what is variables?

In programming, a variable is a named location in memory that stores a value. Variables allow you to store data and retrieve it later in your program. In Python, you can create a variable by giving it a name and assigning a value to it using the = operator.

For example, you can create a variable called x and assign it a value of 10:

makefile
x = 10

Once you have created a variable, you can use its name to retrieve its value later in your program. For example, you can print the value of x to the console using the print() function:

python
print(x) # Output: 10

In Python, variables can hold a wide range of data types, including integers, floats, booleans, strings, lists, tuples, dictionaries, and more. The data type of a variable is determined automatically based on the value you assign to it.

You can also update the value of a variable by assigning a new value to it. For example:

python
x = 10 print(x) # Output: 10 x = 20 print(x) # Output: 20

In this code, the variable x is first assigned a value of 10, and then its value is updated to 20.

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