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Easily eats exceptions using decorators

Project description

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Python library for easily “eating” exceptions in functions. Eating can mean either returning a default value or calling another function.

Introduction

This library is basically just a function, namely hungry.eat. Initially, I wrote it for a document parser in which there was a lot of exception handling logic for stuff I didn’t really care particularly much about.

Example usage

Eat all exceptions and return None if one was raised:

@hungry.eat()
def foo():
    ...

Eat ValueError exceptions and return 0 if one was raised:

@hungry.eat(ValueError, error_value=0)
def foo():
    ...

Eat IndexError and ValueError and fall back to function bar if one of them is raised:

@hungry.eat(IndexError, ValueError, error_handler=bar)
def foo():
    ...

In the example above, bar will be passed the exception as the first argument, followed by all the other arguments and keyword arguments in the decorated function. This means that bar would have e.g. the following signature:

def bar(ex, *args, **kwargs):
    ...

Notes

This library will not catch exceptions and continue executing the following code. Whenever it eats an exception, it immediately returns error_value or calls error_handler.

TODO

Complete the test suite.

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