Simple python REPL command line application with objects, list comprehension, zip, f-strings, and exceptions

repl_cmdline_with_exceptions.py

class ConvertFunctions():
    def f2c(self):
        strtemps = input("Please enter your fahrenheit temperature(s): ")
        ftemps = [float(ftemp) for ftemp in strtemps.split()]
        ctemps = [(ftemp-32) * 5/9 for ftemp in ftemps]
        for (ftemp, ctemp) in zip(ftemps, ctemps):
            print(f"F:{ftemp:.2f} = C:{ctemp:.2f}")

    def m2cm(self):
        strm = input("Please enter the meters: ")
        lmeters = [int(meter) for meter in strm.split()]
        cms = [meters*100 for meters in lmeters]
        for (m, cm) in zip(lmeters, cms):
            print(f"{m}m = {cm}cm")

    def quit(self):
        raise SystemExit

def main():
    convert = ConvertFunctions()
    menu_map = {
        "1" : convert.f2c,
        "2" : convert.m2cm,
        "q" : convert.quit,
    }

    try:
        while True:
            op = input("Please select the conversion you wish to perform\n"
                    "1: Fahrenheit to Celsius\n"
                    "2: Meters to centimetres\n"
                    "q: Exit\n")
            try:
                func = menu_map[op]
            except KeyError:
                print(f"{op} is not a valid option")
            else:
                func()
    finally:
        return
        
if __name__ == "__main__":
    main()