Python ile Mp3 player

import sys
from PyQt5.QtWidgets import QApplication, QWidget, QPushButton, QVBoxLayout, QFileDialog, QLabel, QSlider
from PyQt5.QtMultimedia import QMediaPlayer, QMediaContent
from PyQt5.QtCore import Qt, QUrl, QTimer

class MP3Player(QWidget):
    def __init__(self):
        super().__init__()

        self.initUI()

    def initUI(self):
        self.setWindowTitle('Klamhat - MP3 Player')
        self.setFixedSize(400, 300)

        self.mediaPlayer = QMediaPlayer(None, QMediaPlayer.StreamPlayback)
        self.mediaPlayer.positionChanged.connect(self.updatePosition)

        self.playButton = QPushButton('Play')
        self.playButton.setStyleSheet("background-color: #4CAF50; color: white;")
        self.playButton.clicked.connect(self.play)

        self.pauseButton = QPushButton('Pause')
        self.pauseButton.setStyleSheet("background-color: #f44336; color: white;")
        self.pauseButton.clicked.connect(self.pause)

        self.openButton = QPushButton('Open')
        self.openButton.setStyleSheet("background-color: #008CBA; color: white;")
        self.openButton.clicked.connect(self.openFile)

        self.volumeLabel = QLabel('Volume')
        self.volumeLabel.setAlignment(Qt.AlignCenter)
        self.volumeLabel.setStyleSheet("font-size: 14px;")

        self.volumeSlider = QSlider(Qt.Horizontal)
        self.volumeSlider.setRange(0, 100)
        self.volumeSlider.setValue(50)
        self.volumeSlider.sliderMoved.connect(self.setVolume)

        self.timeLabel = QLabel('00:00 / 00:00')
        self.fileLabel = QLabel('No File Selected')

        self.positionSlider = QSlider(Qt.Horizontal)
        self.positionSlider.setRange(0, 0)
        self.positionSlider.sliderMoved.connect(self.setPosition)

        vbox = QVBoxLayout()
        vbox.addWidget(self.fileLabel)
        vbox.addWidget(self.playButton)
        vbox.addWidget(self.pauseButton)
        vbox.addWidget(self.openButton)
        vbox.addWidget(self.volumeLabel)
        vbox.addWidget(self.volumeSlider)
        vbox.addWidget(self.timeLabel)
        vbox.addWidget(self.positionSlider)

        self.setLayout(vbox)

        self.timer = QTimer(self)
        self.timer.timeout.connect(self.updatePosition)

    def play(self):
        if self.mediaPlayer.state() == QMediaPlayer.PlayingState:
            self.mediaPlayer.setPosition(0)
        else:
            self.mediaPlayer.play()
            self.timer.start(1000)

    def pause(self):
        self.mediaPlayer.pause()
        self.timer.stop()

    def openFile(self):
        fileName, _ = QFileDialog.getOpenFileName(self, "Open MP3 File", "", "MP3 Files (*.mp3)")

        if fileName != '':
            self.mediaPlayer.setMedia(QMediaContent(QUrl.fromLocalFile(fileName)))
            self.play()
            self.fileLabel.setText(fileName.split("/")[-1])

    def setPosition(self, position):
        self.mediaPlayer.setPosition(position)

    def updatePosition(self):
        position = self.mediaPlayer.position()
        duration = self.mediaPlayer.duration()

        self.positionSlider.blockSignals(True)
        self.positionSlider.setValue(position)
        self.positionSlider.setRange(0, duration)
        self.positionSlider.blockSignals(False)

        position_str = self.formatTime(position)
        duration_str = self.formatTime(duration)

        self.timeLabel.setText(f'{position_str} / {duration_str}')

    def formatTime(self, millis):
        seconds = millis // 1000
        minutes = seconds // 60
        seconds %= 60
        return '{:02}:{:02}'.format(minutes, seconds)

    def setVolume(self, volume):
        self.mediaPlayer.setVolume(volume)

if __name__ == '__main__':
    app = QApplication(sys.argv)
    mp3player = MP3Player()
    mp3player.show()
    sys.exit(app.exec_())