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import gtts
from playsound import playsound
tts=gtts.gTTS("ich möchte eine Pizza.",lang="de")
tts.save("test.mp3")
playsound("test.mp3")

playsound is relying on another python subprocess. Please use `pip install pygobject` if you want playsound to run more efficiently.
Traceback (most recent call last):
File "/home/pi/.local/lib/python3.7/site-packages/playsound.py", line 261, in <module>
playsound(argv[1])
File "/home/pi/.local/lib/python3.7/site-packages/playsound.py", line 163, in _playsoundNix
gi.require_version('Gst', '1.0')
File "/usr/lib/python3/dist-packages/gi/__init__.py", line 129, in require_version
raise ValueError('Namespace %s not available' % namespace)
ValueError: Namespace Gst not available
Traceback (most recent call last):
File "/media/pi/USB DISK/texttospeech.py", line 5, in <module>
playsound("test.mp3")
File "/home/pi/.local/lib/python3.7/site-packages/playsound.py", line 254, in <lambda>
playsound = lambda sound, block = True: _playsoundAnotherPython('/usr/bin/python3', sound, block, macOS = False)
File "/home/pi/.local/lib/python3.7/site-packages/playsound.py", line 229, in _playsoundAnotherPython
t.join()
File "/home/pi/.local/lib/python3.7/site-packages/playsound.py", line 218, in join
raise self.exc
File "/home/pi/.local/lib/python3.7/site-packages/playsound.py", line 211, in run
self.ret = self._target(*self._args, **self._kwargs)
File "/home/pi/.local/lib/python3.7/site-packages/playsound.py", line 226, in <lambda>
t = PropogatingThread(target = lambda: check_call([otherPython, playsoundPath, _handlePathOSX(sound) if macOS else sound]))
File "/usr/lib/python3.7/subprocess.py", line 347, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['/usr/bin/python3', '/home/pi/.local/lib/python3.7/site-packages/playsound.py', 'test.mp3']' returned non-zero exit status 1.
>>>

Heißt das eig ‚tts.save’ oder ,gtts.save‘?

tts=gtts.gTTS("ich möchte eine Pizza.",lang="de")

sudo apt-get install libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev libgstreamer-plugins-bad1.0-dev gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav gstreamer1.0-tools gstreamer1.0-x gstreamer1.0-alsa gstreamer1.0-gl gstreamer1.0-gtk3 gstreamer1.0-qt5 gstreamer1.0-pulseaudio