python / beginner
Snippet
Membership Testing with the 'in' Operator
The 'in' operator is used to check if a value exists within a sequence (like a list, tuple, or string). It returns True if the value is found and False otherwise, providing a clean way to perform searches.
snippet.py
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members = ['user1', 'user2', 'user3']print('user2' in members)print('admin' in members)
Breakdown
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members = ['user1', 'user2', 'user3']
Create a list of registered usernames.
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print('user2' in members)
Check if 'user2' is present in the list and print the result (True).
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print('admin' in members)
Check if 'admin' is present in the list and print the result (False).