- adding support for darwin platform
- fetching metadata from pypi using aiohttp, 42
- for sources use `sha256` instead of `md5`. when `sha256` is not provided we download package and calculate it, 41
- python version option (`-V`) is now a required option, 39
- `python` "object" now has a `pkgs_top_level` list of all top level packages, 38
- an option `-T` added to turn `doCheck=true;` for all generated packages, 36
- detect more licenses, 29
- multiple `requirements.txt` can now be provided when calling pypi2nix, 34
- run `nix-shell` with `--pure` option