serial port gets locked if wrong password is used initailly

[Aaron-MJohn]

When I enter a wrong password then again create a device and connect, I get an error saying serial.serialutil.SerialException: could not open port 'COM3': PermissionError(13, 'Access is denied.', None, 5).

Step to replicate the issue.

#!/usr/bin/python3

from jnpr.junos import Device
from jnpr.junos.utils.config import Config

def connect_device(password,i=0):
    try:
        with Device(
            user="root",
            port="COM3",
            mode="serial",
            passwd=password,
            gather_facts=False,
            conn_open_timeout=1.5,
        ) as dev:
            cu = Config(dev)
    except Exception as err:
        print(f"failed with: {err}")
    finally:
        print(i)
        i += 1

i= 0
password_list = ["wrong password", "right password"]
while(i<2):
    password = password_list[i]
    connect_device(password,i)
    i+=1

Traceback:

Exception occurred: login:ConnectAuthError(host: None, msg: Bad username/password)

failed with: ConnectAuthError(host: None, msg: Bad username/password)
0
ERROR:  login:open_failed:None


Complete traceback message: Traceback (most recent call last):
  File "C:\Users\*\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\jnpr\junos\transport\tty_serial.py", line 44, in _tty_open
    self._ser.open()
  File "C:\Users\*\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\serial\serialwin32.py", line 64, in open       
    raise SerialException("could not open port {!r}: {!r}".format(self.portstr, ctypes.WinError()))
serial.serialutil.SerialException: could not open port 'COM3': PermissionError(13, 'Access is denied.', None, 5)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\*\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\jnpr\junos\console.py", line 207, in open      
    self._tty_login()
  File "C:\Users\*\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\jnpr\junos\console.py", line 316, in _tty_login    self._tty.login()
  File "C:\Users\*\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\jnpr\junos\transport\tty.py", line 115, in login
    self._tty_open()
  File "C:\Users\*AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\jnpr\junos\transport\tty_serial.py", line 46, in _tty_open
    raise RuntimeError("open_failed:{}".format(err.strerror))
RuntimeError: open_failed:None

failed with: open_failed:None
1