Reverse words in a given String in Python

We are given a string, and our goal is to reverse all the words which are present in the string. We can use the split() method and reversed() function to achieve this. Let's see some sample test cases.

Input:
string = "I am a python programmer"
Output:
programmer python a am I

Input:
string = "tutorialspoint is a educational website"
Output:
website educational a is tutorialspoint

Python provides multiple approaches to reverse words in a string. Let's explore the most common methods.

Method 1: Using split() and reversed()

This approach splits the string into words and reverses the order using reversed() ?

# initializing the string
string = "I am a python programmer"

# splitting the string on space
words = string.split()

# reversing the words using reversed() function
words = list(reversed(words))

# joining the words and printing
result = " ".join(words)
print(result)

programmer python a am I

Method 2: Using Slicing

We can use Python's slicing feature to reverse the list of words ?

# initializing the string
string = "tutorialspoint is a educational website"

# splitting and reversing using slicing
words = string.split()[::-1]

# joining the words
result = " ".join(words)
print(result)

website educational a is tutorialspoint

Method 3: One-line Solution

We can combine all operations in a single line for a more concise solution ?

# one-line solution
string = "Python makes programming easy"
result = " ".join(string.split()[::-1])
print(result)

easy programming makes Python

Algorithm

1. Initialize the string.
2. Split the string on space and store the resultant list in a variable called words.
3. Reverse the list words using reversed() function or slicing.
4. Join the words using the join() function and print the result.

Comparison

Conclusion

Use split()[::-1] for the most concise approach, or reversed(split()) for better readability. Both methods effectively reverse the order of words in a string by splitting on spaces and rejoining.