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17. Dynamic Code Execution

Python allows executing code dynamically with exec and eval.

Example with eval​

expr = "2 + 3 * 4"
print(eval(expr))  # 14

Example with exec​

code = "x = 10\ny = 20\nprint(x + y)"
exec(code)

Caution​

Dynamic execution is powerful but can be unsafe with untrusted input.

Wrap-Up​

Use exec and eval carefully, mainly in controlled environments.