fix: replace bare except with except Exception in parse_dataclass

[harshadkhetpal]

Summary

Replace bare except: with except Exception: in marimo/_utils/parse_dataclass.py.

Bare except: catches all exceptions including SystemExit, KeyboardInterrupt, and GeneratorExit, which should generally not be caught. In this case the handler immediately re-raises, so narrowing to Exception preserves the intent while following Python best practices (PEP 8).

Change:

# Before
except:
    raise

# After
except Exception:
    raise

Testing

No behavior change — the except clause still catches and re-raises all standard exceptions.

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Project	Deployment	Actions	Updated (UTC)
marimo-docs	Ready	Preview, Comment	Apr 7, 2026 5:54pm

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