python eval
时间: 2023-10-23 21:45:40 浏览: 41
The eval() function in Python is used to evaluate and execute a string as a Python expression. This allows us to dynamically execute code that is generated or input by the user at runtime.
The syntax for using eval() function is as follows:
eval(expression, globals=None, locals=None)
Here, the expression is the string to be evaluated as a Python expression. Globals and locals are optional dictionary arguments that can be used to specify the global and local namespace for the expression.
Important Note: The use of eval() function can pose security risks if it is used with untrusted user input. It is recommended to use alternative methods such as ast.literal_eval() for safely evaluating expressions.
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