subprocess.Popen batch file wont delete on force terminate

I want to run a batch file using subprocess.Popen … then delete the batch file if I force exit (the red square STOP button in pycharm)

with open('test.bat', "w", encoding='utf-8') as a: a.write('pause')
try:
    SW_HIDE = 1
    info = subprocess.STARTUPINFO()
    info.dwFlags = subprocess.STARTF_USESHOWWINDOW
    info.wShowWindow = SW_HIDE
    p1 = subprocess.Popen('test.bat', startupinfo=info, creationflags=CREATE_NEW_CONSOLE)
    p1.wait()
except KeyboardInterrupt:
    os.remove('test.bat')
finally:
    os.remove('test.bat')

How should this be done? Im running threads so when I force close the program during testing … there are 5+ batch files sitting in my project directory. How can I delete them when exiting the program?

Edit

Here is my current final working solution

p1 = None
SW_HIDE = 1
info = subprocess.STARTUPINFO()
info.dwFlags = subprocess.STARTF_USESHOWWINDOW
info.wShowWindow = SW_HIDE
p1 = subprocess.Popen('test.bat', startupinfo=info, creationflags=CREATE_NEW_CONSOLE)
print(f"Subprocess started with PID: {p1.pid}")
try:
    while p1.poll() is None: time.sleep(0.5)
except KeyboardInterrupt:
    print('program ended')
    p1.terminate(); p1.wait()
    os.remove('test.txt')
    quit()

print('continue code')
os.remove('test.txt')

Here is the first rough draft

def cleanup():
    if p1:
        print("Terminating subprocess...")
        p1.terminate()
        p1.wait()
        print("Subprocess terminated.")
        os.remove('test.bat')

p1 = None
atexit.register(cleanup)
SW_HIDE = 1
info = subprocess.STARTUPINFO()
info.dwFlags = subprocess.STARTF_USESHOWWINDOW
info.wShowWindow = SW_HIDE
p1 = subprocess.Popen('test.bat', startupinfo=info, creationflags=CREATE_NEW_CONSOLE)
print(f"Subprocess started with PID: {p1.pid}")

try:
    while True:
        time.sleep(1)
        if p1.poll() is not None: break
except KeyboardInterrupt:
    print("Program interrupted by user.")
finally:
  print("Exiting program...")

and here is the original source code, from google AI

import atexit
import subprocess
import time
import os

process = None

def cleanup():
    global process
    if process:
        print("Terminating subprocess...")
        process.terminate()
        process.wait()
        print("Subprocess terminated.")

atexit.register(cleanup)

try:
    print("Starting subprocess...")
    process = subprocess.Popen(["sleep", "10"])
    print("Subprocess started.")
    time.sleep(5)
    print("Main process is done.")
except Exception as e:
    print(f"An error occurred: {e}")
finally:
    print("Exiting main process.")