Python eval() function - Tutorial And Example

Python eval() function The eval() function in Python is used to evaluate the given expression. If the specified expression is a legal Python statement, it will be executed. Syntax


eval(expression, globals=None, locals=None)

eval(expression, globals=None, locals=None)

Parameter

expression: This parameter represents a String, that will be evaluated as Python code globals: It is an optional parameter that represents a dictionary containing global parameters locals: It is also an optional parameter that represents a dictionary containing local parameters

Return

This function returns the result of the evaluated expression Example 1


# Python Program explaining
# eval() function
x = 'print(565)'
eval(x)

# Python Program explaining

# eval() function

x = 'print(565)'

eval(x)

Output

565

565

Example 2


# Python Program explaining
# eval() function
x = 11
print(eval('x==11'))
print(eval('x+2'))

# Python Program explaining

# eval() function

x = 11

print(eval('x==11'))

print(eval('x+2'))

Output


True
13

True