Howdy friends!
If you’re reading this, chances are you’re interested in learning Python. Maybe you’ve tried to learn in the past but found the going tough, or maybe you’re just starting and don’t know where to begin.
Whatever your situation, I’m here to tell you that you can learn Python in just 7 days!
I know it sounds hard to believe, but it’s true. I learned Python myself in just one week, and it’s changed my life for the better.
Not only is Python an incredibly powerful and versatile programming language, but it’s also easy to learn. And once you know Python, you’ll be able to code your apps, automate boring tasks, and even create your websites and games.
Sound good? Then let’s get started!
Day 1:
The first thing you need to do is install Python. It’s available for free from the Python website, so just head over there and download the latest version.
Once you’ve got Python installed, fire up your favorite text editor and create a new file called “hello.py”.
In this file, we’re going to write a simple Python program that prints “Hello, world!” to the screen.
Type the following into your hello.py file:
print(“Hello, world!”)
Save the file and then open a terminal window. Navigate to the directory where your hello.py file is saved and then type the following command to run it:
python hello.py
You should see the output “Hello, world!” printed on the screen.
Congratulations! You’ve just written your first Python program.
Day 2:
Now that you’ve got the basics of Python down, let’s learn about variables.
A variable is a name that we give to a value, like a number or a string of text. We can create a variable by using the “var” keyword like this:
var my_name = “Mike”
In the above example, we’ve created a variable called “my_name” and assigned it the value “Mike”.
We can then access the value of a variable by using its name, like this:
print(my_name)
The output of the above code would be “Mike”.
Try creating some variables of your own and then printing them to the screen to see what happens.
Day 3:
Now that you know about variables, let’s learn about lists.
A list is a data structure that allows us to store a collection of values. We can create a list by using the “list” keyword like this:
list my_list = [1,2,3,4,5]
In the above example, we’ve created a list called “my_list” and assigned it the values 1, 2, 3, 4, and 5.
We can then access the values in a list by using their index, which is their position in the list. We access values in a list by using square brackets, like this:
print(my_list[0])
The output of the above code would be 1.
Try creating some lists of your own and accessing the values in them to see what happens.
Day 4:
Now that you know about lists, let’s learn about dictionaries.
A dictionary is a data structure that allows us to store a collection of values, where each value has an associated key. We can create a dictionary by using the “direct” keyword like this:
dict my_dict = {“key1”: “value1”, “key2”: “value2”, “key3”: “value3”}
In the above example, we’ve created a dictionary called “my_dict” and assigned it the keys “key1”, “key2”, and “key3” with the respective values “value1”, “value2”, and “value3”.
We can then access the values in a dictionary by using their key, like this:
print(my_dict[“key1”])
The output of the above code would be “value1”.
Try creating some dictionaries of your own and accessing the values in them to see what happens.
Day 5:
Now that you know about dictionaries, let’s learn about functions.
A function is a block of code that takes one or more input values and produces an output value. We can define a function by using the “def” keyword like this:
def my_function(input1, input2):
output = input1 + input2
return output
In the above example, we’ve defined a function called “my_function” that takes two inputs and returns their sum.
We can then call a function by using its name, like this:
result = my_function(1,2)
The output of the above code would be 3.
Try defining some functions of your own and see what happens.
Day 6:
Now that you know about functions, let’s learn about classes.
A class is a template for creating objects. We can define a class by using the “class” keyword like this:
class MyClass:
def __init__(self, input1, input2):
self.input1 = input1
self.input2 = input2
In the above example, we’ve defined a class called “MyClass” that takes two inputs and assigns them to the variables “self.input1” and “self.input2”.
We can then create an object of this class by using the “class” keyword, like this:
my_object = MyClass(1,2)
The output of the above code would be an object of the class “MyClass” with the variables “input1” and “input2” set to 1 and 2 respectively.
Try defining some classes of your own and see what happens.
Day 7:
Now that you know about classes, let’s learn about modules.
A module is a Python file that contains a collection of functions, classes, or variables. We can import a module by using the “import” keyword like this:
import my_module
In the above example, we’ve imported the module “my_module”.
We can then access the functions, classes, or variables in a module by using the “module” keyword, like this:
my_module.my_function()
The output of the above code would be the result of calling the function “my_function” from the module “my_module”.
Try importing some modules of your own and see what happens.
That’s it! You’ve now learned the basics of Python and should be able to start coding your programs.
If you want to learn more, be sure to check out the resources below. And if you have any questions, feel free to post them in the comments and I’ll be happy to help.
Resources:
- The Python Tutorial: https://docs.python.org/3/tutorial/
- Learn Python the Hard Way: https://learnpythonthehardway.org/
- Dive Into Python 3: http://www.diveintopython3.net/
- Google’s Python Class: https://developers.google.com/edu/python/
- Python for YouTubers: https://www.youtube.com/watch?v=N4mEzFDjqtA&list=PL6gx4Cwl9DGAcbMi1sH6oAMk4JHw91mC_