如何在另一个方法仍在运行时调用一个方法-Python

我正在开发一个 python 程序，它从给定的 YouTube 视频 url 中提取声音并播放它。我创建了play_vid一种播放声音的pause_vid方法和一种暂停声音的方法。问题是，虽然声音仍在play_vid方法内部播放并且我尝试调用该pause_vid方法，但该调用被忽略并且该play_vid方法继续运行。例子：

vid = Video("youtubelink")
vid.play_vid()
time.sleep(5)
# The sound keeps playing/this method call is being ignored
vid.pause_vid()

调用play_vid方法时如何终止该方法pause_vid？我已经研究了一段时间，但无法找到解决此问题的方法。完整程序：

from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.by import By
import time, os, vlc, requests
from mutagen.mp3 import MP3


class InvalidUrl(Exception):
    def __init__(self, message="Invalid video url!"):
        super().__init__(message)


class Video:
    def __init__(self, url):
        self.url = url
        self.paused = False
        self.player = ""
        self.is_valid()
        self.time_sleep = 0

    def play_vid(self):
        driver = webdriver.Chrome("C:\chromedriver.exe")
        driver.get("https://ytmp3.cc/en14/")
        element = driver.find_element_by_id("input")
        element.send_keys(self.url)
        button = driver.find_element_by_id("submit")
        button.click()
        wait = WebDriverWait(driver, 10)
        button2 = wait.until(EC.visibility_of_element_located((By.XPATH, '//*[@id="buttons"]/a[1]')))
        button2.click()
        vid_name = driver.find_element_by_xpath('//*[@id="title"]').text
        vid_name = vid_name.replace("| ", "")
        file_name = os.path.expanduser(r"~\Downloads\{}.mp3".format(vid_name))

        while not os.path.exists(file_name):
            time.sleep(1)

        driver.close()
        self.player = vlc.MediaPlayer()
        media = vlc.Media(file_name)
        self.player.set_media(media)
        self.player.play()
        audio = MP3(file_name)
        audio_info = audio.info
        length_in_secs = int(audio_info.length)

        while self.time_sleep != length_in_secs:
            if self.paused is True:
                return

            time.sleep(1)
            self.time_sleep += 1

    def pause_vid(self):
        self.paused = True

    def is_valid(self):
        r = requests.get(self.url)

        if "Video unavailable" in r.text:
            raise InvalidUrl

非常感谢标记M让我知道，我忘了补充self.player.set_pause(1)的pause_vid方法。他还建议我删除 while 循环，因此我time.sleep在主程序中使用它来决定视频将播放多长时间而不是 while 循环。更新代码：

from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.by import By
import time, os, vlc, requests
from mutagen.mp3 import MP3


class InvalidUrl(Exception):
    def __init__(self, message="Invalid video url!"):
        super().__init__(message)


class Video:
    def __init__(self, url):
        self.url = url
        self.paused = False
        self.player = ""
        self.is_valid()
        self.time_sleep = 0

    def play_vid(self):
        driver = webdriver.Chrome("C:\chromedriver.exe")
        driver.get("https://ytmp3.cc/en14/")
        element = driver.find_element_by_id("input")
        element.send_keys(self.url)
        button = driver.find_element_by_id("submit")
        button.click()
        wait = WebDriverWait(driver, 10)
        button2 = wait.until(EC.visibility_of_element_located((By.XPATH, '//*[@id="buttons"]/a[1]')))
        button2.click()
        vid_name = driver.find_element_by_xpath('//*[@id="title"]').text
        vid_name = vid_name.replace("| ", "")
        file_name = os.path.expanduser(r"~\Downloads\{}.mp3".format(vid_name))

        while not os.path.exists(file_name):
            time.sleep(1)

        driver.close()
        self.player = vlc.MediaPlayer()
        media = vlc.Media(file_name)
        self.player.set_media(media)
        self.player.play()

    def pause_vid(self):
        self.player.set_pause(1)

    def is_valid(self):
        r = requests.get(self.url)

        if "Video unavailable" in r.text:
            raise InvalidUrl