Files
pydantic/docs/examples/validation_decorator_async.py
Arseny Boykov c24d33e5f1 Generate docs exampels for Python 3.10 and above (#4339)
* Generate docs exampels for Python 3.10 and above

Code quality is not great and main intent here is to show the result.

* Fix docs build on 3.9

* Build docs on 3.10

* What's Python 3.1?

* Create temp dir if not exists

* Refactor and improve imlementetion

* Keep runtime typing in examples

* Revert unrelated formatting changes

* Add changes file

* Allow specifying requirements in examples

* Pin autoflake and pyupgrade

* Add docs/build to Makefile lint/format/mypy

* ignore_missing_imports for ansi2html and devtools

* Add .tmp-projections to .gitignore

* Remove dont-upgrade now when Pattern is supported

* Update postponed evaluation examples

Co-authored-by: Samuel Colvin <s@muelcolvin.com>
2022-08-14 17:21:53 +01:00

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Python

class Connection:
async def execute(self, sql, *args):
return 'testing@example.com'
conn = Connection()
# ignore-above
import asyncio
from pydantic import PositiveInt, ValidationError, validate_arguments
@validate_arguments
async def get_user_email(user_id: PositiveInt):
# `conn` is some fictional connection to a database
email = await conn.execute('select email from users where id=$1', user_id)
if email is None:
raise RuntimeError('user not found')
else:
return email
async def main():
email = await get_user_email(123)
print(email)
try:
await get_user_email(-4)
except ValidationError as exc:
print(exc.errors())
asyncio.run(main())
# requires: `conn.execute()` that will return `'testing@example.com'`