Python Practice Problems Archives - Page 77 Of 95

Capitalize first and last letters of each word.

In this program, we will take a string as input and capitalize first and last letters of each word.

Steps to solve the program

Take a string as input.
Capitalize first and last letters of each word using Indexing and upper() function.
Print the output.

				
					#Input string
string = "this is my first program"

for char in string.split(" "):
    #Printing output
    print(char[0].upper() + char[1:-1] + 
          char[-1].upper(), end=" ")

Output :

				
					ThiS IS MY FirsT PrograM

remove spaces from a given string.

calculate the sum of digits of a given string.

Remove spaces from a given string

In this program, we will take a string as input and remove spaces from a given string.

Steps to solve the program

Take a string as input.
Create an empty string.
Add every character from the input string to the empty string except spaces.
Print the output.

				
					#Input string
string1 = "python at sqatools"
str1 = ""

for char in string1:
    if char != " ":
        str1 += char

#Printing output
print(str1)

Output :

				
					pythonatsqatools

second most repeated word in a given string

capitalize the first and last letters of each word of a given string.

Find the second most repeated word in a string.

In this program, we will take a string as input and find the second most repeated word in a given string.

Steps to solve the program

Take a string as input and create an empty dictionary.
Use for loop to iterate over each word of the string.
Add a word as the key and its occurrences in a string as the value in the dictionary.
Use sorted() and lambda function to sort the dictionary by values.
Print the second most repeated word in a string.

				
					#Input string
string = "ab bc ac ab bd ac nk hj ac"
dictionary = dict()

for char in string.split(" "):
    if char != " ":
        dictionary[char] = string.count(char)

counts_ = sorted(dictionary.items(), key=lambda val: val[1])
#Printing output
print(counts_[-2])

Output :

				
					('ab', 2)

find the first repeated word in a given string.

remove spaces from a given string.

Find the first repeated word in a given string.

In this program, we will take a string as input and find the first repeated word in a given string.

Steps to solve the program

Take a string as input and create an empty list.
Add each word from the string to the empty list using for loop.
If a word repeats then break the loop.
Print the output.

				
					#Input string
str1 = "ab bc ca ab bd ca"
temp = []

for word in str1.split():
    if word in temp:
        print("First repeated word: ", word)
        break
    else:
        temp.append(word)

Output :

				
					First repeated word:  ab

split a string on the last occurrence of the delimiter.

find the second most repeated word in a given string

Split a string on last occurrence of delimiter.

In this program, we will take a string as input and split a string on last occurrence of delimiter.

Steps to solve the program

Take a string as input.
Split the string on the last occurrence of delimiter using rsplit().
Print the output.

				
					#Input string
str1 = "l,e,a,r,n,I,n,g,p,y,t,h,o,n"

#Printing output
print(str1.rsplit(',', 1))

Output :

				
					['l,e,a,r,n,I,n,g,p,y,t,h,o', 'n']

count and display the vowels in a string

find the first repeated word in a given string.

Count the vowels in a string

In this program, we will take a string as input and count the vowels in a string.

Steps to solve the program

Take a string as input.
Create a list containing all the vowels and create a count variable and assign its value equal to 0.
Use for loop to iterate over each character from the string.
If that character is present in the vowels add 1 to the count variable.
Print the output.

				
					#Input string
string = "welcome to Sqatools"
vowels = ["A","E","I","O","U",
         "a","e","i","o","u"]
count = 0

for char in string:
    if char in vowels:
        count += 1

#Printing output
print(count)

Output :

swap commas and dots in a string.

split a string on the last occurrence of the delimiter.

Swap commas and dots in a string.

In this program, we will take a string as input and swap commas and dots in a string.

Steps to solve the program

Take a string as input.
Swap commas with dots in the string using replace().
Print the output.

				
					#Input string
string = "sqa,tools.python"

#Replacing , by .
string.replace(",",".")

Output :

				
					'sqa.tools.python'

convert a string into a list of words.

count and display the vowels in a string

Convert a string into a list of words.

In this program, we will take a string as input and convert a string into a list of words.

Steps to solve the program

Take a string as input.
Convert the string into a list of words using split().
Print the output.

				
					#Input string
string = "learning python is fun"
list1 = string.split(" ")

#Printing output
print(list1)

Output :

				
					['learning', 'python', 'is', 'fun']

check whether a string contains all letters of the alphabet or not.

swap commas and dots in a string.

String contains all letters alphabet or not.

In this program, we will take a string as input and string contains all letters alphabet or not

Steps to solve the program

Take a string as input.
Import string library and create a set of all alphabets using string library.
Check whether a string contains all letters of the alphabet or not.
Print True if yes else False.

				
					#Importing string
import string
alphabet = set(string.ascii_lowercase)

#Input string
string = "abcdgjksoug"

#Printing output
print(set(string.lower()) >= alphabet)

Output :

				
					False

strip spaces from a string.

convert a string into a list of words.

Strip spaces from a string.

In this program, we will take a string as input and strip spaces from a string.

Steps to solve the program

Take a string as input.
Strip the spaces from a string using strip().
Print the output.

				
					#Input string
string = "    sqaltoolspythonfun     "

#Printing output
print(string.strip())

Output :

				
					sqaltoolspythonfun

print the index of the character in a string.

check whether a string contains all letters of the alphabet or not.