如何编写非阻塞代码使用PyQT5上传到PyDrive的谷歌驱动器？

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QPushButton, QFileDialog
from PyQt5.QtCore import QThread, pyqtSignal
from pydrive.auth import GoogleAuth
from pydrive.drive import GoogleDrive

class UploadThread(QThread):
    finished = pyqtSignal(str)

    def __init__(self, file_path):
        super().__init__()
        self.file_path = file_path

    def run(self):
        gauth = GoogleAuth()
        gauth.LocalWebserverAuth()
        drive = GoogleDrive(gauth)

        file = drive.CreateFile()
        file.SetContentFile(self.file_path)
        file.Upload()

        self.finished.emit("File uploaded successfully!")

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.initUI()

    def initUI(self):
        self.setWindowTitle("Google Drive Uploader")
        self.setGeometry(100, 100, 300, 200)

        self.upload_btn = QPushButton("Upload File", self)
        self.upload_btn.setGeometry(100, 80, 100, 30)
        self.upload_btn.clicked.connect(self.uploadFile)

    def uploadFile(self):
        file_path, _ = QFileDialog.getOpenFileName(self, "Select File", "", "All Files (*)")
        if file_path:
            self.upload_btn.setEnabled(False)

            upload_thread = UploadThread(file_path)
            upload_thread.finished.connect(self.showUploadResult)
            upload_thread.start()

    def showUploadResult(self, result):
        self.upload_btn.setEnabled(True)
        print(result)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    sys.exit(app.exec_())