[Windows 10 22H2] psutil.process_iter() results in PermissionError: [WinError 5] Access denied: '(originated from OpenProcess)'

[shinrax2]

Summary

• OS: { Windows 10 22H2 64bit }
• Architecture: { 64bit }
• Psutil version: { Name: psutil
  Version: 5.9.6 (from git)
  Summary: Cross-platform lib for process and system monitoring in Python.
  Home-page: https://github.com/giampaolo/psutil
  Author: Giampaolo Rodola
  Author-email: [email protected]
  License: BSD-3-Clause
  Location: C:\Users\shinrax2\AppData\Roaming\Python\Python311\site-packages
  Requires:
  Required-by: } also tried 5.9.5 from pypi
• Python version: { Python 3.11.4 64bit, installed via pyenv-win }
• Type: { core }

Description

Traceback (most recent call last):
  File "C:\Users\shinrax2\AppData\Roaming\Python\Python311\site-packages\psutil\_pswindows.py", line 797, in cmdline
    ret = cext.proc_cmdline(self.pid, use_peb=True)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
PermissionError: [WinError 5] Zugriff verweigert: '(originated from OpenProcess)'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):

File "C:\Users\shinrax2\AppData\Roaming\Python\Python311\site-packages\psutil_pswindows.py", line 696, in wrapper

return fun(self, *args, **kwargs)

^^^^^^^^^^^^^^^^^^^^^^^^^^

File "C:\Users\shinrax2\AppData\Roaming\Python\Python311\site-packages\psutil_pswindows.py", line 712, in wrapper

return fun(self, *args, **kwargs)

^^^^^^^^^^^^^^^^^^^^^^^^^^

File "C:\Users\shinrax2\AppData\Roaming\Python\Python311\site-packages\psutil_pswindows.py", line 800, in cmdline

ret = cext.proc_cmdline(self.pid, use_peb=False)

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

PermissionError: [WinError 5] Zugriff verweigert: '(originated from OpenProcess)'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):

File "C:\Users\shinrax2\Documents\GitHub\PS3GameUpdateDownloader\dist\PS3GameUpdateDownloaderDebug\updater.py", line 23, in 

utils.waitForMainAppExit()

File "C:\Users\shinrax2\Documents\GitHub\PS3GameUpdateDownloader\dist\PS3GameUpdateDownloaderDebug\utils.py", line 385, in waitForMainAppExit

if exename in p.name().lower() or exename in (' '.join(p.cmdline()).lower()):

^^^^^^^^^^^

File "C:\Users\shinrax2\AppData\Roaming\Python\Python311\site-packages\psutil_init_.py", line 705, in cmdline

return self._proc.cmdline()

^^^^^^^^^^^^^^^^^^^^

File "C:\Users\shinrax2\AppData\Roaming\Python\Python311\site-packages\psutil_pswindows.py", line 698, in wrapper

raise convert_oserror(err, pid=self.pid, name=self._name)

psutil.AccessDenied: (pid=148, name='Registry')

Traceback

import psutil
def waitForMainAppExit():
    exename = (getExecutableBasename()+getExecutableSuffix()).lower()
    print(f"looking for {exename}")
    pid = None
    sleep_interval = 0.05
    for p in psutil.process_iter(attrs=["pid", "name"]):
        if exename in p.name().lower() or exename in (' '.join(p.cmdline()).lower()):
            pid = p.pid()
            print(f"found {exename} with pid: {pid}")
    if pid is not None:
        print(f"waiting for {exename} with interval of {sleep_interval}s")
        while psutil.pid_exists(pid) == True:
            time.sleep(sleep_interval)

utils.waitForMainAppExit() (reproduction code)

Additionally i tried running the code as administrator but that didn't change anything.
If anymore info is required please @ me

[giampaolo]

AccessDenied is not a bug.