Python | Variables

Python | Variables

A variable is a named location in memory where a value can be stored. Variables are used to store data values and can be used to refer to those values throughout your program.

As python is Dynamically typed programming language, So We don’t need to mention the data type of the variables during its creation.

Here is an example of how to create and use a variable in Python:

# Assign a value to a variable
x = 5

# Use the variable in a calculation
y = x + 2

# Print the value of the variable
print(x) # Output: 5
print(y) # Output: 7

In this example, a variable x is created and assigned the value of 5. The variable x is then used in a calculation to create a new variable y, which is equal to x plus 2. The values of both x and y are then printed to the console.

You can also re-assign the value of a variable at any time.

x = 10
print(x) # Output: 10

In python, variable names can contain letters, numbers, and underscores, but must start with a letter or underscore. Also, there are some reserved words in python which cannot be used as variable names.

It is important to use meaningful and descriptive variable names so that it is easy to understand the purpose of the variable in the code.

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