ULONG_MAX, an OverflowError is 
    # raised. 
 
    PY_LONG_LONG PyLong_AsLongLong(object pylong) except? -1 
    # Return a C long long from a Python long integer. If pylong 
    # cannot be represented as a long long, an OverflowError will be 
    # raised. 
 
    uPY_LONG_LONG PyLong_AsUnsignedLongLong(object pylong) except? -1 
    #unsigned PY_LONG_LONG PyLong_AsUnsignedLongLong(object pylong) 
    # Return a C unsigned long long from a Python long integer. If 
    # pylong cannot be represented as an unsigned long long, an 
    # OverflowError will be raised if the value is positive, or a 
    # TypeError will be raised if the value is negative. 
 
    unsigned long PyLong_AsUnsignedLongMask(object io) except? -1 
    # Return a C unsigned long from a Python long integer, without 
    # checking for overflow. 
 
    uPY_LONG_LONG PyLong_AsUnsignedLongLongMask(object io) except? -1 
    #unsigned PY_LONG_LONG PyLong_AsUnsignedLongLongMask(object io) 
    # Return a C unsigned long long from a Python long integer, 
    # without checking for overflow. 
 
    double PyLong_AsDouble(object pylong) except? -1.0 
    # Return a C double representation of the contents of pylong. If 
    # pylong cannot be approximately represented as a double, an 
    # OverflowError exception is raised and -1.0 will be returned. 
 
    void* PyLong_AsVoidPtr(object pylong) except? NULL 
    # Convert a Python integer or long integer pylong to a C void 
    # pointer. If pylong cannot be converted, an OverflowError will be 
    # raised. This is only assured to produce a usable void pointer 
    # for values created with PyLong_FromVoidPtr(). For values outside 
    # 0..LONG_MAX, both signed and unsigned integers are accepted.