128     Py_UCS4 fill_char;  member
143     printf("internal format spec: fill_char %d\n", format->fill_char);
181     format->fill_char = ' ';  in parse_internal_render_format_spec()
194         format->fill_char = READ_spec(pos);  in parse_internal_render_format_spec()
220         format->fill_char = '0';  in parse_internal_render_format_spec()
366              Py_UCS4 fill_char, Py_ssize_t n_lpadding,  in fill_padding()  argument
374         _PyUnicode_FastFill(writer->buffer, pos, n_lpadding, fill_char);  in fill_padding()
380         _PyUnicode_FastFill(writer->buffer, pos, n_rpadding, fill_char);  in fill_padding()
530     if (format->fill_char == '0' && format->align == '=')  in calc_number_widths()
582         *maxchar = Py_MAX(*maxchar, format->fill_char);  in calc_number_widths()
599             Py_UCS4 fill_char,  in fill_number()  argument
610                             writer->pos, spec->n_lpadding, fill_char);  in fill_number()
634                             writer->pos, spec->n_spadding, fill_char);  in fill_number()
684                             fill_char);  in fill_number()
810         maxchar = Py_MAX(maxchar, format->fill_char);  in format_string_internal()
821     result = fill_padding(writer, len, format->fill_char, lpad, rpad);  in format_string_internal()
999                          tmp, prefix, format->fill_char,  in format_long_internal()
1147                          NULL, 0, format->fill_char,  in format_float_internal()
1213     if (format->fill_char == '0') {  in format_complex_internal()
1313     tmp_format.fill_char = '\0';  in format_complex_internal()
1347         maxchar = Py_MAX(maxchar, format->fill_char);  in format_complex_internal()
1357                           format->fill_char, lpad, rpad);  in format_complex_internal()