PyCQA / PyCQA/bandit

When logging to the console, we should use stderr

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enhancement
Dominant language
Python
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Description

From Bandit Launchpad blueprints:
https://blueprints.launchpad.net/bandit/+spec/log-to-stderr

As noted on https://review.openstack.org/#/c/167522/1/bandit/bandit.py, when we're logging to the console, we should choose to log to stderr instead of stdout. This allows users to collect the logging separately from the generated output. In the case of the review, when generating logs and formatting the output as JSON, we likely still want logging information but we don't want it breaking the JSON format. In this case if we defaulted to logging to stderr (instead of stdout), the tool could still be used like so:

$ bandit -f json src/ > output.json

Contributor guide

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start in bandit/bandit.py, referenced by the issue's review link, and trace how console logging and formatted output are handled. Test the documented bandit -f json src/ > output.json usage, checking that logging is separated from generated JSON. Done means console logs no longer corrupt redirected JSON output.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
cli
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
48/100

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