Is Computer Programming Hard?(Get 31 Easy Ways)

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Is Computer Programming Hard?

Is Computer Programming Hard?

1. Get the background

Do you want to start learning how to program?

Getting into computer programming can be daunting.

And you may think that you need to take classes in order to learn.

While that may be true for some languages.

There are a variety of programming languages that will only take a day or two to grasp the basics.

Python is one of those languages. You can have a basic Python program up and running in just a few minutes.

See Steps below to learn how.

The short answer is yes. Programming computers is all about learning certain languages.
Just like learning any type of foreign language, it is not necessarily easy to master quickly.
But it is not impossible to make major strides in a short time.

2. Know the Python language

Know the Python language is an easy to use, fun and easy to learn programming language that is smaller and more compressed than C, C++, Java or binary. You can automate more things in one sentence than in single files alone. Another pro of using Python is that you can test your code whenever you need to, and it is just a simple save.

Is Computer Programming Hard?

3. Choose which version you want to install.

 There are currently two versions of Python available: 3.x.x and 2.7.10. Python makes both available to download, but new users should choose the 3.x.x version. Download the 2.7.10 if you are going to be working with legacy Python code or with programs and libraries that haven’t adopted 3.x.x yet.

  • This guide will assume you are installing 3.x.x.

4. Run the installer after downloading it.

Clicking the button for the version you want will download the installer for it.

Run this installer after it has finished downloading.

5. Check the “Add Python 3.5 to PATH” box.

This will allow you to run Python directly from the Command Prompt.

Is Computer Programming Hard?

6. Click “Install Now”.

This will install Python with all of its default settings, which should be fine for most users.

  • If you want to disable certain functions, change the installation directory, or install the debugger, click “Customize installation” instead and then check or uncheck the boxes.

7. Decide if you want to install Python 3.x.x.

All versions of OS X come with Python 2.7 already installed.

If you don’t need the newer version of Python, you don’t need to install anything.

If you want access to the newest versions of Python, you’ll want to install 3.x.x.

  • If you just want to use the included version of Python, you can create scripts in a text editor and run them through the terminal.

Is Computer Programming Hard?

8. Download the Python 3.x.x files from the Python website.

Visit (python.org/downloads on your Mac. It should detect your operating system and show the Mac installation files. If it doesn’t, click the “Mac OS X” link.

9. Double-click the downloaded PKG file to start installing Python.

Follow the prompts to install Python. Most users can just use the default settings.

10. Launch Python in the terminal.

To verify that the installation went OK, launch the terminal and type python3. This should start the Python 3.x.x interface, and display the version.

11. Check the version of Python you already have installed.

Nearly every distribution of Linux comes with Python installed.

You can see what version you have by opening the Terminal and typing python.

12. Install the newest version in Ubuntu.

Open the Terminal window and type sudo apt-get install python.

  • You can also install Python using Ubuntu’s Add/Remove Applications app located in the Applications window.

13. Install the newest version in Red Hat and Fedora.

Open the Terminal window and type sudo yum install python.

Is Computer Programming Hard?

14. Install the newest version in Arch Linux.

Log in as the root user. Type pacman -S python.

15. Download the IDLE environment.

If you want to use the Python development environment.

You can get it by using your distribution’s software manager.

Just search for “python idle” to find and install the package.

16. Install a text editor.

While you can create Python programs in Notepad or TextEdit.

You will find it much easier to read and write the code using a specialized text editor.

There are a variety of free editors to choose from such as Sublime Text (Any system), Notepad++ (Windows), TextWrangler (Mac), or JEdit (Any system).

Is Computer Programming Hard?

17. Test your installation.

Open Command Prompt (Windows) of your Terminal (Mac/Linux) and type python.

Python will load and the version number will be displayed.

You will be taken to the Python interpreter command prompt, shown as >>>.

  • Type print("Hello, World!") and press  Enter.
  • You should see the text Hello, World! displayed beneath the Python command line.

18. Understand that Python doesnt need to compile.

Python is an interpreted language.

Which means you can run the program as soon as you make changes to the file.

This makes iterating, revising, and troubleshooting programs much quicker than many other languages.

  • Python is one of the easier languages to learn.
  • And you can have a basic program up and running in just a few minutes.

Is Computer Programming Hard?

19. Mess around in the interpreter.

You can use the interpreter to test out code without having to add it to your program first.

This is great for learning how specific commands work, or writing a throw-away program.

20. Learn how Python handles objects and variables.

Python is an object-oriented language, meaning everything in the program is treated as an object.

Also, you will not need to declare variables at the beginning of your program (you can do it at any time)

And you do not need to specify the type of variable (integer, string, etc.).

Creating Your First Program

21. Open your text editor.

You can quickly create a test program that will get you familiar with the basics of creating and saving programs and then running them through the interpreter.

This will also help you test that your interpreter was installed correctly.

