Check if a process is running by name and find it’s Process ID in Python using psutil

Check if a process is running

import psutil
def checkIfProcessRunning(processName):
    '''
    Check if there is any running process that contains the given name processName.
    '''
    #Iterate over the all the running process
    for proc in psutil.process_iter():
        try:
            # Check if process name contains the given name string.
            if processName.lower() in proc.name().lower():
                return True
        except (psutil.NoSuchProcess, psutil.AccessDenied, psutil.ZombieProcess):
            pass
    return False;

# Check if any chrome process was running or not.
if checkIfProcessRunning('chrome'):
    print('Yes a chrome process was running')
else:
    print('No chrome process was running')

Find PID (Process ID) of a running process by Name

import psutil
def findProcessIdByName(processName):
    '''
    Get a list of all the PIDs of a all the running process whose name contains
    the given string processName
    '''
    listOfProcessObjects = []
    #Iterate over the all the running process
    for proc in psutil.process_iter():
       try:
           pinfo = proc.as_dict(attrs=['pid', 'name', 'create_time'])
           # Check if process name contains the given name string.
           if processName.lower() in pinfo['name'].lower() :
               listOfProcessObjects.append(pinfo)
       except (psutil.NoSuchProcess, psutil.AccessDenied , psutil.ZombieProcess) :
           pass
    return listOfProcessObjects;

# Find PIDs od all the running instances of process that contains 'chrome' in it's name
listOfProcessIds = findProcessIdByName('chrome')
if len(listOfProcessIds) > 0:
   print('Process Exists | PID and other details are')
   for elem in listOfProcessIds:
       processID = elem['pid']
       processName = elem['name']
       processCreationTime =  time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(elem['create_time']))
       print((processID ,processName,processCreationTime ))
else :
   print('No Running Process found with given text')

References
https://thispointer.com/python-check-if-a-process-is-running-by-name-and-find-its-process-id-pid/

Related