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I am just learning python and I am relativity new to it. I created the following script that will get the current active windows title and print it to the window.

import win32gui
windowTile = ""; 
while ( True ) :
    newWindowTile = win32gui.GetWindowText (win32gui.GetForegroundWindow());        
    if( newWindowTile != windowTile ) :
        windowTile = newWindowTile ; 
        print( windowTile ); 
The above code snippet works. I am now trying to get the application name for the active window (Foreground Window) 
My question is:
How do you get the foreground active windows application name in python?
For example: If a user switches from a Calculator (calc.exe) to Google Chrome (chrome.exe) I want to see what the application that they switched to is called. The problem with the title is that not all applications prefix the title with the application name. For example google chrome puts the page title as the window title. I want to know what the application that the user switched to is called. 
calc.exe
chrome.exe
                That's still not totally clear. Are you looking for the name contained in the VERSIONINFO resource of the executable file that owns the Window?
– David Heffernan
                Jan 18, 2013 at 11:49
                If you want to find the name of the executable file running, try using the psutil library. I have successfully listed through processes and got the executable names in this technique. The only problem is that it may be difficult to get the foreground process, or correspond the process with the header of the foreground window you found.
– trevorKirkby
                Jan 2, 2014 at 19:57
    """Get applicatin path given hwnd."""
        _, pid = win32process.GetWindowThreadProcessId(hwnd)
        for p in c.query('SELECT ExecutablePath FROM Win32_Process WHERE ProcessId = %s' % str(pid)):
            exe = p.ExecutablePath
            break
    except:
        return None
    else:
        return exe
def get_app_name(hwnd):
    """Get applicatin filename given hwnd."""
        _, pid = win32process.GetWindowThreadProcessId(hwnd)
        for p in c.query('SELECT Name FROM Win32_Process WHERE ProcessId = %s' % str(pid)):
            exe = p.Name
            break
    except:
        return None
    else:
        return exe
import psutil, win32process, win32gui, time
def active_window_process_name():
    pid = win32process.GetWindowThreadProcessId(win32gui.GetForegroundWindow()) #This produces a list of PIDs active window relates to
    print(psutil.Process(pid[-1]).name()) #pid[-1] is the most likely to survive last longer
time.sleep(3) #click on a window you like and wait 3 seconds 
active_window_process_name()
assuming you have installed psutil and win32 modules
Run this program to get a better understanding
import threading, win32gui, win32process, psutil
from tkinter import *
root = Tk()
s = StringVar()
def active_window_process_name():
        pid = win32process.GetWindowThreadProcessId(win32gui.GetForegroundWindow())
        return(psutil.Process(pid[-1]).name())
    except:
def to_label():
    global s
    while True:
        s.set(active_window_process_name())
    return
Label(root,textvariable=s).pack()
if __name__ == "__main__":
    t = threading.Thread(target = to_label)
    t.start()
    root.mainloop()
        
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