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# How to Run Python Scripts in Mac Terminal: A Clear Step-by-Step Guide
- URL: https://macfixly.com/run-python-scripts-mac-terminal/
- Published: 2026-10-16T19:40:00.000Z
- Updated: 2026-10-16T19:40:00.000Z
- Description: This guide shows you how to run Python scripts in Mac Terminal with step-by-step instructions for setup, execution, and troubleshooting.
- Author: Macuser
- Tags: Python, Mac Terminal, Programming, Scripting

You want to run a Python script but aren't sure how to execute it via the Mac Terminal. Maybe you've written a script or downloaded one and need to know the exact steps to launch it correctly without errors.

This guide focuses on how to run Python scripts in Mac Terminal, walking you through [environment setup](https://macfixly.com/set-environment-variables-zsh-mac/), script execution, interactive use, and stopping scripts. It also includes troubleshooting tips and instructions for running Python code within the VS Code terminal on macOS.

## Key takeaways

- Verify Python installation and version using **python3 --version** in Terminal before running scripts.
- Run scripts by navigating to their directory and entering **python3 scriptname.py**.
- Use **python3** alone in Terminal to enter interactive mode for quick code testing.
- Stop running scripts with **Control + C** in Terminal.
- VS Code terminal supports the same Python commands and integrates well with macOS Terminal workflows.

## Before you start: what you need to run Python scripts on Mac Terminal

To run Python scripts in the Mac Terminal, you first need to ensure your environment is properly set up. macOS comes with a system Python version pre-installed, but this may be outdated or limited. It is useful to verify which Python versions are available on your system.

1. Open the Terminal app (found in Applications > Utilities or search with Spotlight). You should see a command prompt starting with your username.
2. Type **python3 --version** and press Enter. If Python 3 is installed, you will see its version number, for example, *Python 3.9.1*. If you only get an error or no response, Python 3 may not be installed or accessible.
3. Check the system Python version by typing **python --version** and pressing Enter. This often points to Python 2.7 on macOS, which is deprecated and not recommended for new scripts.
4. If Python 3 is not installed, consider installing it via the official Python website or [package managers like Homebrew](https://macfixly.com/update-homebrew-packages-mac-terminal/). Having Python 3 as your default interpreter is best for modern scripts.
5. Ensure you have a Python script file ready, typically with the *.py* extension. A minimal example is a file named *hello.py* containing `print("Hello, world!")`.
6. Familiarize yourself with basic Terminal commands such as `ls` to list files and `cd` to change directories, which you will use to navigate to your script location.
7. Optionally, install a text editor or integrated development environment (IDE) like Visual Studio Code (VS Code) for easier script creation and editing on your Mac.

## How to run python script in terminal on Mac

To execute a Python script on your Mac via Terminal, you first need to navigate to the directory containing your script file. This is done using the **cd** (change directory) command.

1. Open Terminal and type `cd` followed by the path to the folder with your Python script. For example, if your script is in the Documents folder, enter: `cd ~/Documents`. Press Enter. You should now be in the correct directory, confirmed by the prompt showing your folder path.
2. Run your Python script by typing `python scriptname.py` or `python3 scriptname.py`, replacing *scriptname.py* with your actual file name. Press Enter to execute.
3. Decide between `python` and `python3` based on your system’s Python version setup. macOS often has Python 2 linked to `python` and Python 3 to `python3`. Running `python3 --version` will confirm if Python 3 is installed and accessible via that command.
4. If you get a permission denied error, your script file might not be executable. Fix this by typing `chmod +x scriptname.py` and pressing Enter. Then, you can run the script using `./scriptname.py` if the script starts with a proper shebang (e.g., `#!/usr/bin/env python3`).

For example, after navigating to your folder, typing `python3 hello.py` might output *Hello, world!* confirming the script ran successfully.

This method ensures you are in the right folder and using the correct Python command, tailored to your Mac’s environment.

## How to use python in Mac Terminal interactively

You can run Python commands directly in the Mac Terminal without creating a script file by launching the interactive Python shell. This mode is useful for testing small code snippets, experimenting with Python features, or performing quick calculations.

![How to use python in Mac Terminal interactively – how to run Python scripts in Mac Terminal](https://macfixly.com/content/images/2026/10/run-python-scripts-mac-terminal-2.webp)

1. Open Terminal on your Mac.
2. Type **python3** (or **python** if that points to Python 3 on your system) and press Enter. You should see a prompt starting with `>>>`, indicating the interactive Python shell is active.
3. Enter simple Python commands, such as `print("Hello, Mac Terminal!")` or `2 + 3 * 4`, and press Enter to see immediate results.
4. To exit the interactive shell, type `exit()` or press **Ctrl + D**. The Terminal will return to the regular command prompt.

