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eval & exec (Use with Caution)
Last Updated: May 22, 2026
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8 min read
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What eval Does
What exec Does
Caching with compile
Why Untrusted Input Is Dangerous
The Sandboxing Trap
The Right Tool: ast.literal_eval
Comparison Table
Cleaner Alternatives
When eval and exec Are Actually Fine
A Safer Discount-Rule Example
The Honest Opinion
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