Programming with Mosh
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)