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Python is a powerful and versatile programming language that is widely used by developers across the globe. With its simplicity and readability, it has gained popularity for various applications, ranging from web development to data analysis. One of the primary ways to execute Python programs is through the Windows Command Prompt. Launching Python files using this command line interface provides a convenient and efficient method for executing and testing Python scripts. In this guide, we will explore the process of launching Python files using the Windows Command Prompt, allowing programmers to harness the full potential of Python in their development projects.
This article is co-authored by a team of editors and trained researchers who confirm the accuracy and completeness of the article.
The wikiHow Content Management team carefully monitors the work of editors to ensure that every article is up to a high standard of quality.
This article has been viewed 49,381 times.
This wikiHow teaches you how to open Python files using the built-in Command Prompt program on Windows computers. In most cases, you will open the file without any problems as long as Python is available on the machine. If your computer uses an old version of Python, or you customized it when installing and did not add the “python” command to the “Path” variable list, proceed to add Python to the “Path” variable list to be able to start run the Python file through Command Prompt.
Steps
Find Python file path
![Image titled Use Windows Command Prompt to Run a Python File Step 1](https://www.wikihow.com/images_en/thumb/1/1c/Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-1.jpg/v4-728px-Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-1.jpg)
- If you already know the directory path of the Python file to open, you can open the file on Command Prompt right away.
![Image titled Use Windows Command Prompt to Run a Python File Step 2](https://www.wikihow.com/images_en/thumb/3/3d/Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-2.jpg/v4-728px-Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-2.jpg)
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- You can copy the location by highlighting the information (click and drag your mouse over the “Location” value) and then press Ctrl + C .
Launch Python file
![Image titled Use Windows Command Prompt to Run a Python File Step 6](https://www.wikihow.com/images_en/thumb/c/c7/Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-6.jpg/v4-728px-Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-6.jpg)
![Windows Start](https://www.wikihow.com/images_en/0/07/Windowsstart.png)
. Click the Windows icon in the lower left corner of the screen. The Start menu will pop up.
![Image titled Use Windows Command Prompt to Run a Python File Step 7](https://www.wikihow.com/images_en/thumb/9/9e/Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-7.jpg/v4-728px-Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-7.jpg)
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![Windows cmd](https://www.wikihow.com/images_en/6/66/Windowscmd1.png)
Command Prompt appears at the top of the Start menu. Command Prompt will open.
![Image titled Use Windows Command Prompt to Run a Python File Step 9](https://www.wikihow.com/images_en/thumb/9/9f/Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-9.jpg/v4-728px-Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-9.jpg)
- For example, to open a Python file located in the “Files” folder on the Desktop, you need to enter cd desktop/Files here.
- If you copied the file path then type cd with a space and then press Ctrl + V to paste the path.
![Image titled Use Windows Command Prompt to Run a Python File Step 10](https://www.wikihow.com/images_en/thumb/8/80/Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-10.jpg/v4-728px-Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-10.jpg)
- For example, if the Python file is named “script” then you need to enter python script.py here.
- If the Python file has more than one space in the name, we enclose the name with the file extension in quotes (e.g. python "my script.py" ).
![Image titled Use Windows Command Prompt to Run a Python File Step 11](https://www.wikihow.com/images_en/thumb/7/70/Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-11.jpg/v4-728px-Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-11.jpg)
- If the error
'python' is not recognized as an internal or external command
appears after pressing Enter , you need to add Python to the PATH list and then try again.
Add Python to PATH list
![Image titled Use Windows Command Prompt to Run a Python File Step 12](https://www.wikihow.com/images_en/thumb/8/80/Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-12.jpg/v4-728px-Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-12.jpg)
- Open File Explorer
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.
- Click the View tab.
- Check the “Hidden items” box.
![Image titled Use Windows Command Prompt to Run a Python File Step 13](https://www.wikihow.com/images_en/thumb/3/39/Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-13.jpg/v4-728px-Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-13.jpg)
- Click This PC on the left side of the File Explorer window.
- Double-click the hard drive located in the “Devices and drives” section.
- Scroll down and double-click the “Users” folder.
- Double-click the folder with your username.
- Scroll down and double click “AppData”.
- Double-click “Local”.
- Scroll down and double-click “Programs”.
- Double click on the “Python” folder.
- Double-click the Python folder with the appropriate version number (e.g. “Python36”).
![Image titled Use Windows Command Prompt to Run a Python File Step 14](https://www.wikihow.com/images_en/thumb/3/34/Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-14.jpg/v4-728px-Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-14.jpg)
![Image titled Use Windows Command Prompt to Run a Python File Step 15](https://www.wikihow.com/images_en/thumb/0/0f/Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-15.jpg/v4-728px-Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-15.jpg)
![Windows Start](https://www.wikihow.com/images_en/0/07/Windowsstart.png)
. A menu will pop up.
- You can also press ⊞ Win + X to open the Power User pop-up menu.
![Image titled Use Windows Command Prompt to Run a Python File Step 16](https://www.wikihow.com/images_en/thumb/d/d8/Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-16.jpg/v4-728px-Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-16.jpg)
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- You may need to scroll your mouse pointer up or down on the “User variables” pane to find the “Path” variable.
![Image titled Use Windows Command Prompt to Run a Python File Step 21](https://www.wikihow.com/images_en/thumb/8/85/Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-21.jpg/v4-728px-Use-Windows-Command-Prompt-to-Run-a-Python-File-Step-21.jpg)
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This article is co-authored by a team of editors and trained researchers who confirm the accuracy and completeness of the article.
The wikiHow Content Management team carefully monitors the work of editors to ensure that every article is up to a high standard of quality.
This article has been viewed 49,381 times.
This wikiHow teaches you how to open Python files using the built-in Command Prompt program on Windows computers. In most cases, you will open the file without any problems as long as Python is available on the machine. If your computer uses an old version of Python, or you customized it when installing and did not add the “python” command to the “Path” variable list, proceed to add Python to the “Path” variable list to be able to start run the Python file through Command Prompt.
In conclusion, launching Python files using the Windows Command Prompt is a simple and effective way to run Python programs on a Windows operating system. By following the step-by-step instructions provided, users can easily navigate through directories, access the Command Prompt, and execute Python scripts seamlessly. This method not only provides greater control and flexibility but also allows for the inclusion of additional commands and parameters to enhance the execution process. Overall, mastering the art of launching Python files using the Windows Command Prompt is a valuable skill for any Python programmer, as it streamlines the development process and helps to ensure successful execution of Python programs.
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