Repository: numpy/numpy
File: numpy/_utils/_pep440.py (Python)

Code before:
                match.group("pre_l"),
                match.group("pre_n"),
            ),
            post=_parse_letter_version(
                match.group("post_l"),
                match.group("post_n1") or match.group("post_n2"),
            ),
            dev=_parse_letter_version(
                match.group("dev_l"),
                match.group("dev_n"),
            ),
            local=_parse_local_version(match.group("local")),
        )

        # Generate a key which will be used for sorting
        self._key = _cmpkey(
            self._version.epoch,
            self._version.release,
            self._version.pre,
            self._version.post,
            self._version.dev,
            self._version.local,
        )

    def __repr__(self):
        return f"<Version({repr(str(self))})>"

    def __str__(self):
        parts = []

        # Epoch
        if self._version.epoch != 0:
            parts.append(f"{self._version.epoch}!")

        # Release segment
        parts.append(".".join(str(x) for x in self._version.release))

        # Pre-release
        if self._version.pre is not None:
            parts.append("".join(str(x) for x in self._version.pre))

        # Post-release
        if self._version.post is not None:
            parts.append(f".post{self._version.post[1]}")

        # Development release
        if self._version.dev is not None:
            parts.append(f".dev{self._version.dev[1]}")

        # Local version segment
        if self._version.local is not None:

Review comment (suggestion):
```suggestion
        return f"<Version({str(self)!r})>"
```

Code after:
                match.group("pre_l"),
                match.group("pre_n"),
            ),
            post=_parse_letter_version(
                match.group("post_l"),
                match.group("post_n1") or match.group("post_n2"),
            ),
            dev=_parse_letter_version(
                match.group("dev_l"),
                match.group("dev_n"),
            ),
            local=_parse_local_version(match.group("local")),
        )

        # Generate a key which will be used for sorting
        self._key = _cmpkey(
            self._version.epoch,
            self._version.release,
            self._version.pre,
            self._version.post,
            self._version.dev,
            self._version.local,
        )

    def __repr__(self):
        return f"<Version({str(self)!r})>"

    def __str__(self):
        parts = []

        # Epoch
        if self._version.epoch != 0:
            parts.append(f"{self._version.epoch}!")

        # Release segment
        parts.append(".".join(str(x) for x in self._version.release))

        # Pre-release
        if self._version.pre is not None:
            parts.append("".join(str(x) for x in self._version.pre))

        # Post-release
        if self._version.post is not None:
            parts.append(f".post{self._version.post[1]}")

        # Development release
        if self._version.dev is not None:
            parts.append(f".dev{self._version.dev[1]}")

        # Local version segment
        if self._version.local is not None: