Understanding the Difference Between pythonw.exe and python.exe
When dealing with Python scripts, you'll encounter two executable files: pythonw.exe and python.exe. Understanding the subtle but significant distinctions between them is crucial for choosing the appropriate tool.
python.exe: The Console Application Invoker
python.exe is a console application designed to execute Python scripts that require a text-based interface. Key attributes of python.exe include:
- Opens a new console window (unless already running in one)
- Input and output streams (sys.stdin, sys.stdout, and sys.stderr) are connected to the console
- Execution is synchronous in terminal windows
- Default association for *.py files
pythonw.exe: The GUI and Silent Script Launcher
pythonw.exe, on the other hand, is a GUI application for launching scripts that do not require user interaction:
- Does not open a console window, making it ideal for GUI or non-interactive scripts
- Execution is asynchronous, allowing for rapid script initiation without blocking the command line
- Input and output streams are not accessible, posing potential issues if print() is used
- Default association for *.pyw files
Choosing the Right Executable
To decide which executable to use, consider the nature of your script:
- For command-line scripts, user interaction, or debugging, use python.exe.
- For GUI-based applications or non-interactive scripts, use pythonw.exe.
File Extension and Associations
You can control the default executable association for your scripts by adjusting the file extension:
- *.py files default to python.exe
- *.pyw files default to pythonw.exe
The above is the detailed content of Pythonw.exe vs python.exe: When to Use Which?. For more information, please follow other related articles on the PHP Chinese website!

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