KnowCardPython · Dictionaries & Sets
Which set operation is available as a method but has no operator equivalent, and what does it test?
Answer locked. Get the free KnowCard app to reveal it — plus spaced-repetition review so it actually sticks.
More in Dictionaries & Sets
What does this print?
```
d = {"a": 1, "a": 2}
print(d)
```
Why does this raise an error?
```
d = {[1, 2]: "x"}
```
Can a tuple be a dict key but a list cannot? Why the difference?
What does this print?
```
d = {1: "x"}
print(d[1.0])
```
What does this print?
```
d = {"a": 1, "b": 2}
print("a" in d)
print(1 in d)
```
What does this loop print?
```
d = {"a": 1, "b": 2}
for x in d:
print(x)
```
Start learning today
Free to start — download the app or use it in your browser.