Getting process id in python

Getting ProcessId within Python code

Solution 2: You can use package: Install Usage: In order to get process id using process name refer the following snippet: Multiprocessing will maintain an itertools.counter object for each and every process, which is used to generate an _identity tuple for any child processes it spawns and the top-level process produces child process with single-value ids, and they spawn process with two-value ids, and so on.

Getting ProcessId within Python code

I am in Windows and Suppose I have a main python code that calls python interpreter in command line to execute another python script ,say test.py .

So test.py is executed as a new process.How can I find the processId for this porcess in Python ?

To be more specific , we have os.getpid() in os module. It returns the current process id.

If I have a main program that runs Python interpreter to run another script , how can I get the process Id for that executing script ?

If you used subprocess to spawn the shell, you can find the process ID in the pid property:

sp = subprocess.Popen(['python', 'script.py']) print('PID is ' + str(sp.pid)) 

If you used multiprocessing, use its pid property:

p = multiprocessing.Process() p.start() # Some time later . print('PID is ' + str(p.pid)) 

It all depends on how you’re launching the second process.

If you’re using os.system or similar, that call won’t report back anything useful about the child process’s pid. One option is to have your 2nd script communicate the result of os.getpid() back to the original process via stdin/stdout, or write it to a predetermined file location. Another alternative is to use the third-party psutil library to figure out which process it is.

On the other hand, if you’re using the subprocess module to launch the script, the resulting «popen» object has an attribute popen.pid which will give you the process id.

You will receive the process ID of the newly created process when you create it. At least, you will if you used fork() (Unix), posix_spawn(), CreateProcess() (Win32) or probably any other reasonable mechanism to create it.

If you invoke the «python» binary, the python PID will be the PID of this binary that you invoke. It’s not going to create another subprocess for itself (Unless your python code does that).

Another option is that the process you execute will set a console window title for himself. And the searching process will enumerate all windows, find the relevant window handle by name and use the handle to find PID. It works on windows using ctypes.

Python — How to get PID by process name?, Is there any way I can get the PID by process name in Python? PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 3110 meysam 20 0 971m 286m 63m S 14.0 7.9 14:24.50 chrome

How to get the process id from Python Multiprocess?

In this article, we will see how to get the process id from Python Multiprocess For this we should make use of method multiprocessing.current_process() to get the multiprocess id. Multiprocessing refers to the ability of a system to support more than one processor at the same time. Applications in a multiprocessing system are broken into smaller routines that run independently. The operating system allocates these threads to the processors improving the performance of the system.

Consider a computer system with a single processor. If it is assigned several processes at the same time, it will have to interrupt each task and switch briefly to another, to keep all the processes going.
This situation is just like a chef working in a kitchen alone. He has to do several tasks like baking, stirring, kneading dough, etc.

Python3

Multiprocessing will maintain an itertools.counter object for each and every process, which is used to generate an _identity tuple for any child processes it spawns and the top-level process produces child process with single-value ids, and they spawn process with two-value ids, and so on. Then, if no names are passed to the Process constructor, it simply autogenerates the name based on the _identity, using ‘:’.join(…). Then Pool alters the name of the process using replace, leaving the autogenerated id the same.

The auto-generated names are unique. It will return the process object itself, there is a possibility of the process being its own identity.

The upshot of all this is that although two Processes may have the same name, because you may assign the same name to them when you create them, they are unique if you don’t touch the name parameter. Also, you could theoretically use _identity as a unique identifier; but I gather they made that variable private for a reason!

Python3

Python — How to get the PID of a PyWin32 process, In order to get the process Id, I do the following: import win32process self.application = win32com.client.DispatchEx (‘Excel.Application’) t, p = win32process.GetWindowThreadProcessId (self.application.Hwnd) From these variables, p is the process id (the one that shows in task manager). Hope this …

How to get Process ID with name in python

I am trying to build a simple python script that does one thing right now: it finds the process id of a process given it’s PID. I have looked on here and found many different resources, but none that quite fit what I need. The most helpful is this one and I have used their example to try to make progress.

from subprocess import check_output def get_pid(name): return check_output(["pidof",name]) print(get_pid("fud")) 

