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Jul 15, 2024 · Python eval() function parse the expression argument and evaluate it as a Python expression and runs Python expression (code) within the program. Python eval() Function Syntax. Syntax: eval(expression, globals=None, locals=None)
The eval() function evaluates the specified expression, if the expression is a legal Python statement, it will be executed.
You can use the built-in Python eval() to dynamically evaluate expressions from a string-based or compiled-code-based input. If you pass in a string to eval(), then the function parses it, compiles it to bytecode, and evaluates it as a Python expression.
The eval() method returns the result evaluated from the expression. Example 1: How eval () works in Python. x = 1. print (eval( 'x + 1' )) Run Code. Output. 2. Here, the eval() function evaluates the expression x + 1 and print () is used to display this value. Example 2: Practical Example to Demonstrate Use of eval ()
The function eval () is a built-in function that takes an expression as an input and returns the result of the expression on evaluation. Let us see the syntax of the eval () function. eval(expression, globals=None, locals=None) The first expression is a must, but the next two are default arguments with the default value None.
The eval() function can return any data type that the evaluated expression represents. How to Use eval() in Python. Example 1: The eval() function parses the expression argument and evaluates it as a Python expression. eval('3 + 5 * 2') Example 2: It can also evaluate expressions with variables defined in the local scope. x = 10. y = 5.
Mar 8, 2019 · Built-in Functions ¶. The Python interpreter has a number of functions and types built into it that are always available. They are listed here in alphabetical order. abs (x) ¶. Return the absolute value of a number. The argument may be an integer or a floating point number. If the argument is a complex number, its magnitude is returned.
