Set Click standalone_mode=False by default#4537
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Qalthos
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Aug 20, 2025
Disable Click's standalone mode to prevent automatic sys.exit() calls, improving programmatic usage and testing integration. Changes: - Set standalone_mode=False in main entry point (__main__.py) - Remove redundant standalone_mode=False calls from tests This allows SystemExit exceptions to be caught properly when molecule is called programmatically, which is required for testing frameworks and embedding scenarios.
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Problem
Click's default standalone mode causes automatic
sys.exit()calls when commands complete, preventing proper exception handling in programmatic usage and testing scenarios.Solution
Set
standalone_mode=Falseas the default behavior in the main entry point to allowSystemExitexceptions to be caught and handled programmatically.Changes
standalone_mode=Falsein__main__.pyentry pointstandalone_mode=Falsecalls from test filesBenefits