BASIC CALCULATOR Program in Python

Program:

user_input = input("Enter your expression:")

changed_input = ''

for i in user_input:

    if i != ' ':

        changed_input += i

first_part = ''

second_part = ''

third_part = ''

for j in range(len(changed_input)):

    if changed_input[j].isdigit():

        pass

    else:

        break

len_check = 0

for k in changed_input:

    if k.isdigit():

        len_check += 1

operator_len = len(changed_input) - len_check

def add():

    print(first_part + third_part)

def sub():

    print(first_part - third_part)

def mul():

    print(first_part * third_part)

def div():

    print(first_part / third_part)

def pow():

    print(first_part ** third_part)

def flo():

    print(first_part // third_part)

if operator_len == 2:

    first_part = int(changed_input[:j])

    second_part = changed_input[j: j + 2]

    third_part = int(changed_input[j + 2:])

    if second_part == '**':

        pow()

    elif second_part == '//':

        flo()

    else:

        print("Use any one of these operators [+, -, *, /, **, //]")

elif operator_len == 1:

    first_part = int(changed_input[:j])

    second_part = changed_input[j: j + 1]

    third_part = int(changed_input[j + 1:])

    if second_part == '+':

        add()

    elif second_part == '-':

        sub()

    elif second_part == '*':

        mul()

    elif second_part == '/':

        div()

    else:

        print("Use any one of these operators [+, -, *, /, **, //]")

Programmer details : Arun Meyyappan PL

Software used: Visual studio CODE

Version : 1.74.3

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