python-test/calculator_final.py at main · Killingrace/python-test · GitHub

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calculator = input('Enter pls\n->')
calc_list = list(calculator)
current_number = ''
calc_list_final = [ ]
for i in calc_list:
    if i.isdigit() or i == '.':
        current_number += i
    else:
        if current_number:
            calc_list_final.append(current_number)
            current_number = ''
        calc_list_final.append(i)
if current_number:
    calc_list_final.append(current_number)

i = 0

while i < len(calc_list_final):
    if calc_list_final[i] == '-':
        calc_list_final[ i + 1 ] = str(-float(calc_list_final[i+1]))
        del calc_list_final[i]
        i -=1
    elif calc_list_final[i] == '+':
        del calc_list_final[i]
        i -=1
    else:
        i += 1

i = 0

while i < len(calc_list_final):
    if calc_list_final[i] == '*':
        calc_list_final[ i + 1 ] = str(float(calc_list_final[i-1]) * float(calc_list_final[ i + 1 ]))
        del calc_list_final[ i - 1 : i + 1 ]
        i -= 1
    elif calc_list_final[i] == '/':
        calc_list_final[ i + 1 ] = str(float(calc_list_final[i-1]) / float(calc_list_final[ i + 1 ]))
        del calc_list_final[ i - 1 : i + 1 ]
        i -= 1
    else:
        i += 1

i = 0

while i < len(calc_list_final):
    if calc_list_final[ i ] != '+' and calc_list_final[ i - 1 ] != '+' and i > 0:
        calc_list_final[ i ] = str( float( calc_list_final[ i ] ) + float( calc_list_final[ i - 1 ] ))
        del calc_list_final[ i - 1 ]
        i -= 1
    else:
        i += 1

print(*calc_list_final)