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Python Installation | PyCharm

INF1511 - Visual Programming · Learning Python

Python Installation | PyCharm

In this topic, you will learn how to install Python and set up PyCharm, a popular Integrated Development Environment (IDE) for Python programming. These steps are essential for starting your journey in visual programming. A proper installation ensures that you can write, run, and debug your Python code efficiently.

Key idea: After this topic, you should be able to install Python and PyCharm on your computer and configure them for your programming tasks.

1. What is Python?

Python is a high-level programming language known for its simplicity and readability. It is widely used in various fields, including web development, data analysis, artificial intelligence, and more. Learning Python is beneficial for both beginners and experienced programmers.

2. What is PyCharm?

PyCharm is an IDE specifically designed for Python development. It provides features such as code completion, debugging tools, and project management capabilities. Using an IDE like PyCharm can significantly enhance your productivity as a programmer.

3. System Requirements

Before installing Python and PyCharm, ensure that your computer meets the following minimum requirements:

  • Operating System: Windows, macOS, or Linux
  • RAM: At least 4 GB (8 GB recommended)
  • Disk Space: At least 2 GB of free space for installation

4. Installing Python

4.1 Downloading Python

To install Python, follow these steps:

  1. Go to the official Python website: https://www.python.org/downloads/.
  2. Select the latest version of Python (e.g., Python 3.x.x).
  3. Click on the download link suitable for your operating system (Windows, macOS, or Linux).

4.2 Running the Installer

Once the download is complete, run the installer:

  1. For Windows, double-click the downloaded .exe file.
  2. For macOS, open the .pkg file.
  3. For Linux, open a terminal and run the command: sudo apt-get install python3 (this command may vary based on your distribution).

4.3 Installation Options

During installation, ensure you check the box that says “Add Python to PATH.” This option allows you to run Python from the command line easily. Follow the prompts to complete the installation.

5. Verifying the Python Installation

To confirm that Python is installed correctly, follow these steps:

  1. Open a command prompt (Windows) or terminal (macOS/Linux).
  2. Type the following command and press Enter:
python --version

If Python is installed correctly, you will see the version number displayed (e.g., Python 3.x.x).

6. Installing PyCharm

6.1 Downloading PyCharm

To install PyCharm, follow these steps:

  1. Go to the JetBrains website: https://www.jetbrains.com/pycharm/download/.
  2. Choose the Community Edition, which is free for students and beginners.
  3. Click on the download link suitable for your operating system.

6.2 Running the Installer

After downloading, run the installer:

  1. For Windows, double-click the downloaded .exe file.
  2. For macOS, open the .dmg file and drag PyCharm to the Applications folder.
  3. For Linux, extract the downloaded tar.gz file and run the script inside the bin directory.

6.3 Completing the Installation

Follow the installation prompts. You may choose to create a desktop shortcut for easier access. Once the installation is complete, open PyCharm.

7. Configuring PyCharm

7.1 Setting Up a New Project

When you open PyCharm for the first time, you will be prompted to create a new project:

  1. Click on “Create New Project.”
  2. Select the location for your project.
  3. Ensure that the Python interpreter is set to the version you installed earlier.

7.2 Creating Your First Python File

To create your first Python file in PyCharm:

  1. Right-click on the project folder in the left sidebar.
  2. Select “New” and then “Python File.”
  3. Name your file (e.g., hello.py) and click OK.

7.3 Writing Your First Python Code

In the new Python file, type the following code:

print("Hello, World!")

This code will print “Hello, World!” to the console. To run the code, right-click in the code editor and select “Run 'hello'.” You should see the output in the console at the bottom of the PyCharm window.

Tip: Familiarise yourself with the PyCharm interface. Explore the menus, toolbars, and settings to make your programming experience smoother.

8. Common Issues and Troubleshooting

8.1 Python Not Recognised

If you receive an error stating that Python is not recognised as a command, check the following:

  • Ensure that you checked the “Add Python to PATH” option during installation.
  • Restart your command prompt or terminal.

8.2 PyCharm Not Opening

If PyCharm does not open after installation:

  • Ensure your system meets the minimum requirements.
  • Check for any error messages and search online for solutions.

Watch out: Do not skip installing Python before PyCharm, as PyCharm requires Python to function properly.

9. Summary

  • Python is a versatile programming language.
  • PyCharm is a powerful IDE for Python development.
  • Ensure your system meets the requirements before installation.
  • Follow the steps to install Python and PyCharm carefully.
  • Verify the installation by checking the Python version.
  • Configure PyCharm to create and run Python projects.

Check your understanding

  • What are the minimum system requirements for installing Python and PyCharm?
  • How do you verify that Python is installed correctly on your system?
  • What steps do you need to follow to create a new Python project in PyCharm?
  • What should you do if you encounter an error stating that Python is not recognised?