22. Create a “print” statement.

“Print” is one of the basic functions of Python, and is used to display information in the terminal during a program. Note: “print” is one of the biggest changes from Python 2 to Python 3. In Python 2, you only needed to type print followed by what you wanted displayed. In Python 3, print has become a function, so you will need to type “print()”, with what you want displayed inside the parentheses.

23. Add your statement.

One of the most common ways to test a programming language is to display the text Hello, World!” Place this text inside of the “print()” statement, including the quotation marks:

  • Unlike many other languages, you do not need to designate the end of a line with a ;. You also will not need to use curly braces ({}) to designate blocks. Instead, indenting will signify what is included in a block.

24. Save the file.

Click the File menu in your text editor and select Save As. In the dropdown menu beneath the name box, choose the Python file type. If you are using Notepad (not recommended), select “All Files” and then add “.py” to the end of the file name.

  • Make sure to save the file somewhere easy to access, as you will need to navigate to it in the command prompt.
  • For this example, save the file as “hello.py.

Is Computer Programming Hard?

25. Run the program.

Open your Command Prompt or Terminal and navigate to the location where you saved your file. Once you are there, run the file by typing hello.py and pressing  Enter. You should see the text Hello, World! displayed beneath the command prompt.

  • Depending on how you installed Python and what version it is, you may need to type python hello.py or python3 hello.py to run the program.

26. Test often.

One of the great things about Python is that you can test out your new programs immediately.

A good practice is to have your command prompt open at the same time that you have your editor open.

When you save your changes in your editor.

You can immediately run the program from the command line, allowing you to quickly test changes.

Building Advanced Programs

27. Experiment with a basic flow control statement.

Flow control statements allow you to control what the program does based on specific conditions.

 These statements are the heart of Python programming.

And allow you to create programs that do different things depending on input and conditions.

The while statement is a good one to start with.

In this example, you can use the while statement to calculate the Fibonacci sequence up to 100:

  • The sequence will run as long as (while) b is less than (<) 100.
  • The output will be 1 1 2 3 5 8 13 21 34 55 89
  • The end=' ' command will display the output on the same line instead of putting each value on a separate line.
  • There are a couple things to note in this simple program that are critical to creating complex programs in Python:
    • Make note of the indentation. A : indicates that the following lines will be indented and are part of the block. In the above example, the print(b) and a, b = b, a+b are part of the while block. Properly indenting is essential in order for your program to work.
    • Multiple variables can be defined on the same line. In the above example, a and b are both defined on the first line.
    • If you are entering this program directly into the interpreter, you must add a blank line to the end so that the interpreter knows that the program is finished.

28. Build functions within programs.

You can define functions that you can then call on later in the program.

This is especially useful if you need to use multiple functions within the confines of a larger program.

In the following example, you can create a function to call a Fibonacci sequence similar to the one you wrote earlier:

  • This will return 0 1 1 2 3 5 8 13 21 34 55 89 144 233 377 610 987

29. Build a more complicated flow control program.

Flow control statements allow you to set specific conditions that change how the program is run.

This is especially important when you are dealing with user input.

The following example will use the if, elif (else if), and else to create a simple program that evaluates the users age.

  • This program also introduces a few other very important statements that will be invaluable for a variety of different applications:
    • input() – This invokes user input from the keyboard. The user will see the message written in the parentheses. In this example, the input() is surrounded by an int() function, which means all input will be treated as an integer.
    • range() – This function can be used in a variety of ways. In this program, it is checking to see if the number in a range between 13 and 20. The end of the range is not counted in the calculation.

Is Computer Programming Hard?

30. Learn the other conditional expressions.

The previous example used the less than or equal (<=) symbol to determine if the input age met the condition.

You can use the same conditional expressions that you would in math, but typing them is a little different.

31. Continue learning.

These are just the basics when it comes to Python.

Although its one of the simplest languages to learn.

There is quite a bit of depth if you are interested in digging.

The best way to keep learning is to keep creating programs!

Remember that you can quickly write scratch programs directly in the interpreter.

And testing your changes is as simple as running the program from the command line again.

  • There are lots of good books available for Python programming, including, Python for Beginners”, Python Cookbook”, and “Python Programming: An Introduction to Computer Science.
  • There are a variety of sources available online, but many are still geared towards Python 2.X. You may need to make adjustments to any examples that they provide.
  • If you want to run python online but wish to run python 3, Repl has a python interpreter that uses virtual linux machines. Another good online resource for a future pythonista” (well-versed python programmer) is think functional. For bigger challenges, “Automate the Boring Stuffand Project Euler are also available.
  • Many local schools offer classes on Python. Oftentimes Python is taught in introductory classes as it is one of the easier languages to learn.
  • Python is one of the simpler computer languages, but it still takes a little dedication to learn. It also helps to have some basic algebra understanding, as Python is very mathematics-focused.

Conclusion

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Is Computer Programming Hard?

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