Python List Methods

Below is a table summarizing common Python list methods, including their descriptions and examples of how to use them.

Method	Description	Example
append(x)	Adds an item x to the end of the list.	my_list.append(10)
extend(iterable)	Extends the list by appending all elements from the given iterable.	my_list.extend([1, 2, 3])
insert(i, x)	Inserts an item x at a given index i.	my_list.insert(2, 'apple')
remove(x)	Removes the first occurrence of the item x from the list.	my_list.remove('apple')
pop([i])	Removes and returns the item at the given index i. If i is not provided, it removes and returns the last item.	item = my_list.pop(2)
clear()	Removes all items from the list, leaving it empty.	my_list.clear()
index(x[, start[, end]])	Returns the index of the first occurrence of the item x. The search can be limited to a subsequence by specifying the start and end indices.	idx = my_list.index('apple')
count(x)	Returns the number of times the item x appears in the list.	count = my_list.count(10)
sort(key=None, reverse=False)	Sorts the list in ascending order by default. The sorting order can be customized using the key function and reverse parameter.	my_list.sort() my_list.sort(reverse=True)
reverse()	Reverses the order of the items in the list.	my_list.reverse()
copy()	Returns a shallow copy of the list.	new_list = my_list.copy()

Here are some examples to demonstrate how these methods work:

Append Example:

my_list = [1, 2, 3]
my_list.append(4)
print(my_list)

Output: [1, 2, 3, 4]

Extend Example:

my_list = [1, 2, 3]
my_list.extend([4, 5, 6])
print(my_list)

Output: [1, 2, 3, 4, 5, 6]

Insert Example:

my_list = [1, 2, 3]
my_list.insert(1, 'apple')
print(my_list)

Output: [1, 'apple', 2, 3]

Remove Example:

my_list = ['apple', 'banana', 'cherry']
my_list.remove('banana')
print(my_list)

Output: ['apple', 'cherry']

Pop Example:

my_list = [1, 2, 3, 4]
item = my_list.pop(2)
print(item)  # Output: 3
print(my_list)  # Output: [1, 2, 4]

Clear Example:

my_list = [1, 2, 3]
my_list.clear()
print(my_list)

Output: []

Index Example:

my_list = ['apple', 'banana', 'cherry']
idx = my_list.index('banana')
print(idx)

Output: 1

Count Example:

my_list = [1, 2, 2, 3, 2]
count = my_list.count(2)
print(count)

Output: 3

Sort Example:

my_list = [3, 1, 2]
my_list.sort()
print(my_list)

Output: [1, 2, 3]

Reverse Example:

my_list = [1, 2, 3]
my_list.reverse()
print(my_list)

Output: [3, 2, 1]

Copy Example:

my_list = [1, 2, 3]
new_list = my_list.copy()
print(new_list)

Output: [1, 2, 3]