Python Evaluation Hacker Rank Solution – Queslers

Problem : Python Evaluation Hacker Rank Solution

The eval() expression is a very powerful built-in function of Python. It helps in evaluating an expression. The expression can be a Python statement, or a code object.
For Example :

>>> eval("9 + 5")
14
>>> x = 2
>>> eval("x + 3")
5

Here, eval() can also be used to work with Python keywords or defined functions and variables. These would normally be stored as strings.
For Example :

>>> type(eval("len"))
<type 'builtin_function_or_method'>

Without eval()

>>> type("len")
<type 'str'>

Task :

You are given an expression in a line. Read that line as a string variable, such as var, and print the result using eval(var).
NOTE: Python2 users, please import from __future__ import print_function.


Constraints :

Input string is less than 100 characters.

Sample Input :

print(2 + 3)

Sample Output :

5

Python Evaluation Hacker Rank Solution in python 2

# Enter your code here. Read input from STDIN. Print output to STDOUT
from __future__ import print_function

s=raw_input()
eval(s)

Python Evaluation Hacker Rank Solution in python 3

var = input()
eval(var)

Python Evaluation Hacker Rank Solution in pypy

# Enter your code here. Read input from STDIN. Print output to STDOUT
from __future__ import print_function

input()
# or:
# eval(raw_input())

Python Evaluation Hacker Rank Solution in pypy 3

var=input()
eval(var)
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