final assignment

ASSIGNMENT 2 PYTHON (ISTE)
-SHRUTI MASAND, 181EC245

1. Create a virtual environment to install two different versions of the
same package. If possible try to implement these packages in different
programs to show that their versions are different otherwise share a
screenshot showing the same inside the terminal itself.

A1)
virtualenv shruti
pip install numpy==1.0
pip install numpy==2.0

(I HAVE DOUBT IN THIS QUESTION)



2. Create a billing system using OOPs concepts for Pizza hut. Add
options to either Dine In or Take Delivery. Add options for at least one
offer on buying two items together getting another item free. The items
on the menu should include at least 3 pizzas, 2 sides, and 2
beverages.

A2)
farmhouse=250
>>> margharita=220
>>> peperoni=300
>>> french_fries=100
>>> garlic_bread=150
>>> mojito=120
>>> coke=80
>>> dine_in=10
>>> take_away=5

def bill1(order):
...  price= sum(order)
...  print(price)
...

"""place your order as a tuple"""
'place your order as a tuple'

>>> """example of an order"""
'example of an order'
order1=(peperoni,farmhouse,french_fries,coke,mojito,dine_in)

>>> bill1(order1)
860

>>> """offer: on buying peperoni with french_fries, coke is free"""
'offer: on buying peperoni with french_fries, coke is free'

>>> if peperoni and french_fries and coke in order1:
...  print(bill(order1)-80)
>>> else:
…  print("congrats for earning a free coke!!")


3. Write a recursive functions to calculate gcd in python
A3)
def gcd(a, b):
    if (0 == a % b):
        return b
    return gcd(b, a%b)


4. Explain output of following program briefly:
def gfg(x,l=[ ] ):
for i in range(x):
l.append(i*i)
print(l)
gfg(2)
gfg(3,[3,2,1])
gfg(3)

A4)
gfg(2)
[0]
[0, 1]

 gfg(3,[3,2,1])
[3, 2, 1, 0]
[3, 2, 1, 0, 1]
[3, 2, 1, 0, 1, 4]

 gfg(3)
[0, 1, 0]
[0, 1, 0, 1]
[0, 1, 0, 1, 4]

5. Write a python script to make this pattern using for loops:
*
***
*****
*******
*********
A5) 
for i in range(0, 5):
    for j in range(0, i+1):
        print("* ",end="")
    print()