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I am using the Python package aiohttp and want to access the async with expression (the with-item response) within an except block:

try:
    async with session.get(url, params={'user_id': user_id}) as response:
        return await response.json()
except (ClientConnectionError, asyncio.TimeoutError) as e:
    logger.error(f'{response.url} raised {e}')
    raise

As I understand, the context of response is closed when a ClientConnectionError or asyncio.TimeoutError is raised since it is outside of the async width block. As a consequence, calling response.url raises an UnboundLocalError.

How can I manually use __aenter__ and __aexit__ (see PEP 492) to rewrite the above snippet and keep the response context in the except block?

question from:https://stackoverflow.com/questions/65887535/how-to-use-an-async-with-expression-in-except-block-using-python

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