Instruction
Good! Let's move on to variables. Variables in programming languages are named places in computer memory where we can store data and retrieve it later. They are a bit like cells in Excel.
In Python, you provide your own names for variables, but they must start with either a letter or an underscore (_). In other words, a variable cannot start with punctuation or digits.
current_age = 25
This line of code:
- Creates a new variable named
current_age. - Assigns the value of 25 to
current_age.
The equals sign (=) means 'assign the value of' in Python. Next, you can use print() to show the value of current_age:
print(current_age)
In Python variable names are case sensitive. This means that current_age and CURRENT_AGE are two different variables! Remember that each command in Python should start from a new line.
Exercise
Create a variable named temperature, assign a value of 15 to it, and print the variable value.
Stuck? Here's a hint!
You will need two lines of code. First, create the variable and assign the value. Second, print the result.
