3_ weightConvertor.py

#project3:
#weightConvertor(kg to gram/pound , pound to kg/gram , gram to kg/pound)


#greetings
print("==========WELCOME TO  WEIGHT CONVERTOR===========")


#functioning of convertion 
def convert(weight,user):
     if user == "kg":
         return "In grams:" ,weight * 1000, "g. \n  In pounds :",weight * 2.2462 ,"lb."
     elif user == "g":
         return "In kg:", weight /1000, " kg. \n In pounds :" , weight * 0.002204622,"lb."

     elif user == "pounds":
         return "In kg :",weight /2.20462 ,"kg. \n In grams:" , weight /0.0022046,"g."
     else:
        return "Sorry ! Your unit is invalid."       
                  


#input from the user 
while True :
    weight = float(input("Add the weight:"))
    user = input("Is you given weight in 'kg'/'pounds'/'g'?: ").lower()
    print(convert(weight,user))
    choice = input("Enter 'yes' to stay and 'no' to exit:").lower()
    if choice == "no":
            break
    else:
         continue