Pycharm unable to debug the Python Flask project

Question

I have a simple Flask based project in Pycharm. I am trying to debug this by right clicking and selecting debug option. But keeps getting below error:

Connected to pydev debugger (build 232.9559.58)
 * Serving Flask app 'app'
 * Debug mode: on
WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
 * Running on all addresses (0.0.0.0)
 * Running on http://127.0.0.1:8000
 * Running on http://192.168.0.29:8000
Press CTRL+C to quit
 * Restarting with stat
C:\Python311\python.exe: can't open file 'C:\\Program': [Errno 2] No such file or directory

Process finished with exit code 2

I am unable to understand why and what it is looking for in 'C:\\Program'. I am able to run the file perfectly fine and only having issues in debug. What can I try next?

Answer 1

This appears to be a bug in Pycharm. Multiple issues have been raised for the same in the JetBrains bug tracker.

• FLASK_DEBUG=1 breaks debugger when Python/PyCharm installation path has spaces
• Flask Debug session cannot be started in PyCharm
• Flask debugger is not working on Windows because of white space in installation directory if application is specified
• flask server run failed because of space character in file path
• Can not run flask project in debug mod

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