Add lerobot python package

[traversaro]

Preliminary PR for lerobot. Currently not working, but as I will soon leave for summer vacation, I wanted to share the point I reached.

Checklist

• Title of this PR is meaningful: e.g. "Adding my_nifty_package", not "updated meta.yaml".
• License file is packaged (see here for an example).
• Source is from official source.
• Package does not vendor other packages. (If a package uses the source of another package, they should be separate packages or the licenses of all packages need to be packaged).
• If static libraries are linked in, the license of the static library is packaged.
• Package does not ship static libraries. If static libraries are needed, follow CFEP-18.
• Build number is 0.
• A tarball (url) rather than a repo (e.g. git_url) is used in your recipe (see here for more details).
• GitHub users listed in the maintainer section have posted a comment confirming they are willing to be listed there.
• When in trouble, please check our knowledge base documentation before pinging a team.

[github-actions]

Hi! This is the staged-recipes linter and your PR looks excellent! 🚀

[traversaro]

Missing points:

• Missing draccus package (easy, it is pure python https://pypi.org/project/draccus/#history )
• Handle the torchcodec package that is only a dependency on Linux and macOS: probably we can make this a soabi fake package, so that we build different variants for linux/macos and Windows

[conda-forge-admin]

Hi! This is the friendly automated conda-forge-linting service.

I wanted to let you know that I linted all conda-recipes in your PR (recipes/lerobot/recipe.yaml) and found some lint.

Here's what I've got...

For recipes/lerobot/recipe.yaml:

• ❌ The homepage item is expected in the about section.
• ❌ The recipe could do with some maintainers listed in the extra/recipe-maintainers section.
• ❌ The recipe must have a build/number section.
• ❌ license_file entry is missing, but is required.
• ❌ noarch packages can't have selectors. If the selectors are necessary, please remove noarch: python.
• ❌ requirements: run: hf-transfer >= 0.1.4 should not contain a space between relational operator and the version, i.e. hf-transfer >=0.1.4

For recipes/lerobot/recipe.yaml:

• ℹ️ noarch: python recipes should usually follow the syntax in our documentation for specifying the Python version.
  • For the host section of the recipe, you should usually use the pin python ${{ python_min }}.* for the python entry.
  • For the run section of the recipe, you should usually use the pin python >=${{ python_min }} for the python entry.
  • For the tests[].python.python_version or tests[].requirements.run section of the recipe, you should usually use the pin python_version: ${{ python_min }}.* or python ${{ python_min }}.* for the python_version or python entry.
  • If the package requires a newer Python version than the currently supported minimum version on conda-forge, you can override the python_min variable by adding a Jinja2 set statement at the top of your recipe (or using an equivalent context variable for v1 recipes).

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