What did you do?

Tried opening an image using image.show() with a .pyw file.

What did you expect to happen?

Logically, no cmd console should pop up, as the file is no console.

What actually happened?

PIL opens up a console when launching image viewer, presumably Windows Viewer (default viewer).

What are your OS, Python and Pillow versions?

• OS: Windows 10/11
• Python: 3.12
• Pillow: 10.2.0

To Replicate the Issue

Have a file with no console extension: main.pyw
Launch python file outside of an environment, IDE, or a console (cmd). Launch it, for example, from the Windows File Explorer.

from PIL import Image

img_path = 'your_image_path.png' # Replace with your image path

img = Image.open(img_path)

img.show()

Potential Solution

From what I've seen and understood, the issue is caused in ImageShow.py, show_file() line 116 with os.system(self.get_command(path, **options)). This line of code appears to be opening a new console if the file is ran with no console. However, it can be easily fixed by replacing os by subprocess: subprocess.call(self.get_command(path, **options), shell=True, creationflags=subprocess.CREATE_NO_WINDOW) (has been tested and works).