🐍 Python Basics 2/6: Lists, Dictionaries, Sets and Tuples

0) Lists

• are declared using brackets [ ];

• can store different data types;

• can have their values changed;

• can store duplicated values;

• store just values.

#
# ---- Lists ----
#
my_list = ["hello world", 42, 7.0, True, False]

print(f"The whole list: {my_list}")
print(f"The third element: {my_list[2]}")

1) Dictionaries

• are declared using curly brackets { };

• can store different data types;

• can have their values changed;

• can store duplicated values;

• store keys-values pairs.

#
# ---- Dictionaries ----
#
my_dict = { "anime": "JoJo's Bizarre Adventure", "fav_character": "Joseph Joestar", "rate": 10 }

print(f"The whole dictionary: {my_dict}")
print(f"Anime: {my_dict['anime']}")

2) Sets

• are declared using the built-in function set( );

• can store different data types;

• can have their values changed;

• cannot store duplicated values;

• store just values.

#
# ---- Sets ----
#
my_set = set(["a", 4, 5.0, 4.0, 4])

print(f"The whole set: {my_set}")

# it's not possible to use indexes to access sets elements. To do it, you have
# to iterate the set until you find the desired element

3) Tuples

• are declared using parenthesis ( );

• can store different data types;

• cannot have their values changed;

• can store duplicated values;

• store just values.

#
# ---- Tuples ----
#
my_tuple = ("b", True, 5, 5.0)

print(f"The whole tuple: {my_tuple}")
print(f"The second element: {my_tuple[1]}")