def main():
root = make_root()
display = make_display(root)
label = make_label(root)
buttons = make_buttons(root)
calculator = Calculator(root, label, display, buttons)
calculator.start()
from calculator_class import Calculator
calculator_object = Calculator()
a = float(input('What number would you like to convert to inches'))
inches = round(calculator_object.multiply(a, 2.54), 2)
print(f' {a} cm = {inches} inches (to 2 decimal places).')
from calculator_class import Calculator # import the class that handles the calculator functions
c = Calculator() # create a Calculator object
ans = None
operators = '** * / // - +'.split() # list of available operators for use in the calculator
evaluated = False
"""This calculator is intended to handle most expressions
available on a standard calculator, while handling user
errors at the same time, such as invalid expressions or
zero division errors. The calculator will run until the
user types "exit", and the user has the option of carrying over
their answer to perform more calculations, or clearing their
answer and starting over again. In addition, several blank
print lines were added to enhance readability and ensure that
lines are not placed too closely together."""
print('Please enter only one equation at a time. If you have a bigger equation, please consider the order of operations, then enter multiple equations.\n')
while ans != 'exit':
ans = input('Please enter the equation you want to evaluate, one character at a time. If you want to stop, type "exit": ').lower().strip()
try: # try the below, and if it fails, move to the except blocks to catch errors.
if ans == '=':
result = c.equals()
print(result)
evaluated = True
elif ans.isdecimal() or ans in operators:
c.push(ans) # push the answer onto the expression, which is separated by a space in the method definition.
else: