How do you find duplicate characters in a given string in Python

Python
x
12
def find_duplicate_characters(string):
duplicate_characters = []
for char in string:
if string.count(char) > 1:
if char not in duplicate_characters:
duplicate_characters.append(char)
return duplicate_characters
if __name__ == '__main__':
print(find_duplicate_characters('thequickbrownfoxjumpsoverthelazydog'))
🤖 Code Explanation
The code finds duplicate characters in a string.

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