[FEATURE] Support for common pydantic types

[lachaib]

This PR is "functional" as in "it does what was expected"

• Support pydantic common types while keeping pydantic an optional dependency
• Works in lists and tuples
• Documentation with examples and test on examples

However, don't hesitate to request more tests, docs, or improvements on the code if needed to fit with the current standards

Fixes #181

[github-actions]

📝 Docs preview for commit 7ea8313 at: https://d7891fe3.typertiangolo.pages.dev

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[lachaib]

@tiangolo in order to add a basic pydantic support, we'd need to drop python 3.6, and I'd say it's about time 😏
Would you agree with that? Do you want me to open another pull request to do so? I'd be glad to help.

Edit: seems it's already submitted here #556

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[svlandeg]

@tiangolo in order to add a basic pydantic support, we'd need to drop python 3.6, and I'd say it's about time 😏

Hi! Note that Python 3.6 support was recently dropped in 0.11.0.

[lachaib]

@tiangolo in order to add a basic pydantic support, we'd need to drop python 3.6, and I'd say it's about time 😏

Hi! Note that Python 3.6 support was recently dropped in 0.11.0.

Yep I noticed that's why I rebased my PR yesterday 😁
Now the docs can't build in CI and I don't control it 😓

[svlandeg]

Now the docs can't build in CI and I don't control it 😓

There's an issue with the documentation building on the CI, unrelated to this PR. We're looking into it!

[UPDATE] docs building CI error is fixed.

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📝 Docs preview for commit 19319c6 at: https://99282d37.typertiangolo.pages.dev

[pypae]

Looks great, I'd love to see this get merged!

Could we somehow also support custom types defined by users like pydantic?

[lachaib]

Looks great, I'd love to see this get merged!

Me too 😁

Could we somehow also support custom types defined by users like pydantic?

TBH I think this PR covers most of cases we need for now and I prefer to keep it minimalistic to get a chance for it to be merged soon.
On a personal project I managed to go a bit further and I'd really be glad to see Typer include all the features I made (some from inspiration of existing PRs) but small steps are always better.

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