import psutil, time
PROCNAME = "monitor.exe"

for proc in psutil.process_iter():
    if proc.name() == PROCNAME:
        print(proc.pid)
        softwarepid=proc.pid
        time.sleep(0.1)
        pi = psutil.Process(softwarepid)
        softwarepercent = pi.cpu_percent(interval=1.0)
        print(softwarepercent)

Error:
Traceback (most recent call last):
  File "C:\Users\xx\AppData\Local\Programs\Python\Python38-32\lib\site-packages\psutil\_common.py", line 449, in wrapper
    ret = self._cache[fun]
AttributeError: _cache

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\xx\AppData\Local\Programs\Python\Python38-32\lib\site-packages\psutil\_pswindows.py", line 679, in wrapper
    return fun(self, *args, **kwargs)
  File "C:\Users\xx\AppData\Local\Programs\Python\Python38-32\lib\site-packages\psutil\_common.py", line 452, in wrapper
    return fun(self)
  File "C:\Users\xx\AppData\Local\Programs\Python\Python38-32\lib\site-packages\psutil\_pswindows.py", line 766, in exe
    exe = cext.proc_exe(self.pid)
PermissionError: [WinError 24] The program issued a command but the command length is incorrect: '(originated from NtQuerySystemInformation)'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:/Users/xx/PycharmProjects/app/bee.py", line 29, in <module>
    if proc.name() == PROCNAME:
  File "C:\Users\xx\AppData\Local\Programs\Python\Python38-32\lib\site-packages\psutil\__init__.py", line 630, in name
    name = self._proc.name()
  File "C:\Users\xx\AppData\Local\Programs\Python\Python38-32\lib\site-packages\psutil\_pswindows.py", line 750, in name
    return os.path.basename(self.exe())
  File "C:\Users\xx\AppData\Local\Programs\Python\Python38-32\lib\site-packages\psutil\_pswindows.py", line 681, in wrapper
    raise convert_oserror(err, pid=self.pid, name=self._name)
psutil.AccessDenied: psutil.AccessDenied (pid=2928)