trier

trier

Utility wrapper class to handle exceptions.

Supported Python versions

Python >= 3.8

Installation

You can install trier from PyPI, with pip:

python -m pip install trier

Example usage

Instead of using try except block you could replace it with trier.

from trier import Try

err, val = Try(lambda: 10 / 0).catch(ZeroDivisionError)

if err:
    # handle error

# do stuff with `val`

# Another way to handle could be
if not err:
  # do stuff with `val`

Supports multiple exceptions.

from trier import Try

err, file = Try(open, file="doenot_exist.txt").catch(FileNotFoundError, OSError)

if err:
    # handle error

# do stuff with `file`

Supports async error handling as well.

import asyncio
from httpx import AsyncClient, HTTPStatusError, Response
from trier import Try

def raise_on_4xx_5xx(response):
    response.raise_for_status()

async def main():
    client = AsyncClient(event_hooks={"response": [raise_on_4xx_5xx]})

    # The endpoint responds with a 404 error
    err, response = await Try(client.get, "https://run.mocky.io/v3/201f1fe6-5a3b-49c1-9df7-312951618405").async_catch(HTTPStatusError)

    if err:
        # Handle error

    # do stuff with `response`

asyncio.run(main())

Changelog

Refer to the CHANGELOG.

License

MIT - See the LICENSE for more information.