Decorators for better error handling
Project description
Erich
enrich local errors without repeated try except using decorators
Example
main.py
from typing import Callable
import erich
# Print a formatted message where format field names must
# be present in the function signature.
@erich.fmt("Tried starting task {name} ({desc})")
def start_task(name: str, prio: int, fn: Callable, desc: str = None):
schedule(prio, fn)
# Print that this function has been called but only include the prio
# in the output
@erich.signature("prio")
def schedule(prio: int, fn: Callable):
can_schedule(prio)
fn()
# add some nicer output to the final result
@erich.fmt("Cannot schedule task due to")
def can_schedule(prio: int):
can_schedule_internal(prio)
# here the exception is actually raised with a limited
# amount of information which will be enriched by
# parent/calling functions.
def can_schedule_internal(prio: int):
raise Exception(f"Cannot schedule something with prio {prio}. It's invalid")
start_task("test", -1, lambda: None, desc="very important")
> python main.py
..
stack trace
..
Tried starting task test (very important)
↳ during call of schedule(prio = -1)
↳ Cannot schedule task due to
↳ Cannot schedule something with prio -1. It's invalid
Release
- update version in setup.cfg, pyproject.toml and root __init__.py
- build
python -m build
- upload
python3 -m twine upload --repository pypi dist/*
Project details
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