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
Python has several built-in functions for converting the types of
our variables. For example, we have the int() function for
converting a value to an integer:
birth_year = "1982"age = 2020 -
int(birth_year)print("You are " + str(age) + " years
old.")
In the above example, we use the int() function to convert
the birth_year string to an integer so we can subtract it from
the current year.
We also have the float() function for converting a value to a
float:
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
Python has several built-in functions for converting the types of
our variables. For example, we have the int() function for
converting a value to an integer:
birth_year = "1982"age = 2020 -
int(birth_year)print("You are " + str(age) + " years
old.")
In the above example, we use the int() function to convert
the birth_year string to an integer so we can subtract it from
the current year.
We also have the float() function for converting a value to a
float:
