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-rw-r--r--Cython/Includes/cpython/pyport.pxd8
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diff --git a/Cython/Includes/cpython/pyport.pxd b/Cython/Includes/cpython/pyport.pxd
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+cdef extern from "Python.h":
+ ctypedef int int32_t
+ ctypedef int int64_t
+ ctypedef unsigned int uint32_t
+ ctypedef unsigned int uint64_t
+
+ const Py_ssize_t PY_SSIZE_T_MIN
+ const Py_ssize_t PY_SSIZE_T_MAX