"No python processes found" for Python 3.10 on Windows

[henriquegemignani]

The following command:
py-spy top -s -- py -3.10 script.py
Fails with Error: No python processes found in process 3872 or any of its subprocesses, while the script itself runs successfully.
If I instead run py-spy top -s -- py -3.9 script.py, it works perfectly.

Environment:

• Python 3.10.4
• Python 3.9.12
• py-spy 0.3.12
• Windows 11, build 10.0.22000

[janikarki]

I'm also getting one of these, depending on how I try to run.

$ py-spy record -p <pid> -o <file>
Error: Failed to find a python interpreter in the .data section

$ py-spy record -s -p <pid> -o <file>
Error: No python processes found in process <pid> or any of its subprocesses

$ py-spy record -o <file> -- python main.py
Error: Failed to find python version from target process

$ py-spy record -s -o <file> -- python main.py
[ python program runs, but no py-spy output file is written upon interrupt ]

• Python 3.10.0 - 3.10.5
• py-spy 0.3.12
• Windows 10

[windelbouwman]

I got a similar error:

 (.venv) C:\project>py-spy top -- python gui.py
Error: Failed to find python version from target process

• Python 3.10.6
• py-spy 0.3.14
• Windows 10

[fleimgruber]

Also seeing this with Python 3.10.11

[rambo]

I guess #216 is relevant as well. I'm seeing same issue as #216 (comment) on python 3.11.9 in virtualenv.

[tmct]

I'm afraid we still see the "No python processes" failure when using --subprocesses, using Python 3.10 from a virtual environment.

[sam-s]

on windows 10:

$ py-spy.exe dump --subprocesses --pid 20588
Error: Failed to find python version from target process
$ python --version
Python 3.12.7
$ py-spy.exe --version
py-spy 0.3.14

should I file a separate report?

[zanieb]

I don't think the 3.12 support has been released, it was just recently merged.

[benfred]

This should be fixed in the lastest release (0.4.0) - by #543 and #718.

Can you try this out and re-open if the latest version doesn't fix for you?

[tim-stephenson]

I am on py-spy 0.4.0 and python 3.12 and still getting "Failed to find python version from target process" without the "-s" flag and "No python processes found in process <pid> or any of its subprocesses".

[tim-stephenson]

I am on py-spy 0.4.0 and python 3.12 and still getting "Failed to find python version from target process" without the "-s" flag and "No python processes found in process or any of its subprocesses".

Looking into this more, I would guess this is due to other python 3.12 issues, as things seem to be working fine on python 3.10.

• Error: 仅完成部分的 ReadProcessMemory 或 WriteProcessMemory 请求。 (os error 299) #728
• OS error 998 when connecting to Python 3.12 process on Windows #727
• Error: Failed to find python version from target process (py-spy 0.4.0, python 3.12) #726