Example session:

> `$ python3  
>>>> print("Hello, Mac Terminal!")  
> Hello, Mac Terminal!  
>>>> 5 ** 2  
> 25  
>>>> exit()`

Interactive mode differs from script execution in that it processes one command at a time, showing results immediately, while script mode runs a complete file of commands sequentially. Use interactive mode for quick tests and learning, and script mode for automating tasks or running complex programs.

## How to run python code in Mac OS Terminal without a script file

You can execute Python code snippets directly from the Mac Terminal without creating a script file by using the **\-c** option with the `python3` command. This allows you to pass Python code as a string right in the command line.

1. [Open the Terminal app](https://macfixly.com/open-apps-terminal-mac/) on your Mac.
2. Type a command using `python3 -c 'code'`, replacing `code` with the Python expression you want to run. For example, `python3 -c 'print("Hello, Mac Terminal!")'`. When executed correctly, you should see *Hello, Mac Terminal!* printed immediately below the command.
3. Try running a simple calculation inline. Enter `python3 -c 'print(3 * 7 + 2)'`. The output will be *23*, showing the expression was evaluated and printed.
4. Run multiple statements by separating them with semicolons. For example, `python3 -c 'import sys; print(sys.version)'` will display the installed Python version details.
5. Use this method when you want to quickly test a small snippet, perform a one-time calculation, or check Python functionality without creating or opening a script file.

This approach is efficient for short tasks but becomes unwieldy with longer code. For anything more complex, it’s better to use a script file or the interactive shell.

## How to stop running python script in terminal Mac

When you need to interrupt a running Python script in the Mac Terminal, the most common method is to use the keyboard shortcut Control + C. This sends an interrupt signal (SIGINT) to the Python process, which usually stops the script immediately and returns you to the command prompt.

1. **Press Control + C:** While the script is running, hold down the Control key and press the C key. You should see the script stop, and Terminal will display a new prompt ready for your next command.
2. **Confirm the script has stopped:** If the prompt appears and the script output ceases, the interrupt was successful.

This method works well for scripts running in normal conditions. The SIGINT signal allows Python to perform any cleanup defined in your script's signal handlers or simply terminate if none are set.

If Control + C does not stop the script—for example, if the script is stuck in a system call or handling signals differently—you can try alternative approaches:

1. **Close the Terminal window:** This forces the entire Terminal session, including the running script, to terminate. However, this closes all commands running in that window.
2. **Use the Activity Monitor:** Open the Activity Monitor app, find the Python process by name or process ID, select it, and click the stop button (an octagon with an X). Choose "Quit" or "Force Quit" to terminate the script.
3. **Use the kill command:** In another Terminal window, run *ps aux | grep python* to find the process ID (PID) of the running script, then execute *kill PID* or *kill -9 PID* to force termination.

Stopping a script is necessary when it enters an infinite loop, hangs due to external resource waits, or behaves unexpectedly. Using Control + C is the safest and quickest way, allowing the script to handle interruption gracefully. Alternatives should be used cautiously since they force termination without cleanup.

## Running Python scripts in VS Code terminal on Mac

VS Code offers an integrated terminal that lets you run Python scripts without leaving the editor, streamlining your development workflow. You can open this terminal via the menu by selecting **View > Terminal**, or by pressing **Ctrl + \`** (backtick) on your keyboard. The integrated terminal behaves similarly to the macOS Terminal, allowing you to run Python commands and scripts with familiar syntax.

![Running Python scripts in VS Code terminal on Mac – how to run Python scripts in Mac Terminal](https://macfixly.com/content/images/2026/10/run-python-scripts-mac-terminal-3.webp)

1. Open your Python script in VS Code. Once the editor displays your script, open the integrated terminal using **View > Terminal** or **Ctrl + \`**. You should see a command prompt at the bottom of the window.
2. Navigate to your script’s directory if it’s not already the current directory. Use the `cd` command just like in macOS Terminal. For example, `cd ~/Documents/PythonProjects`. When successful, the terminal prompt updates to reflect the new path.
3. Run your script by typing `python3 scriptname.py` and pressing Enter. The output appears directly in the integrated terminal, matching what you would see in the regular Terminal app.
4. To stop a running script, press **Control + C**, identical to the macOS Terminal behavior.

