24    * We attempt to locate the "Python Home" - if the PYTHONHOME env var
468     char *pythonhome = Py_GetPythonHome();  in calculate_path()  local
483     if (pythonhome == NULL || *pythonhome == '\0') {  in calculate_path()
485             pythonhome = prefix;  in calculate_path()
487             pythonhome = NULL;  in calculate_path()
490         strncpy(prefix, pythonhome, MAXPATHLEN);  in calculate_path()
513     skiphome = pythonhome==NULL ? 0 : 1;  in calculate_path()
520     skipdefault = envpath!=NULL || pythonhome!=NULL || \  in calculate_path()
529            of each component replaced with pythonhome, if set;  in calculate_path()
533        - If PYTHONHOME is set (in any way) item (3) is ignored.  in calculate_path()
538     if (pythonhome != NULL) {  in calculate_path()
545         bufsz *= strlen(pythonhome);  in calculate_path()
605     if (pythonhome == NULL) {  in calculate_path()
612     if (pythonhome == NULL) {  in calculate_path()
628                 strcpy(buf, pythonhome);  in calculate_path()