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Questions and Answers
What is the purpose of the append(element) method in a list?
What is the purpose of the append(element) method in a list?
What is the difference between remove(element) and discard(element) methods in a set?
What is the difference between remove(element) and discard(element) methods in a set?
What is the purpose of the union(other_set) method in a set?
What is the purpose of the union(other_set) method in a set?
What is the purpose of the index(element) method in a list?
What is the purpose of the index(element) method in a list?
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What is the purpose of the pop([index]) method in a list?
What is the purpose of the pop([index]) method in a list?
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What is the purpose of the copy() method in a list?
What is the purpose of the copy() method in a list?
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What is the purpose of the issubset(other_set) method in a set?
What is the purpose of the issubset(other_set) method in a set?
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What is the purpose of the extend(iterable) method in a list?
What is the purpose of the extend(iterable) method in a list?
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Study Notes
List Methods
Modifying List Elements
-
append(element): adds a new element to the end of the list -
extend(iterable): adds all elements from an iterable to the end of the list -
insert(index, element): inserts an element at a specific position in the list -
remove(element): removes the first occurrence of an element in the list -
pop([index]): removes and returns an element at a specific position in the list (default is last element) -
sort(): sorts the list in-place -
reverse(): reverses the order of the list in-place
Accessing List Elements
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index(element): returns the index of the first occurrence of an element in the list -
count(element): returns the number of occurrences of an element in the list
Copying and Joining Lists
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copy(): returns a shallow copy of the list -
+operator: concatenates two lists -
*operator: repeats a list a specified number of times
Set Methods
Creating Sets
-
set(iterable): creates a set from an iterable -
{element1, element2, ...}: creates a set from individual elements
Set Operations
-
union(other_set): returns a new set with all elements from both sets -
intersection(other_set): returns a new set with elements common to both sets -
difference(other_set): returns a new set with elements in the original set but not in the other set -
symmetric_difference(other_set): returns a new set with elements in either set but not in both -
issubset(other_set): checks if all elements of the original set are in the other set -
issuperset(other_set): checks if all elements of the other set are in the original set
Modifying Sets
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add(element): adds an element to the set -
update(iterable): adds all elements from an iterable to the set -
remove(element): removes an element from the set -
discard(element): removes an element from the set if it exists -
pop(): removes and returns an arbitrary element from the set
List Methods
Modifying List Elements
-
append(element)adds a new element to the end of the list. -
extend(iterable)adds all elements from an iterable to the end of the list. -
insert(index, element)inserts an element at a specific position in the list. -
remove(element)removes the first occurrence of an element in the list. -
pop([index])removes and returns an element at a specific position in the list (default is last element). -
sort()sorts the list in-place. -
reverse()reverses the order of the list in-place.
Accessing List Elements
-
index(element)returns the index of the first occurrence of an element in the list. -
count(element)returns the number of occurrences of an element in the list.
Copying and Joining Lists
-
copy()returns a shallow copy of the list. -
+operator concatenates two lists. -
*operator repeats a list a specified number of times.
Set Methods
Creating Sets
-
set(iterable)creates a set from an iterable. -
{element1, element2,...}creates a set from individual elements.
Set Operations
-
union(other_set)returns a new set with all elements from both sets. -
intersection(other_set)returns a new set with elements common to both sets. -
difference(other_set)returns a new set with elements in the original set but not in the other set. -
symmetric_difference(other_set)returns a new set with elements in either set but not in both. -
issubset(other_set)checks if all elements of the original set are in the other set. -
issuperset(other_set)checks if all elements of the other set are in the original set.
Modifying Sets
-
add(element)adds an element to the set. -
update(iterable)adds all elements from an iterable to the set. -
remove(element)removes an element from the set. -
discard(element)removes an element from the set if it exists. -
pop()removes and returns an arbitrary element from the set.
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Description
This quiz covers the methods used to modify Python lists, including append, extend, insert, remove, pop, and sort.
