Python Tutorial: Logical Operators
Combine conditions. and, or, not, in, is — the connectives that make decisions powerful.
One condition is rarely enough
"User is logged in AND has a premium plan." "Product is on sale OR user has a coupon." "Password does NOT match."
Logical operators connect conditions so you can express complex real-world rules simply. Ten steps.
What you'll learn in this Python logical operators tutorial
This interactive Python tutorial has 10 hands-on exercises. Estimated time: 16 minutes.
- One condition is rarely enough — In Chapter 5 you made decisions with one condition at a time. But real decisions are rarely that simple:
- or — at least one wins — `or` returns True when **at least one** side is True:
- not — flip it — `not` reverses a boolean:
- Combining and, or, not — You can mix logical operators in one condition. Use parentheses to control order — just like in math.
- in — is it in the collection? — `in` checks whether a value exists inside a sequence (list, string, tuple):
- not in — is it absent? — `not in` is the reverse of `in` — True if the value is **not** in the collection.
- is — checking for None — `is` checks identity — whether two variables point to the **exact same object in memory**. Most of the time you don't ne…
- Truthy and falsy — Python's shortcut — Python treats certain values as False without you having to compare them:
- Short-circuit — Python stops early — Python is lazy (in a good way). When it knows the answer, it stops evaluating:
- Build an access control system — Let's put everything together. No starter code.
Python Logical Operators concepts covered
- One condition is rarely enough