I've started with learning Python and now I am stuck with the WHILE loop, so if you could give me some advice, I would appreciate it.
So, this is my code and what I need is to stop the whole code if I enter the negative number and to print ("Wrong entry"), but my code, on entering the negative number, still passes and prints me also ("Avg price:"). I would like not to print ("Avg price is: ") when I enter e.g. (2,3,6, -12) - only to print ("Wrong entry"). I now that my last print is within WHILE loop, but I am trying to find the solutions :) Probably, there is easier solution for this, but as I said I am the newbie and still learning Thank you in advance.
price= int(input("Enter the price: "))
price_list=[]
while price!= 0:
price_list.append(price)
if price< 0:
print("Wrong entry")
break
price=int(input())
price_sum= sum(price_list)
print(f"Avg price is: {price_sum / len(price_list)}")
Using a while/else loop produces your desired behaviour.
Code
price= int(input("Enter the price: "))
price_list=[]
while price!= 0:
price_list.append(price)
if price< 0:
print("Wrong entry")
break
price=int(input())
price_sum= sum(price_list)
else:
print(f"Avg price is: {price_sum / len(price_list)}")