117 "PYTHONIOENCODING: Encoding[:errors] used for stdin/stdout/stderr.\n"
1901     /* PYTHONIOENCODING environment variable */  in config_init_stdio_encoding()
1902     const char *opt = config_get_env(config, "PYTHONIOENCODING");  in config_init_stdio_encoding()
1904         char *pythonioencoding = _PyMem_RawStrdup(opt);  in config_init_stdio_encoding()  local
1905         if (pythonioencoding == NULL) {  in config_init_stdio_encoding()
1909         char *errors = strchr(pythonioencoding, ':');  in config_init_stdio_encoding()
1918         /* Does PYTHONIOENCODING contain an encoding? */  in config_init_stdio_encoding()
1919         if (pythonioencoding[0]) {  in config_init_stdio_encoding()
1922                                               pythonioencoding,  in config_init_stdio_encoding()
1923                                               "PYTHONIOENCODING environment variable");  in config_init_stdio_encoding()
1925                     PyMem_RawFree(pythonioencoding);  in config_init_stdio_encoding()
1932                PYTHONIOENCODING=latin1 behaves as  in config_init_stdio_encoding()
1933                PYTHONIOENCODING=latin1:strict. */  in config_init_stdio_encoding()
1942                                           "PYTHONIOENCODING environment variable");  in config_init_stdio_encoding()
1944                 PyMem_RawFree(pythonioencoding);  in config_init_stdio_encoding()
1949         PyMem_RawFree(pythonioencoding);  in config_init_stdio_encoding()