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try-except-continue (S112)

Added in v0.0.245 · Related issues · View source

Derived from the flake8-bandit linter.

What it does

Checks for uses of the try-except-continue pattern.

Why is this bad?

The try-except-continue pattern suppresses all exceptions. Suppressing exceptions may hide errors that could otherwise reveal unexpected behavior, security vulnerabilities, or malicious activity. Instead, consider logging the exception.

Example

import logging

while predicate:
    try:
        ...
    except Exception:
        continue

Use instead:

import logging

while predicate:
    try:
        ...
    except Exception as exc:
        logging.exception("Error occurred")

Options

References