main.py

import os
import re
import subprocess
import sys
import traceback

from PyQt5.QtCore import QObject, pyqtSlot
from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import QApplication, QMainWindow, QPushButton, QLabel, QVBoxLayout, QWidget, QLineEdit

try:
    from subprocess import DEVNULL
except ImportError:
    DEVNULL = os.open(os.devnull, os.O_RDWR)

p = re.compile(rb'(?:^|[\\&])PID_([A-Za-z0-9]+)(?:$|[\\&])')

DEFAULT_PID = '5002'


class App(QObject):
    def __init__(self, parent=None):
        super().__init__(parent)

        self.text_box: QLineEdit = None
        self.label: QLabel = None

    @pyqtSlot()
    def on_click(self):
        self.label.setText('CHECKING')
        self.label.setStyleSheet('color:blue;')
        app.processEvents()
        # print('Checking...')
        try:
            with open('err.txt', 'w', encoding='utf-8') as file:
                script = "Get-PnpDevice -PresentOnly | Select-Object -Property InstanceId"
                process = subprocess.Popen(f'powershell.exe -command "{script}"',
                                           # creationflags=subprocess.CREATE_NO_WINDOW,
                                           stdout=subprocess.PIPE,
                                           stdin=subprocess.DEVNULL,
                                           stderr=file,
                                           shell=True)
                out, err = process.communicate()
                data = out
        except BaseException:
            with open('log.txt', 'w', encoding='utf-8') as file:
                traceback.print_exc(file=file)
            label.setStyleSheet('color:black;')
            label.setText('SEE log.txt')
            traceback.print_exc()
            return
        lines: set[bytes] = {line.strip() for line in data.splitlines()}

        devices_pid = set()
        for line in lines:
            if not line.startswith(b'USB\\'):
                continue
            match = p.search(line)
            if match:
                devices_pid.add(match.group(1))

        print(f'There are {len(devices_pid)} devices')
        for pid in devices_pid:
            print(f'PID: {pid}')

        required_pid = (self.text_box.text() or str(DEFAULT_PID)).encode('utf-8')
        if required_pid in devices_pid:
            self.label.setStyleSheet('color:green;')
            self.label.setText('PASSED')
            print('PID Found!')
        else:
            self.label.setStyleSheet('color:red;')
            self.label.setText('FAIL')
            print('PID not Found!')


@pyqtSlot()
def on_return_press():
    button.clicked.emit()


if __name__ == '__main__':
    if sys.platform != 'win32':
        exit()

    app = QApplication(sys.argv)
    window = QMainWindow()
    window.setWindowTitle('Check USB by PID')

    my_app = App(window)

    text_box = QLineEdit(str(DEFAULT_PID))
    text_box.setFixedHeight(25)
    text_box.setPlaceholderText(f'PID (default {DEFAULT_PID})')

    button = QPushButton('CHECK')
    button.clicked.connect(my_app.on_click)

    text_box.returnPressed.connect(on_return_press)

    label = QLabel('PRESS CHECK')
    label.setStyleSheet('color: blue;')
    label.setAlignment(Qt.AlignHCenter)

    layout = QVBoxLayout()

    layout.addWidget(text_box)
    layout.addWidget(button)
    layout.addWidget(label)

    widget = QWidget()
    widget.setLayout(layout)

    window.setCentralWidget(widget)
    window.adjustSize()

    my_app.text_box = text_box
    my_app.label = label

    window.show()

    app.exec_()