save this as "pypi" somewhere in your path to be able to query pypi versions from the terminal

pypi.py

#!/usr/bin/env -S uv run --script
# /// script
# requires-python = ">=3.11"
# dependencies = [
#     "httpx",
#     "pydantic",
#     "pygments",
# ]
# ///
import argparse
from datetime import datetime, timezone

import httpx
from pydantic import AliasPath, BaseModel, Field
from pydantic.fields import computed_field
from pygments import highlight  # type: ignore[reportUnknownVariableType]
from pygments.formatters import TerminalFormatter
from pygments.lexers.json5 import Json5Lexer  # type: ignore[reportUnknownVariableType]


class PyPIReleaseFile(BaseModel):
    upload_time_iso_8601: datetime


class PyPIResponse(BaseModel):
    name: str = Field(validation_alias=AliasPath('info', 'name'))
    version: str = Field(validation_alias=AliasPath('info', 'version'))
    requires_python: str | None = Field(None, validation_alias=AliasPath('info', 'requires_python'))
    license_expression: str | None = Field(None, validation_alias=AliasPath('info', 'license_expression'))
    project_urls: dict[str, str] | None = Field(None, validation_alias=AliasPath('info', 'project_urls'))
    releases: dict[str, list[PyPIReleaseFile]]

    @computed_field
    @property
    def last_release(self) -> str | None:
        if release := self.releases.get(self.version):
            try:
                last_release = release[0].upload_time_iso_8601
            except IndexError:
                return None
            else:
                ago = datetime.now(tz=timezone.utc) - last_release
                return f'{last_release:%Y-%m-%d} ({ago.days} days ago)'
        return None

    @computed_field
    @property
    def release_count(self) -> int:
        return len(self.releases)


def main():
    parser = argparse.ArgumentParser(description='Fetch PyPI package information')
    parser.add_argument('package_name', help='Name of the package to fetch')
    args = parser.parse_args()

    url = f'https://pypi.org/pypi/{args.package_name}/json'
    response = httpx.get(url)
    response.raise_for_status()

    package_info = PyPIResponse.model_validate_json(response.content)
    json = package_info.model_dump_json(indent=2, exclude_none=True, exclude={'releases'})
    print(highlight(json, Json5Lexer(), TerminalFormatter()))  # type: ignore[reportUnknownVariableType]


if __name__ == '__main__':
    main()