| 282 | |
| 283 | |
| 284 | class Version(_BaseVersion): |
| 285 | |
| 286 | _regex = re.compile( |
| 287 | r"^\s*" + VERSION_PATTERN + r"\s*$", |
| 288 | re.VERBOSE | re.IGNORECASE, |
| 289 | ) |
| 290 | |
| 291 | def __init__(self, version): |
| 292 | # Validate the version and parse it into pieces |
| 293 | match = self._regex.search(version) |
| 294 | if not match: |
| 295 | raise InvalidVersion(f"Invalid version: '{version}'") |
| 296 | |
| 297 | # Store the parsed out pieces of the version |
| 298 | self._version = _Version( |
| 299 | epoch=int(match.group("epoch")) if match.group("epoch") else 0, |
| 300 | release=tuple(int(i) for i in match.group("release").split(".")), |
| 301 | pre=_parse_letter_version( |
| 302 | match.group("pre_l"), |
| 303 | match.group("pre_n"), |
| 304 | ), |
| 305 | post=_parse_letter_version( |
| 306 | match.group("post_l"), |
| 307 | match.group("post_n1") or match.group("post_n2"), |
| 308 | ), |
| 309 | dev=_parse_letter_version( |
| 310 | match.group("dev_l"), |
| 311 | match.group("dev_n"), |
| 312 | ), |
| 313 | local=_parse_local_version(match.group("local")), |
| 314 | ) |
| 315 | |
| 316 | # Generate a key which will be used for sorting |
| 317 | self._key = _cmpkey( |
| 318 | self._version.epoch, |
| 319 | self._version.release, |
| 320 | self._version.pre, |
| 321 | self._version.post, |
| 322 | self._version.dev, |
| 323 | self._version.local, |
| 324 | ) |
| 325 | |
| 326 | def __repr__(self): |
| 327 | return f"<Version({str(self)!r})>" |
| 328 | |
| 329 | def __str__(self): |
| 330 | parts = [] |
| 331 | |
| 332 | # Epoch |
| 333 | if self._version.epoch != 0: |
| 334 | parts.append(f"{self._version.epoch}!") |
| 335 | |
| 336 | # Release segment |
| 337 | parts.append(".".join(str(x) for x in self._version.release)) |
| 338 | |
| 339 | # Pre-release |
| 340 | if self._version.pre is not None: |
| 341 | parts.append("".join(str(x) for x in self._version.pre)) |