[Tut] Python List Methods Cheat Sheet [Instant PDF Download]

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Python List Methods Cheat Sheet [Instant PDF Download]

Here’s your free PDF cheat sheet showing you all Python list methods on one simple page. Click the image to download the high-resolution PDF file, print it, and post it to your office wall:



Instant PDF Download [100% FREE]

I’ll lead you through all Python list methods in this short video tutorial:



If you want to study the methods yourself, have a look at the following table from my blog article:

Method |
Description

Code:

lst.append(x)

|
Appends element

Code:

x

to the list

Code:

lst

.

Code:

lst.clear()

|
Removes all elements from the list

Code:

lst

–which becomes empty.

Code:

lst.copy()

|
Returns a copy of the list

Code:

lst

. Copies only the list, not the elements in the list (shallow copy).

Code:

lst.count(x)

|
Counts the number of occurrences of element

Code:

x

in the list

Code:

lst

.

Code:

lst.extend(iter)

|
Adds all elements of an iterable

Code:

iter

(e.g. another list) to the list

Code:

lst

.

Code:

lst.index(x)

|
Returns the position (index) of the first occurrence of value

Code:

x

in the list

Code:

lst

.

Code:

lst.insert(i, x)

|
Inserts element

Code:

x

at position (index)

Code:

i

in the list

Code:

lst

.

Code:

lst.pop()

|
Removes and returns the final element of the list

Code:

lst

.

Code:

lst.remove(x)

|
Removes and returns the first occurrence of element

Code:

x

in the list

Code:

lst

.

Code:

lst.reverse()

|
Reverses the order of elements in the list

Code:

lst

.

Code:

lst.sort()

|
Sorts the elements in the list

Code:

lst

in ascending order.

Go ahead and try the Python list methods yourself:

https://repl.it/repls/UnevenHoneydewOctagon?lite=true

Puzzle: Can you figure out all outputs of this interactive Python script?

If you’ve studied the table carefully, you’ll know the most important list methods in Python. Let’s have a look at some examples of above methods:

Code:

>>> l = [] >>> l.append(2) >>> l [2] >>> l.clear() >>> l [] >>> l.append(2) >>> l [2] >>> l.copy() [2] >>> l.count(2) 1 >>> l.extend([2,3,4]) >>> l [2, 2, 3, 4] >>> l.index(3) 2 >>> l.insert(2, 99) >>> l [2, 2, 99, 3, 4] >>> l.pop() 4 >>> l.remove(2) >>> l [2, 99, 3] >>> l.reverse() >>> l [3, 99, 2] >>> l.sort() >>> l [2, 3, 99]

Where to Go From Here?

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