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↑ Python
Python - Variables
It's recommended to name your variables using 🔒 snake_case
to assign a variable you can use the = operator:
x = 10
y = "Hello"
Variables are not typed and their type can be changed afterward
x = 10 # x is of type int
x = "Hello" # x is now of type str
Naming
[!WARNING] Variables are case-sensitive
a = 4 A = "Hello" # A will not override a
- A variable name must start with a letter or the underscore character
- A variable name cannot start with a number
- A variable name can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ )
- Variable names are case-sensitive (age, Age and AGE are three different variables)
- A variable name cannot be any of the Python Reserved Keywords
Multiple values
# Many Values to Multiple Variables
x, y, z = "Hello", "World", "!"
# One Value to Multiple Variables
x = y = z = "Hello"
# Unpack an array
my_array = [1, 2, 3]
x, y, z = my_array
# If there is more values than variables you can use an asterix
my_array = [1, 2, 3, 4, 5]
x, y, z, *w = my_array
print(x, y, z, w) # Displays: 1 2 3 [4, 5]
Types
you can use type(<var_name>) to get the type of a variable