Py_SetPythonHome uses static storage #6913

Doc/c-api/init.rst

@@ -374,6 +374,10 @@ Initialization, Finalization, and Threads
    Set the default "home" directory, that is, the location of the standard
    Python libraries.  The libraries are searched in
    :file:`{home}/lib/python{version}` and :file:`{home}/lib/python{version}`.
+   The argument should point to a zero-terminated character string in static
+   storage whose contents will not change for the duration of the program's
+   execution.  No code in the Python interpreter will change the contents of
+   this storage.
 
 
 .. cfunction:: char* Py_GetPythonHome()