Standard Library

dict

clear()

Remove All Items

setdefault()

Set Default Key Value

copy()

Duplicate Dictionary

values()

Retrieve Dictionary Values

pop()

Remove Key-Value Pair

popitem()

Remove Last Item Pair

fromkeys()

Create Dictionary From Keys

get()

Retrieve Element Value

items()

Retrieve Key-Value Pairs

update()

Update Dictionary

keys()

Retrieve Dictionary Keys

list

sort()

Sort Elements

pop()

Remove Last Item

append()

Add Element to List

copy()

Duplicate List

reverse()

Reverse List Order

index()

Locate Element Index

clear()

Remove All Elements

count()

Count Element Occurrences

extend()

Append Elements

insert()

Insert Element

remove()

Remove Element

tuple

index()

Locate Element Index

count()

Count Element Frequency

str

strip()

Remove Leading/Trailing Characters

index()

Find Substring Index

isalpha()

Check Alphabetic Characters

isalnum()

Check Alphanumeric Characters

swapcase()

Swap Case of String

upper()

Convert to Uppercase

partition()

Split String Into Tuple

isnumeric()

Check Numeric Characters

startswith()

Check Prefix Presence

istitle()

Check Title Casing

format()

String Formatting

expandtabs()

Set Tab Size

split()

Split String

islower()

Check for Lowercase

translate()

Replace Characters

rfind()

Find Substring Reverse

title()

Capitalize Words

rpartition()

Split String From End

join()

Concatenate Iterable

encode()

Encode String

center()

Center Align String

maketrans()

Create Translation Table

find()

Locate Substring

count()

Count Substring Occurrences

capitalize()

Capitalize First Letter

isdecimal()

Check Decimal Characters

isdigit()

Check Digits Only

lstrip()

Remove Leading Spaces

isupper()

Check Uppercase Letters

ljust()

Left-Justify String

lower()

Convert to Lowercase

isspace()

Check for Whitespace

splitlines()

Split Lines

rsplit()

Split String From Right

isprintable()

Check Printable Characters

rstrip()

Remove Trailing Characters

casefold()

Case Insensitive Comparison

replace()

Replace Substring

rindex()

Find Substring Reverse

rjust()

Right-Justify String

zfill()

Pad String with Zeros

isidentifier()

Check Identifier Validity

endswith()

Check Suffix Presence

set

symmetric_difference()

Find Symmetric Difference

copy()

Duplicate Set

remove()

Remove Element

discard()

Remove Element

pop()

Remove Arbitrary Element

difference()

Find Set Differences

issubset()

Check Subset Status

clear()

Remove All Elements

symmetric_difference_update()

Update With Symmetric Difference

union()

Combine Sets

difference_update()

Remove Elements

intersection()

Find Common Elements

add()

Add Element

issuperset()

Check Superset

isdisjoint()

Check Disjoint Sets

update()

Merge Sets

intersection_update()

Update Set Intersection