Membership operators
in and not in are the membership operators in Python. They are used to test whether a value or variable is found in a sequence (string, list, tuple, set and dictionary).
In a dictionary we can only test for presence of key, not the value.
| Operator |
Meaning |
Example |
| in |
True if value/variable is found in the sequence |
5 in x |
| not in |
True if value/variable is not found in the sequence |
5 not in x |
