How to queue music by using the play command - python-3.x

Question

I'm working on a Discord music Bot and I'm now at the part that I want the bot to be able to add a song to the queue whenever someone commands it to play a song while it is already playing one.
(I don't want to have a seperate "queue" command, I want it to do it automatically)
So far this is my code (only the functions that matter):
async def play_queue(self, ctx: discord.ext.commands.context.Context):
audio = await self.get_audio(self.queue.pop(0))
vc = ctx.voice_client
if not self.is_playing(ctx):
vc.play(audio)
if len(self.queue) > 0:
await self.play_queue(ctx)
#commands.command(name="play", pass_ctx=True)
async def play(self, ctx: discord.ext.commands.context.Context, url=""):
await self.handle_connected(ctx)
self.queue.append(url)
# send a message to inform that a song has been queued or being played
await self.send_playing(ctx)
await self.play_queue(ctx)
I can Q 1 song at a time but can't queue multiple because it's stuck in the while loop

Answer 1

Done it by using the modules: threading, asyncio
This is the code segment that works:
async def idle_speaker(self, ctx: discord.ext.commands.context.Context):
while self.is_playing(ctx):
time.sleep(1)
await self.play_queue(ctx)
def wait_for_idle(self, ctx: discord.ext.commands.context.Context):
self.thread = True
loop = asyncio.new_event_loop()
asyncio.set_event_loop(loop)
loop.run_until_complete(self.idle_speaker(ctx))
loop.close()
self.thread = False
async def play_queue(self, ctx: discord.ext.commands.context.Context):
if not self.is_playing(ctx):
audio = await self.get_audio(self.queue.pop(0))
ctx.voice_client.play(audio)
if len(self.queue) > 0:
playing_t = threading.Thread(target=self.wait_for_idle, name="Song_Listener", args=[ctx])
playing_t.start()
#commands.command(name="play", pass_ctx=True)
async def play(self, ctx: discord.ext.commands.context.Context, url=""):
await self.handle_connected(ctx)
self.queue.append(url)
print(self.queue, self.is_playing(ctx))
# send a message to inform that a song has been queued or being played
await self.send_playing(ctx)
if not self.thread:
await self.play_queue(ctx)