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Martin Medro
Asked: 2020-05-13 05:48:05 +0800 CST

python3.7: (Pyttsx3) No module named 'pyttsx3'

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I had a program (using module pyttsx3) written in Windows which I used to run on python3.7, and it used to run well.
But,when I try to run it on Ubuntu 20.04, it doesn't run.
I have both python3.8.2 and python3.7.7 installed on my Ubuntu 20.04 PC, running the program with python3.8.2 interpreter gives the following errors:

Traceback (most recent call last):
  File "/usr/local/lib/python3.8/dist-packages/pyttsx3/__init__.py", line 20, in init
    eng = _activeEngines[driverName]
  File "/usr/lib/python3.8/weakref.py", line 131, in __getitem__
    o = self.data[key]()
KeyError: None

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/aakash/ax-net/home/a/ax-thrusters/axon/proice.py", line 19, in <module>
    core("I am ready", "a", "b")
  File "/home/aakash/ax-net/home/a/ax-thrusters/axon/proice.py", line 17, in core
    voice.core(x, id)
  File "/home/aakash/ax-net/home/a/ax-thrusters/axon/voice.py", line 15, in core
    engine = pyttsx3.init()
  File "/usr/local/lib/python3.8/dist-packages/pyttsx3/__init__.py", line 22, in init
    eng = Engine(driverName, debug)
  File "/usr/local/lib/python3.8/dist-packages/pyttsx3/engine.py", line 30, in __init__
    self.proxy = driver.DriverProxy(weakref.proxy(self), driverName, debug)
  File "/usr/local/lib/python3.8/dist-packages/pyttsx3/driver.py", line 50, in __init__
    self._module = importlib.import_module(name)
  File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 783, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/usr/local/lib/python3.8/dist-packages/pyttsx3/drivers/espeak.py", line 9, in <module>
    from . import _espeak, toUtf8, fromUtf8
  File "/usr/local/lib/python3.8/dist-packages/pyttsx3/drivers/_espeak.py", line 18, in <module>
    dll = cdll.LoadLibrary('libespeak.so.1')
  File "/usr/lib/python3.8/ctypes/__init__.py", line 451, in LoadLibrary
    return self._dlltype(name)
  File "/usr/lib/python3.8/ctypes/__init__.py", line 373, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: libespeak.so.1: cannot open shared object file: No such file or directory

On the other hand, running it with python3.7 interpreter gives the following ModuleNotFoundError:

.
.
.
import pyttsx3
ModuleNotFoundError: No module named 'pyttsx3'

...but, when I check the installed modules using the command pip3 list, pyttsx3 shows up in the list with version: 2.87

Now, I am clueless!...dunno what to do.

UPDATE-1 (pipenv)

I tried running it with pipenv using the following commands as suggested in the answer by @ivan-borshchov :

pipenv --three
pipenv install pyttsx3
pipenv run python3 MyPythonFile.py

...but this gives the following errors which are somewhat similar to the errors I get when using python3.8.2 interpreter.

Traceback (most recent call last):
  File "/home/aakash/.local/share/virtualenvs/axon-aTooHeXl/lib/python3.8/site-packages/pyttsx3/__init__.py", line 20, in init
    eng = _activeEngines[driverName]
  File "/usr/lib/python3.8/weakref.py", line 131, in __getitem__
    o = self.data[key]()
KeyError: None

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "axon.py", line 6, in <module>
    import proice
  File "/home/aakash/ax-net/home/a/ax-thrusters/axon/proice.py", line 19, in <module>
    core("I am ready", "a", "b")
  File "/home/aakash/ax-net/home/a/ax-thrusters/axon/proice.py", line 17, in core
    voice.core(x, id)
  File "/home/aakash/ax-net/home/a/ax-thrusters/axon/voice.py", line 15, in core
    engine = pyttsx3.init()
  File "/home/aakash/.local/share/virtualenvs/axon-aTooHeXl/lib/python3.8/site-packages/pyttsx3/__init__.py", line 22, in init
    eng = Engine(driverName, debug)
  File "/home/aakash/.local/share/virtualenvs/axon-aTooHeXl/lib/python3.8/site-packages/pyttsx3/engine.py", line 30, in __init__
    self.proxy = driver.DriverProxy(weakref.proxy(self), driverName, debug)
  File "/home/aakash/.local/share/virtualenvs/axon-aTooHeXl/lib/python3.8/site-packages/pyttsx3/driver.py", line 50, in __init__
    self._module = importlib.import_module(name)
  File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "/home/aakash/.local/share/virtualenvs/axon-aTooHeXl/lib/python3.8/site-packages/pyttsx3/drivers/espeak.py", line 9, in <module>
    from . import _espeak, toUtf8, fromUtf8
  File "/home/aakash/.local/share/virtualenvs/axon-aTooHeXl/lib/python3.8/site-packages/pyttsx3/drivers/_espeak.py", line 18, in <module>
    dll = cdll.LoadLibrary('libespeak.so.1')
  File "/usr/lib/python3.8/ctypes/__init__.py", line 451, in LoadLibrary
    return self._dlltype(name)
  File "/usr/lib/python3.8/ctypes/__init__.py", line 373, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: libespeak.so.1: cannot open shared object file: No such file or directory

UPDATE-2 (pipenv run python3.7 ...)

Okay while fiddling with pipenv, I found that running python3.7 in pipenv is again giving the ModuleNotFoundError, the same as I get when running my program in python3.7 without pipenv (Even though, I have installed pyttsx3 in pipenv as mentioned in UPDATE-1 section).

So, then I am curious whether it is possible to install pyttsx3 in python3.7 in pipenv(rather than in python3, in pipenv).

python python3 pipenv

2 Answers

  1. Try run your project in pipenv:

    pipenv --three
pipenv install pyttsx3 
pipenv run python3 yourfile.py

    It will give you a clear environment so will allow track issue easier without the influences of another interpreters

    • 1

  2. First go to the location:

    C:\Users\username\AppData\Local\Programs\Python\Python38-32\Lib\site-packages\PyInstaller\hooks

    Create a new file hook-pyttsx3.py.

    Inside this file, copy the code below.

    #-----------------------------------------------------------------------------
# Copyright (c) 2013-2020, PyInstaller Development Team.
#
# Distributed under the terms of the GNU General Public License (version 2
# or later) with exception for distributing the bootloader.
#
# The full license is in the file COPYING.txt, distributed with this software.
#
# SPDX-License-Identifier: (GPL-2.0-or-later WITH Bootloader-exception)
#-----------------------------------------------------------------------------


""" pyttsx3 imports drivers module based on specific platform. Fount at https://github.com/nateshmbhat/pyttsx3/issues/6 """

hiddenimports = [
    'pyttsx3.drivers',
    'pyttsx3.drivers.dummy',
    'pyttsx3.drivers.espeak',
    'pyttsx3.drivers.nsss',
    'pyttsx3.drivers.sapi5', ]

    Then, in your script, use this:

    import pyttsx3
from pyttsx3.drivers import sapi5

    reference

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