In Python, eval()is a built-in function that executes a code of type string and returns the result of the last expression. Its basic syntax is as follows:
eval(expression, globals=None, locals=None)
where expressionis the Python expression (or instruction) to execute. globalsand localsare optional parameters for setting the global and local namespaces, which are dictionary-like data structures.
When eval()the function executes, it expressionparses and executes the string as Python code. If the code importcontains execoperations such as or that may cause security problems, SyntaxErrora or ValueErrorexception will be thrown.
Since eval()the function is capable of executing any valid Python code, it should be used with caution. In particular, code that accepts user input must be handled carefully to avoid security holes or unexpected behavior.