Add declarations from CPython's "pylifecycle.h".

Cython/Includes/cpython/pylifecycle.pxd

+# Interfaces to configure, query, create & destroy the Python runtime
+
+from libc.stdio cimport FILE
+from .pystate cimport PyThreadState
+
+
+cdef extern from "Python.h":
+    ctypedef int wchar_t
+
+    void Py_SetProgramName(wchar_t *)
+    wchar_t *Py_GetProgramName()
+
+    void Py_SetPythonHome(wchar_t *)
+    wchar_t *Py_GetPythonHome()
+
+    # Only used by applications that embed the interpreter and need to
+    # override the standard encoding determination mechanism
+    int Py_SetStandardStreamEncoding(const char *encoding, const char *errors)
+
+    void Py_Initialize()
+    void Py_InitializeEx(int)
+    void _Py_InitializeEx_Private(int, int)
+    void Py_Finalize()
+    int Py_FinalizeEx()
+    int Py_IsInitialized()
+    PyThreadState *Py_NewInterpreter()
+    void Py_EndInterpreter(PyThreadState *)
+
+
+    # Py_PyAtExit is for the atexit module, Py_AtExit is for low-level
+    # exit functions.
+    void _Py_PyAtExit(void (*func)())
+    int Py_AtExit(void (*func)())
+
+    void Py_Exit(int)
+
+    # Restore signals that the interpreter has called SIG_IGN on to SIG_DFL.
+    void _Py_RestoreSignals()
+
+    int Py_FdIsInteractive(FILE *, const char *)
+
+    # Bootstrap __main__ (defined in Modules/main.c)
+    int Py_Main(int argc, wchar_t **argv)
+
+    # In getpath.c
+    wchar_t *Py_GetProgramFullPath()
+    wchar_t *Py_GetPrefix()
+    wchar_t *Py_GetExecPrefix()
+    wchar_t *Py_GetPath()
+    void Py_SetPath(const wchar_t *)
+    int _Py_CheckPython3()
+
+    # In their own files
+    const char *Py_GetVersion()
+    const char *Py_GetPlatform()
+    const char *Py_GetCopyright()
+    const char *Py_GetCompiler()
+    const char *Py_GetBuildInfo()
+    const char *_Py_gitidentifier()
+    const char *_Py_gitversion()
+
+    ctypedef void (*PyOS_sighandler_t)(int)
+    PyOS_sighandler_t PyOS_getsig(int)
+    PyOS_sighandler_t PyOS_setsig(int, PyOS_sighandler_t)
+
+    # Random
+    int _PyOS_URandom(void *buffer, Py_ssize_t size)
+    int _PyOS_URandomNonblock(void *buffer, Py_ssize_t size)