Returns an IP address as a formatted string. Supported presentation types are: 's': returns the IP address as a string (default) 'b': converts to binary and returns a zero-padded string 'X' or 'x': converts to upper- or lower-case hex and returns a zero-padded string
(self, fmt)
| 614 | return self.__class__, (self._ip,) |
| 615 | |
| 616 | def __format__(self, fmt): |
| 617 | """Returns an IP address as a formatted string. |
| 618 | |
| 619 | Supported presentation types are: |
| 620 | 's': returns the IP address as a string (default) |
| 621 | 'b': converts to binary and returns a zero-padded string |
| 622 | 'X' or 'x': converts to upper- or lower-case hex and returns a zero-padded string |
| 623 | 'n': the same as 'b' for IPv4 and 'x' for IPv6 |
| 624 | |
| 625 | For binary and hex presentation types, the alternate form specifier |
| 626 | '#' and the grouping option '_' are supported. |
| 627 | """ |
| 628 | |
| 629 | # Support string formatting |
| 630 | if not fmt or fmt[-1] == 's': |
| 631 | return format(str(self), fmt) |
| 632 | |
| 633 | # From here on down, support for 'bnXx' |
| 634 | global _address_fmt_re |
| 635 | if _address_fmt_re is None: |
| 636 | import re |
| 637 | _address_fmt_re = re.compile('(#?)(_?)([xbnX])') |
| 638 | |
| 639 | m = _address_fmt_re.fullmatch(fmt) |
| 640 | if not m: |
| 641 | return super().__format__(fmt) |
| 642 | |
| 643 | alternate, grouping, fmt_base = m.groups() |
| 644 | |
| 645 | # Set some defaults |
| 646 | if fmt_base == 'n': |
| 647 | if self.version == 4: |
| 648 | fmt_base = 'b' # Binary is default for ipv4 |
| 649 | else: |
| 650 | fmt_base = 'x' # Hex is default for ipv6 |
| 651 | |
| 652 | if fmt_base == 'b': |
| 653 | padlen = self.max_prefixlen |
| 654 | else: |
| 655 | padlen = self.max_prefixlen // 4 |
| 656 | |
| 657 | if grouping: |
| 658 | padlen += padlen // 4 - 1 |
| 659 | |
| 660 | if alternate: |
| 661 | padlen += 2 # 0b or 0x |
| 662 | |
| 663 | return format(int(self), f'{alternate}0{padlen}{grouping}{fmt_base}') |
| 664 | |
| 665 | |
| 666 | @functools.total_ordering |