pro_2.py

a = 10-3
b = 56
b /= 3
print(a + b)
# comparision orparator
a =  5==5
print(a)
a = True or False
print(a)
print("this is :", True or False)
print("this is :", True or True)
print("this is :" , False or False)
 
#and
b = True and False
print(b)
print("ths is :", True and False)
print("THIS IS :", True and True)
print("this is :", False and False)
#  NOT
print(not(False))



L = ["aa","bb","cc"]
# print(L.append("dd"))
# print(L.pop(0))
# print(L.sort())
print(L.reverse())
print(L)

m = ([1,2,3],
     [4,5,6],
     [7,8,9]
)
col2 = [row[1] for row in m]
print(col2)
row1 = [col2[2] for col2 in m]
print(row1)
col2 = [row[1] for row in m if row[1] % 2 == 0]
print(col2)
col2 = [row[2] for row in m if row[2] % 2 == 0]
print(col2)
col1 = [row[0] for row in m if row[0] % 2 == 0]
print(col1)

# string function
n = "adithyan"
name = n[0:8:2]
print(name)
print(name.endswith("ha"))
print(name.startswith("adi"))

name1 = "adithyan"
print(name1.endswith("yan"))
print(name1.startswith("yan"))
print(name1.capitalize())

c = " hello , world "
print("this is strip fu: "+c.strip())
print("this is split fu: "+str(c.split()))
print("this is upper fu: "+c.upper())
print("this is lower fu: "+c.lower())
print("this is join fu: "+" ".join(c))
print("this is replace fu: "+c.replace("hello","bye"))
print("this is find fu; "+str(c.find("l")))
s1 = "123"
s2 = "abc"
s3 = "abc123"
print("this is numeric: "+str(s1.isdigit()) )
print("this is alph: "+str(s2.isalpha()) )
print("this is alphnum : "+str(s3.isalnum()) )

age = 16
name = "adithyan"
print(f"hello!! ,i am {name} and i am {age} years old ")
print("hello!! ,i am {} and i am {} years old ".format(name,age))

# int functon
print("this is divmod: ",divmod(21,3) )
print("this is pow : ",pow(5,2))
print("this is abs : ",abs(-10))
print("this is in bin val: ", bin(150))
print("this is in hex val: ",hex(1400))
print("this is in oct val: ",oct(140))

# palandrome question
def is_palandrome(s):
    cleaned_str = " ".join(char.lower() for char in s if char.isalnum())
    return cleaned_str == cleaned_str[::-1]
print(is_palandrome("no lemon , melon on"))
print(is_palandrome("s8008s"))
print(is_palandrome("bool"))

# control statement
# if statement
x = 25
if x > 20:
    print("x is greater than 20 ")
    
# elif statement
x1 = 15
if x1 < 5:
    print("x is smaller than 5")
elif x1 <= 15:
    print("x is greater then 15")

# else statement
x2 = 5
if x2 < 2:
    print("x is smaller than 5")
elif x2 == 5:
    print("x is equal to 5")
elif x2 != 5:
    print("x is not equal to 5")
else:
    print("x is  grater than 5") 

# if,elif and else combining
sales = 89
if sales > 95:
    print("excelent: A+")

elif sales > 85:
    print("good: A")
elif sales > 65:
    print("hmm not bad: B+")
elif sales > 45:
    print("need to improve man!!: B")
else:
    print("very bad!!: C")

# nested if statement
y = 15
y1 = 20
if y > 10:
  if y1 > 15:
      print("it is greater than it was")
  else:
    print("it is not right answer")
else:
    print("y is smallert than it was")  

# logical operator
xa = 15
ya = 5
if xa > 4 and ya > 10:
    print("this is correct way for operator")

if xa > 20 or ya < 3:
    print("the OR statement is correct")
else:
    print("this is not correct in AND")
if not xa < 10:
    print("NOT operator is correct")