python3.md

Basic built-in collection data types in Python:

1. List, ordered and mutable. Allows duplicate members.

• #Lists allow different data types

lista = [5, True, "apple"]

print(lista)

• Some useful methods
  reverse(), len(),pop(),remove(), sort(),sorted()

#create list with repeated elements list_with_zeros = [0] * 5 print(list_with_zeros)

2. Tuple, ordered and immutable. Allows duplicate members.

3. Set, unordered and unindexed. No duplicate members.

• union(),combine elements from both sets, no duplication
• intersection(): take elements that are in both sets
• setA.difference(setB), returns a set with all the elements from the setA that are not in setB.
• setA.symmetric_difference(setB), returns a set with all the elements that are in setA and setB but not in both
• update(),
• difference_update() : Update the set by removing elements found in another set.
• Frozen set, an immutable version of normal set

4. Dictionary, unordered, mutable and indexed. No duplicate members. a collection of key-value pairs

my_dict = {"name":"Max", "age":28, "city":"New York"}

my_dict_2 = dict(name="Lisa", age=27, city="Boston")

5. Strings.

• strip(), upper(), lower(), startswitch(), find(), split(),join(), format(),

Link https://www.youtube.com/watch?v=HGOBQPFzWKo&ab_channel=freeCodeCamp.org