Exceptional handling for Zero Division Error

# if value of x is given as zero the zero divison error generates and program terminates
x=int(raw_input('Enter the number of students failed:'))
y=100/x
print y


# If x is not defined itself the program not terminated instead it goes to except loop
try:
    x=int(raw_input('Enter the number of students failed:'))
    y=100/x
    print y
except ZeroDivisionError:
    x=1
    y=100/x
    print y

Exceptional handling for Name Error

# If x is not defined itself the program not terminated
try:
    y=50*x
except NameError:
    x=1
    y=50*x
    print y
   

Exceptional handling for Key Error

#Without Exceptional handling program terminates if key b not found
s={'d':2,'k':4}
if b in s.keys():
    s['b'].append[9]
else:
    s['b']= 8


#Exceptional handling for key error and program run without termination
s={'d':2,'k':4}
try:
    s['b'].append[9]
except KeyError:
    s['b']= 8

Reverse of a number using functions

def intreverse(Number):
  Reverse = 0          # Initialize the reverse value to overcome garbage value storage
  while(Number > 0):
    Reminder = Number %10
    Reverse = (Reverse *10) + Reminder
    Number = Number//10
  return (Reverse)

What is the type of each of the following expressions (within the type function)?

print type(5)         <type 'int'>

print type("abc")  <type 'str'>

print type(True)   <type 'bool'>

print type(5.5)     <type 'float'>

print type(12/27)   <type 'int'>

print type(2.0/1)   <type 'float'>

print type(12 ** 3)  <type 'int'>

print type(5 == "5")  <type 'bool'>

a = str((-4 + abs(-5) / 2 ** 3) + 321 -((64 / 16) % 4) ** 2)

print a

Ans: 317