Metadata

ID: python-best-practices/no-base-exception

Language: Python

Severity: Notice

Category: Best Practices

Description

Do not raise Exception and BaseException. These are too generic. Having generic exceptions makes it difficult to differentiate errors in a program. Use a specific exception, for example, ValueError, or create your own instead of using generic ones.

Learn More

• Stop using raise Exception

Non-Compliant Code Examples

if foo:
    raise Exception("bla")
elif bar:
    raise Exception
else:
    raise Exception

def use_base_exception():
    raise Exception
    raise Exception("awesome")

for v in list:
    raise BaseException

Compliant Code Examples

if foo:
    print("bar")
else:
    raise ValueError

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