{"id":17877,"date":"2021-11-03T11:21:20","date_gmt":"2021-11-03T05:51:20","guid":{"rendered":"http:\/\/www.pythonpool.com\/?p=17877"},"modified":"2026-07-13T12:37:20","modified_gmt":"2026-07-13T07:07:20","slug":"pythonw-exe-has-stopped-working","status":"publish","type":"post","link":"https:\/\/www.pythonpool.com\/pythonw-exe-has-stopped-working\/","title":{"rendered":"Fix pythonw.exe Has Stopped Working on Windows"},"content":{"rendered":"

Quick answer:<\/strong> pythonw.exe hides the console for Windows GUI programs, so a startup exception can look like a generic crash. Run the same script with python.exe first, capture the traceback, verify sys.executable and the working directory, and only then repair packages or the installation.<\/p>\n

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Use python.exe while debugging so the hidden console reveals imports, paths, permissions, and startup exceptions before returning to pythonw.exe.<\/figcaption><\/figure>\n

pythonw.exe has stopped working<\/code> usually means a Windows GUI Python program crashed before it could show a useful message. The pythonw.exe<\/code> launcher is designed for windowed apps, so it does not keep a console open for normal output. That is convenient for Tkinter, PyQt, wxPython, and other desktop apps, but it can hide startup errors.<\/p>\n

The practical fix is to make the failure visible. Run the same file with python.exe<\/code> while debugging, write startup logs, check imports, confirm the current working folder, and repair the Python install if the crash happens before your script starts. Once the cause is known, you can switch back to pythonw.exe<\/code> for a cleaner desktop launch.<\/p>\n

The official Python documentation covers using Python on Windows<\/a>, Tkinter<\/a>, logging<\/a>, and faulthandler<\/a>.<\/p>\n

Do not start by reinstalling every package. First separate three cases: the wrong interpreter is launching the app, your script raises an exception during startup, or the Python installation itself is damaged. Each case leaves a different trail.<\/p>\n

If a double-clicked .pyw<\/code> file fails, open a terminal and run the same script with normal Python. A console run can show import errors, missing files, permission problems, bad paths, or framework messages that pythonw.exe<\/code> would hide. That one change often turns a vague Windows dialog into a specific traceback.<\/p>\n

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