How toremove duplicate words in a string with Python?

There are multiple ways to remove duplicate words from strings in a list in Python, as highlighted by the search results. Here are a few methods you could use:

Method 1: Using a loop and a set

original_list = ['hello world', 'goodbye world', 'hello universe']
new_list = []

for phrase in original_list:
    words = phrase.split()
    unique_words = set(words)
    new_phrase = ' '.join(unique_words)
    new_list.append(new_phrase)

print(new_list)

Output:

['world hello', 'world goodbye', 'universe hello']

Method 2: Using a list comprehension and a set

original_list = ['hello world', 'goodbye world', 'hello universe']
new_list = [' '.join(set(phrase.split())) for phrase in original_list]

print(new_list)

Output:

['world hello', 'world goodbye', 'universe hello']

Method 3: Using the dict.fromkeys() method

original_list = ['hello world', 'goodbye world', 'hello universe']
new_list = []

for phrase in original_list:
    words = phrase.split()
    no_duplicates = list(dict.fromkeys(words))
    new_phrase = ' '.join(no_duplicates)
    new_list.append(new_phrase)

print(new_list)

Output:

['hello world', 'goodbye world', 'hello universe']

These are just a few of the many ways to remove duplicate words from strings in a list in Python. The best method to use will depend on your specific use case and preferences.