✨ Quality: Import-time crash risk from direct sys.modules["flask.cli"] lookup#1272
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…]` lookup The module does `cli_flask = sys.modules["flask.cli"]` at import time. If `flask.cli` has not been imported yet, this raises `KeyError` and the backend fails to start before serving any request. This is a hard startup crash path and depends on import order, which is brittle across environments. Affected files: server.py Signed-off-by: Nguyen Huy Hoang <181364121+huyhoang171106@users.noreply.github.com>
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Pull request overview
This PR fixes a brittle import-order dependency in the Config Portal backend by removing an import-time sys.modules["flask.cli"] access that could raise KeyError and crash the server during startup.
Changes:
- Replace
sys.modules["flask.cli"]lookup with an explicitimport flask.cli as flask_cli. - Guard the banner-patching logic with
try/except ImportErrorto avoid hard startup failure if the CLI module can’t be imported.
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✨ Code Quality
Problem
The module does
cli_flask = sys.modules["flask.cli"]at import time. Ifflask.clihas not been imported yet, this raisesKeyErrorand the backend fails to start before serving any request. This is a hard startup crash path and depends on import order, which is brittle across environments.Severity:
highFile:
config_portal/backend/server.pySolution
Replace the
sys.moduleslookup with an explicit import and patch that object directly:If you want to avoid hard failure, wrap this in
try/except ImportErrorand continue without banner patching.Changes
config_portal/backend/server.py(modified)What is the purpose of this change?
How was this change implemented?
Key Design Decisions (optional - delete if not applicable)
How was this change tested?
Is there anything the reviewers should focus on/be aware of?
🤖 About this PR
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Closes #1271