Hour
Python Programming Tutorial
In this Python tutorial, you'll learn everything you need to start
programming in Python. This tutorial is perfect for data
science, machine learning, and web development. No prior
knowledge in Python or programming is required as everything
will be taught from scratch. I'm Mosh Hamadani, and I've
taught millions of people how to code through this channel. If
you're new here, make sure to subscribe as I upload new
videos every week. Let's jump in and get started.
What is Python?
Python is a multipurpose programming language that can be
used for a variety of different tasks, such as automation, web
development, and data science.
You can use Python in automation to automate
repetitive tasks and save time and increase
productivity.
You need to install a code editor to write your own
Python code.
You can build amazing websites powered by Python.
We'll be using PyCharm as our code editor in this tutorial.
When you open PyCharm for the first time, you have to
configure a few settings, but we can skip that for now and set
defaults. Let's create a new project and collapse the project
window to give more space. We can then print a message on
our application window.
Running Python Code
To run Python code in PyCharm, we go to the run menu and
select run, or use the shortcut (ctrl+shift+r on a Mac). Then
select the app to run, and the output will appear in the
terminal window. Python is case sensitive so make sure to use
the correct case when coding. We can declare variables, such
as age and price, and assign them values. Python also has
boolean values that can be true or false.
, Now let's start coding!
age = 30
print(age)
price = 19.95
print(price)
Declare and Use Variables in Python
Here's a little exercise for you: imagine we want to write a
program for a hospital, so we're going to check in a patient
named John Smith. He's 20 years old and is a new patient. I
want you to declare a few variables to store these values.
Use the comment section below to share your code.
Receiving User Input in Python
In Python, we have a built-in function called input() that we
use to read a value from the terminal window. We can add a
string argument to the function to prompt the user for input.
Let's write a simple program to demonstrate this:
name = input("What is your name? ")print("Hello, " +
name)
When we run this program, it will prompt the user to input their
name. Once a value is entered, the program will print the
greeting message with the input value.
Data Types in Python
There are three main data types in Python: numbers, strings,
and booleans.
Numbers - This includes integers and floating-point
numbers.
Strings - This includes textual data.
Booleans - This includes True and False values.
Converting Data Types in Python