I am using sudo top to view all my processes in a different terminal window. There is one process in particular named «fud» that I see on the screen and know that it is running. When I run the program for that process and any other process I get this:

 File "fort.py", line 6, in print(get_pid("fud")) File "fort.py", line 4, in get_pid return check_output(["pidof",name]) File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 566, in check_output process = Popen(stdout=PIPE, *popenargs, **kwargs) File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 710, in __init__ errread, errwrite) File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 1335, in _execute_child raise child_exception OSError: [Errno 2] No such file or directory 

I am not really sure what is going on here, and would like detailed guidance on an effective way to correct this mistake and do what I am trying to do. Thanks!

I have since found the solution. It is very simple:

print(commands.getoutput('pgrep FortniteClient-Mac-Shipping')) 

Hope someone can use this one day. Thanks.

You can use psutil package:

Usage: In order to get process id using process name refer the following snippet:

import psutil process_name = "fud" def get_pid(process_name): for proc in psutil.process_iter(): if proc.name() == process_name: return proc.pid 

Python — How to get process’s grandparent id, I don’t think you can do this in a portable Python fashion. But there are two possibilities. The information is available from the ps command so you could analyze that.; If you have a system with the proc file systems, you can open the file /proc//status and search for the line containing PPid:, then do the …

How do you get the process ID of a program in Unix or Linux using Python?

I’m writing some monitoring scripts in Python and I’m trying to find the cleanest way to get the process ID of any random running program given the name of that program

I could parse the output of that however I thought there might be a better way in python

From the standard library:

If you are not limiting yourself to the standard library, I like psutil for this.

For instance to find all «python» processes:

>>> import psutil >>> [p.info for p in psutil.process_iter(attrs=['pid', 'name']) if 'python' in p.info['name']] [, ] 

Try pgrep . Its output format is much simpler and therefore easier to parse.

Also: Python: How to get PID by process name?

Adaptation to previous posted answers.

def getpid(process_name): import os return [item.split()[1] for item in os.popen('tasklist').read().splitlines()[4:] if process_name in item.split()] getpid('cmd.exe') ['6560', '3244', '9024', '4828'] 

How to find pid of a process by Python?, If you just want the pid of the current script, then use os.getpid: import os pid = os.getpid () However, below is an example of using psutil to find the pids of python processes running a named python script. This could include the current process, but the main use case is for examining other processes, …

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How to Get the Process PID in Python

You can get the process pid via the multiprocessing.Process.pid attribute or via the os.getpid() and os.getppid() functions.

In this tutorial you will discover how to get the process pid in Python.

Need To Get a Process PID

A process is a running instance of a computer program.

Every Python program is executed in a Process, which is a new instance of the Python interpreter. This process has the name MainProcess and has one thread used to execute the program instructions called the MainThread. Both processes and threads are created and managed by the underlying operating system.

Sometimes we may need to create new child processes in our program in order to execute code concurrently.

Python provides the ability to create and manage new processes via the multiprocessing.Process class.

You can learn more about multiprocessing in the tutorial:

In multiprocessing, we may need to get the process identifier or PID of a process.

• We may need the pid of the current process.
• We may need the pid of a child process.
• We may need the pid of the parent process.

How can we get the pid of a process in Python?

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What is a PID

A process identifier is a unique number assigned to a process by the underlying operating system.

Each time a process is started, it is assigned a unique positive integer identifier and the identifier may be different each time the process is started.

The pid uniquely identifies one process among all active processes running on the system, managed by the operating system.

As such, the pid can be used to interact with a process, e.g. to send a signal to the process to interrupt or kill a process.

Confused by the multiprocessing module API?
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How to Get a Process PID

We can get the pid from the multiprocessing.Process instance or via os module functions such as os.getpid() and os.getppid().

Let’s take a closer look at each approach in turn.

PID via Process Instance

We can get the pid of a process via its multiprocessing.Process instance.

When we create a child process, we may hang on to the process instance.

Alternatively, we may get the process instance for the parent process via the multiprocessing.parent_process() function or for child process via the multiprocessing.active_children() function.

We may also get the process instance for the current process via the multiprocessing.current_process() function.

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