Name of files opened by a process in window?

Question

How to print name of file open by some process (PID) in window? Or All Processes (PID) currently open a file.
Process Explorer is a utility works fo

Answer 1

Here is the platform independent solution in python.

   import psutil
   p = psutil.Process(os.getpid()) # or PID of process
   p.open_files()

So i refer you psutil package it has too good functions for getting information on running processes

Answer 2

Here's a way to get a filename from pid using the Win32 API:

import win32api, win32con, win32process

handle = win32api.OpenProcess(win32con.PROCESS_ALL_ACCESS, False, pid) #get handle for the pid
filename = win32process.GetModuleFileNameEx(handle, 0) #get exe path & filename for handle

This works on windows only (obviously).