#6 Python Tutorial for Beginners | Tuple | Set in Python
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In this lecture we will learn:
– What are Tuples in Python
– Tuples re immutable
– Methods used with tuples
– When to use tuples over lists?
– What are Sets in Python?
– Properties of Sets
#1
Tuples:-
Tuple is almost similar to a list in which we can store multiple values.
– Tuples are Immutable and we can change values in them.
– To define a tuple, () round brackets are used.
– We can fetch the values from a tuple using the index value that can be given in a square bracket.
– Tuple will give an error when you tried to change a value in it.
#2
– count method is used to count the occurrences of an element in a tuple. It counts the number of times that an element is present in a tuple.
e.g., If an element of value 5 is present two times in a tuple, then the count method returns 2.
#3
– We can use tuples when we want a list of multiple values but we do not want to change it.
– Iteration in the tuple is faster than the list.
#4
Sets:-
– Set is a collection of unique elements.
– To define the set, we use the {} curly brackets.
– Set never follows the sequence.
– When we print the set, then the sequence of values in output will be different from the sequence of input.
– Duplicate values present in a set will be printed only once in an output.
– Set uses the concept of Hash. Hash is used to improve the performance as it fetches the values as fast as possible.
– Indexing is not supported in sets as it does not follow sequencing.
– Values can not be changed in a set also because index value is not supported.
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