Data Types in Python

Now that you know how to use Jupyter notebooks and have learnt how to write the basic “hello world!” program in Python, it’s time to understand how to declare a variable in Python. We will also learn about the different data types available in Python.

The following video will offer you an introduction to the basic syntax of declaring a variable in Python.

You have learnt that variables are nothing but a memory location to store values assigned to them. Some of the properties of these variables are: 

1. There is no need to declare the data type of the variable as done in other programming languages, such as C, C++ and JAVA

int c = 5

string name = 'Rahul'

2. The variable name (or identifier) cannot start with a number, i.e., declaring something like 2name = 7 throws an error.

3. Python is case sensitive or in other words, these variables are case sensitive. This means that declaring  name= 2 & Name = 4 would create two different variables.

In the previous video, you understood how to declare a variable in python. In this video, you will learn about common data types that are available in Python language and also learn how to find a type of a particular variable.

In the previous video, you learned about the various data types supported in Python. Now, let us move on and see how you can change a one data type to another in Python called as typecasting from the video given below.

In order to change the data type of a particular variable, you can simply call the following inbuilt methods in python.

In the above snapshot of code, you are assigning a value to a variable (x) and then using typecasting, converting it into different data types. So for example, when you convert x into an integer it converts the floating-point value into an integer value.