Is Python's `eval()` Function Safe for User Input, and How Does it Work?

Understanding Python's Eval Function

Python's eval() function allows you to dynamically interpret and execute Python code within your program. It's typically used to process user input or execute code generated on the fly.

How Eval Modifies Input

When called with an input string, eval evaluates that string as Python code and returns the result. For example:

input_string = input('Enter a mathematical expression: ')
result = eval(input_string)
print(result)

In this example, the eval function converts the user's input into a Python expression and calculates its value.

Important Note on Security Risks

Using eval carries significant security risks. If the input code contains malicious or unexpected content, it can potentially execute arbitrary operations on your system. Therefore, it's crucial to sanitize and validate user input before using eval.

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