The main advantage of using VS Code's terminal is the tight integration with code editing and debugging tools. You can set breakpoints, inspect variables, and step through your code using VS Code’s debugging panel, which is not available in the standalone macOS Terminal. This integration improves efficiency by keeping coding, running, and debugging tasks within a single interface.

Compared to the macOS Terminal, the VS Code terminal also supports multiple tabs and shells, making it easier to manage different projects or environments simultaneously. However, the underlying commands and output format remain consistent, ensuring familiarity for users transitioning between terminals.

## Troubleshooting common issues when running Python scripts in Mac Terminal

Running Python scripts in the Mac Terminal can sometimes lead to errors related to environment setup, permissions, or dependencies. Addressing these issues methodically ensures smoother execution.

### Python not found or command not recognized errors

If you see errors like *command not found: python* or *python: command not recognized*, it means the Terminal cannot locate Python.

1. Check Python installation by running **python3 --version**. You should see the installed Python version.
2. If the command is not found, install Python 3 via the official installer from python.org or use Homebrew (`brew install python`).
3. Verify that `/usr/local/bin` or the Python install path is included in your PATH environment variable by running `echo $PATH`. Adjust your shell profile (e.g., `~/.zshrc`) if needed.
4. After adjustments, restart Terminal and confirm Python runs with `python3 --version`.

### Permission denied or file not executable

Errors like *Permission denied* occur when you lack execute rights on the script.

1. Check file permissions using `ls -l scriptname.py`.
2. If execute permission is missing, run `chmod +x scriptname.py` to add it.
3. Run the script again with `python3 scriptname.py`. If you still get permission errors, ensure the parent directory is accessible.

### Version conflicts between python and python3

macOS may have both Python 2 and Python 3 installed, causing confusion.

1. Confirm which Python version runs by default with `python --version`.
2. Use `python3` explicitly to run scripts to avoid invoking Python 2.
3. Consider setting an alias in your shell profile: `alias python=python3` for consistency.

### Script errors due to environment or dependencies

Many Python scripts require external packages or specific environments.

1. Check for ImportError messages indicating missing modules.
2. Install required packages with `pip3 install package_name`.
3. Use virtual environments (`python3 -m venv env`) to manage dependencies isolated from system Python.
4. Activate the environment with `source env/bin/activate` before running scripts to ensure correct packages are used.

Following these steps helps you identify and fix common hurdles, making your Python scripting on Mac Terminal more reliable.

## More on this topic

- [How to Install Oh My Zsh in Mac Terminal: A Clear Step-by-Step Guide](https://macfixly.com/install-oh-my-zsh-mac-terminal/)
- [How to Generate an SSH Key in Mac Terminal: A Step-by-Step Guide](https://macfixly.com/generate-ssh-key-mac-terminal/)

## Frequently asked questions

### How to run python script on mac?

To run a Python script on a Mac, open the Terminal app and navigate to the folder containing your script using the `cd` command. Then type `python3 scriptname.py` and press Enter. Ensure Python 3 is installed and set as the default Python version on your system.

### How to run python on mac terminal?

Launch Terminal and type `python3` to start the interactive Python shell. This lets you write and execute Python commands directly within the Terminal. To exit, type `exit()` or press `Ctrl + D`.

### How to run a python script in mac os?

Open Terminal and navigate to your script’s directory with `cd`. Run the script by typing `python3 filename.py`. If you get a “command not found” error, you may need to install Python 3 or adjust your PATH environment variable.

### How to run.py in mac terminal?

Use Terminal to locate the.py file with `cd` and run it by entering `python3 filename.py`. Make sure the script file has the correct permissions; if not, use `chmod +x filename.py` to make it executable.

### How to run python script in mac terminal?

Navigate to your script’s folder in Terminal and type `python3` followed by the script’s name. For example, `python3 myscript.py`. Confirm Python 3 is installed by typing `python3 --version` before running the script.

## What this guide does not cover and who should look elsewhere

This guide assumes a basic familiarity with Terminal commands and does not cover advanced Python environment management like virtual environments, package installation using pip, or configuring complex project dependencies. If you need to manage multiple Python versions, isolate project environments, or install third-party libraries, consider exploring tools like pyenv, virtualenv, or Anaconda. Additionally, users looking to deploy Python applications or automate workflows beyond simple script execution may require more specialized tutorials or integrated development environments.

To further enhance your Python experience on macOS, the single most useful next step is to learn how to set up and use virtual environments. This will allow you to manage dependencies cleanly and avoid conflicts between projects, providing a foundation for more complex Python development workflows.