numbers = []
sum = 0
while True :
    try :
     num = input("Enter a number or (stop) to exit : ")
     if num != "stop" :
      sum += float(num)
      numbers.append(num)
     else :
      break
    except :
     print("\n!! Please enter a valid value !!\n") 

print("\nYou entered these numbers :")
for i in numbers :
 print(i)

average = sum / len(numbers)

print(f"\nThe sum numbers is : {sum} \nAverage numbers is : {average}%")

list = []
friends = int(input("Enter the number of your friends names: "))
for i in range(1, friends+1):
 name = input(f"Enter your friend name {i}: ")
 list += [name]
print("\nyour friends⇶" , list)

list += [name]

list = [name1 , name2]
list += [name3 , name4 , name5]
print(list)

list[index]

list = [1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10]

print( )

1
2
3
4
5
6
7
8
9
10

list = [1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10]
print( )

list = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
print("\n".join(map(str, list)))

import random

number = random.random()

print(number)

import random

number = random.randint(1, 10)

print(number)

import random

fruits = ["apple", "banana", "orange"]

fruit = random.choice(fruits)

print(fruit)

import random

numbers = [1, 2, 3, 4, 5]

random.shuffle(numbers)

print(numbers)

import random

numbers = [1, 2, 3, 4, 5, 6]

sample = random.sample(numbers , 3)

print(sample)

import random

number = random.uniform(1.0, 10.0)

print(number)

serial = []
names = []
attends = []
number = int(input("How many students : "))
for x in range(1 , number+1):
 serial.append(x)
 name = input(f"Enter Student Name {x} : ")
 names.append(name)
 
 attend = input(f"Is{name}present or absent? (T or F) : ")
 attends.append(attend)
 
for i in range(len(serial)) :
 line = f"¦ {serial[i]} ¦ {names[i]} ¦ {attends[i]} ¦"
 print("–" * len(line))
 print(line)
print("–" * len(line))

serial = []
names = []
attends = []
number = int(input("How many students : "))
for x in range(1 , number+1):
 serial.append(x)
 name = input(f"Enter Student Name {x} : ")
 names.append(name)
 
 attend = input(f"Is{name}present or absent? (T or F) : ")
 attends.append(attend)
 
file = zip(serial , names , attends)

for serial , names , attends in file :
 line = f"{serial} ¦ {names} ¦ {attends} ¦"
 print("–" * len(line))
 print(line)
print("–" * len(line))