Python Set

set it use to store multiple values in single variable, it one in 4 data types. set are unordered, unindexed and do not store duplicate values. set are created insert items(value) in curly brackets {}. cannot access item using index number like a list.

Set cannot store duplicate values.

Example

set : {'mango','guava','papaya'}

Python set (not all duplicate)

x={"apple", "banana", "banana", "guava"}
print(x)

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Output

{'apple','banana','guava'}

sets

sets store multi datatype items

set={'hallo",True,2}
print(type(set))
#length of set
print(len(set))

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Output

<class 'set'>
3

var1 = {1,2,3}
var2 = {'hi','when','why'}
var = {'hi','hallo','who','what'}

Function	Example	output
len	len(var)	4
type	type(var)	<class 'set'>
add	var.add("what's up")	{'hi','hallo','who','what','what's up'}
update	var.update(var1)	{'hi','hallo','who','what',1,2,3}
remove	var.remove('hi')	{'hallo','who','what'}
discard	var.remove('hi')	{'hallo','who','what'}
pop	var.pop('hi')	{'hallo','who','what'}
clear	var.clear()	{}
del	del var
union	var.union(var1)	{'hi','hallo','who','what',1,2,3}
intersection_update	var.intersection_update(var2)	{'hi'}
intersection	var.intersection_update(var2)	{'hi'}
symmetric_difference_update	var.symmetric_difference_update(var2)	{'hallo','who','what','when','why'}
symmetric_difference	var.symmetric_difference_update(var2)	{'hallo','who','what','when','why'}
copy	x = var.copy()	{'hi','hallo','who','what'}
isdisjoint	var.isdisjoint(var1)	True

Python arrays

• Tuple:tuple is written in Parentheses (), collection of immutable and ordered values. allow duplicate.
• List:list is written in square brackets [], collection of mutavle and ordered values. allow duplicate.
• Dict:Dict is written in curly brackets {}, collection of unordered and mutable values. not allow duplicate.
• Set:sets is written in curly brackets {}, collection of unordered , unindexed and immutable values. not allow duplicate.