CSE 1010 -Sets, dictionaries, and other data types

T/F Sets are ordered like lists

False. Sets are unordered elements

What does this code do?

set1.update(set2)

Adds the values from set 2 to the end of set 1

What does this line of code do"?

set1.intersection(set2)

It creates a new set that only holds the overlapping values between the sets

What does this line of code do?

set1.union(set1,set2,set3)

Creates a set of the elements that did not overlap between the sets

Dictionaries consist of __and _

key, values

What causes a runtime error?

Referencing a key that does not exist in the dictionary

How does .items() affect a dictionary?

It allows iteration through the entire dictionary as if it was a list. There is no longer a distinction between keys and values

T/F When you print a dictionary, only the keys/values print.

False. When dictionaries print, there, parenthesis are placed around the key:value pair. The colon and quotation marks for strings are printed as well

What is teh difference between tuples and lists?

Tuples are immutable while lists are mutable

Y/N Can you pass a list through a tuple? What about a set

Yes you can. If passed through a tuple, it becomes immutable.

.append(), .extend(), .remove(), .insert() are for what data type?

Lists

.add(), .remove(), .discard(), .update is for what data type?

Sets