10 Interview question on python

 


# What is python ?

    1. Python is a high level interpriter programing language.

    2. Python supports OOP.

    3. Python language used in many areas for developing web applications, 

automate webapplications with selenium ,Machine Learning, Automation, IOT, 

Network Programming, Text processing and Multimedia.


# Advantages of python ?

    1. Python is easy to learn and use

    2. Python syntax is easy to use and Simple.

    3. Python supports OOP, modules and packages.

    4. It is a Interpreted language

    5. Compatible with Major Platforms

    6. Python has Extensive Support Libraries like(panda, numpy, matplotlib) and 

frameworks(django, flask, bottle and Robot Framework)

    7. Python is a open source.


# Dis Advanatges in python ?

    1. Python runs only on single core.

    2. It is not suitable for mobile applications.

    3. Speed: Python is slower than C or C++. But of course, 

Python is a high-level language, unlike C or C++ it's not closer to hardware.


# Which python version you are using ?

    1. i am using python 3.6.8 version


# Write a pattern for match ip address ?

ip = '1.200.33.25'

r = re.search(r'^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$', ip)

print(r)


# Write a pattern for match email address ?

email = 'sriram.instinfo@gmail.com'

r  = re.search('[a-zA-Z0-9.]+@[A-Za-z]+\.(com|in)',email)

print(r)


# Find Max and Min values without inbult finctions ?

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

fv = l[0]

for i in l:

    if fv < i:

       fv = i

print(' Max value is :', fv)


for i in l:

    if fv > i:

       fv = i

print(' Min value is :', fv)


# Remove duplicate values from list

l = [1,2,3,3,5,5]

NL =[]

for i in l:

    if i not in NL:

        NL.append(i)

print(NL)


# Convert two lists into one dictionary

l = [1,2,3,4]

ll = ['uma','mahesh','kumar','naidu']

d = dict(zip(l,ll))

print(d)


# Convert list into dictionary

a = ['name','anjan','age',28,'proper','tdp']

b = {}

for i in range(0,len(a),2):

    b[a[i]] = a[i+1]

print(b)


# Minssing number in list

l = [1,2,3,5,6,7]

for i in range(max(l)):

    if i not in l:

        print(i)


# How to Reverse a string 

s = 'umamahesh'

## 1 with slicing

print(s[::-1]


## 2 With for loop

l = []

for i in s:

    l.insert(0,i)

s = ''.join(l)

print(s)



# How to reverse words in string 

s = "How are you Balu"

ms = ''

for i in s.split():

    ms += ' ' + i[::-1]

print(ms)


#output----- woH era uoy ulaB


# How to reverse word characters in a string?

A = "Hi how are you "

##  Output is : iH woh era uoy 


for word in A.split():

    print (word[::-1])


# How Get Charecter count in string ?

s = 'sriram kumar'

print({i:s.count(i) for i in set(s)})


# How do you know given string is Palindrome or not ?

'''A palindrome is a word, number, phrase, or other sequence of characters which reads the same backward as forward, such as madam or racecar or the number 10801.'''

v = 'sas'

if v == v[::-1]:

    print(v, ' is a palindrome ')

else:

    print(v, ' is not a palindrome ')



# Sort a list without sort function

l = [2,4,3,55,6,7]

ll= []

for i in range(len(l)):

    m = min(l)

    ll.append(m)

    l.remove(m)

print(ll)


# get Prime number with list comprihence

print([i for i in range(0,10) if i > 1 if 0 not in[i%j for j in range(2,i)]])


# Get Prime number with for loop

for i in range(0,10):

    if i > 1:

        if all(i%j != 0 for j in range(2,i)):

            print ' prime number with for loop :', i


# Write a Fibanacci program ?

def fib(n) :

   a,b = 0,1

   for _ in range(n) :

     yield a

     a,b = b,a+b

print(list(fib(10)))


# Write a Factorial Program ?

def fact(n):

  f = 1

  for i in range(1, n +1):

   f = f * i

  return f

print fact(5)


#############Given number is prime number or not

n=6

c=0

if n>0:

for  i in range(1,n+1):

    if n%i==0:

        c=c+1

if c==2:

    print("prime")

else:

    print(" not prime")


######Python Program to Print all Prime Numbers between an Interval

  

lower = int(input("Enter lower range: "))  

upper = int(input("Enter upper range: "))  

  

for num in range(lower,upper + 1):  

   if num > 1:  

       for i in range(2,num):  

           if (num % i) == 0:  

               break  

       else:  

           print(num)  



#Python Program to Print all Prime Numbers between 0 to n

  

n = int(input("Enter n value: "))

for n in range(0, n + 1):

    if n > 1:

        for i in range(2, n):

            if (n % i) == 0:

                break

        else:

            print(n)




-----Print number in right triangl shape

n = int(input("enter n values"))

for i in range(1,n+1):

    for j in range(1,i+1):

        print(j,end='')

    print()


---output

enter n values5

1

12

123

1234

12345



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