Week 5: Mouse input, dictionaries and images

Question 1

What does list.index(x) do?

Answer 1

Shows what “X” is in the list which is being indexed

Question 2

What does list.append(x) do in Python?

Answer 2

Adds “x” to the end of the list being appended

Question 3

What does list.pop(X) do in Python?

Answer 3

Removes “x” from the list being referenced. If no argument is given then it will remove the last item on the list.

Question 4

Can a list in Python be modified while it is iterating?

Answer 4

No, if it is modified while iterating then it may lead to unpredictable behaviour

Question 5

What is a Dictionary in Python?

Answer 5

Dictionaries are a way of “mapping” in Python. eg. Keys to Values {1:2} - 1 would be the key, and 2 would be the value; keys are commonly numbers or strings; values have more variety