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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