python3.7：(Pyttsx3)没有名为“pyttsx3”的模块

Question

我有一个用pyttsx3编写的程序(使用模块)，我以前在python3.7上运行，它过去运行得很好。

但是，当我尝试在Ubuntu20.04上运行它时，它不会运行。

我在我的Ubuntu20.04 PC上安装了python3.8.2和python3.7.7，使用python3.8.2解释器运行程序会产生以下错误：

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

另一方面，使用python3.7解释器运行它可以获得以下ModuleNotFoundError：

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

...but，当我使用命令pip3 list检查已安装的模块时，pyttsx3显示在版本为2.87的列表中

现在，我是无所适从的！...dunno该怎么办。

更新-1 (pipenv)

我尝试使用@ivan的答复中建议的以下命令使用pipenv运行它：

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

...but提供了以下错误，这些错误与我在使用python3.8.2解释器时得到的错误有些相似。

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

更新-2 (pipenv run python3.7 3.7.)

在摆弄pipenv时，我发现在pipenv中运行python3.7再次给出了ModuleNotFoundError，就像在python3.7中运行没有pipenv的程序一样(尽管，我已经在pipenv中安装了pyttsx3，如更新-1部分中提到的那样)。

因此，我想知道是否有可能在pipenv的python3.7中安装pyttsx3 (而不是python3中的pipenv)。

Answer 1

尝试在pipenv中运行您的项目：

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

它将给你一个清晰的环境，这样就可以在不受其他口译员影响的情况下更容易地解决轨道问题。

Answer 2

先到地点：

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

创建一个新文件hook-pyttsx3.py。

在此文件中，复制下面的代码。

#-----------------------------------------------------------------------------
# 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', ]

然后，在您的脚本中，使用以下内容：

import pyttsx3
from pyttsx3.drivers import sapi5

参考文献