如何解决“没有可用的 package espeak”。 尝试在 AWS ec2 linux 上安装 speak 时出错？

Question

The same code is working on my local machine(Windows) but when running the same on AWS Linux after installing Pyttsx3, it is not working.

    import pyttsx3
    engine = pyttsx3.init() 
    engine.say("I will speak this text")
    engine.runAndWait()

this is the sample code. I am new to AWS and LINUX.

And this is the error:

Traceback (most recent call last):
  File "/home/ec2-user/st_env/env/lib64/python3.6/site-packages/pyttsx3/__init__.py", line 20, in init
    eng = _activeEngines[driverName]
  File "/usr/lib64/python3.6/weakref.py", line 137, in __getitem__
    o = self.data[key]()
KeyError: None

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/ec2-user/st_env/env/lib64/python3.6/site-packages/pyttsx3/__init__.py", line 22, in init
    eng = Engine(driverName, debug)
  File "/home/ec2-user/st_env/env/lib64/python3.6/site-packages/pyttsx3/engine.py", line 30, in __init__
    self.proxy = driver.DriverProxy(weakref.proxy(self), driverName, debug)
  File "/home/ec2-user/st_env/env/lib64/python3.6/site-packages/pyttsx3/driver.py", line 50, in __init__
    self._module = importlib.import_module(name)
  File "/usr/lib64/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 994, in _gcd_import
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/ec2-user/st_env/env/lib64/python3.6/site-packages/pyttsx3/drivers/espeak.py", line 9, in <module>
    from . import _espeak, toUtf8, fromUtf8
  File "/home/ec2-user/st_env/env/lib64/python3.6/site-packages/pyttsx3/drivers/_espeak.py", line 18, in <module>
    dll = cdll.LoadLibrary('libespeak.so.1')
  File "/usr/lib64/python3.6/ctypes/__init__.py", line 421, in LoadLibrary
    return self._dlltype(name)
  File "/usr/lib64/python3.6/ctypes/__init__.py", line 343, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: libespeak.so.1: cannot open shared object file: No such file or directory
    

EDIT: this OSError: libespeak.so.1: error is there because the espeak engine is not installed on the machine(as suggested by other Stackoverflow post), is there any way to install espeak than sudo yum install espeak?

Answer 1

I have tested the below commands on the amazon ec2 instance with host os Amazon Linux 2 and also tested your sample python code which runs successfully.

If your host system is Amazon Linux 2 then you can install espeak using the below commands:

   __|  __|_  )
   _|  (     /   Amazon Linux 2 AMI
  ___|\___|___|

[ec2-user@aws ~]$ rpm -E %{rhel}
7                                            --> as you can see here its based on RHEL 7

[ec2-user@aws ~]$ yum list espeak
Loaded plugins: extras_suggestions, langpacks, priorities, update-motd
Available Packages
espeak.i686                                                            1.47.11-4.amzn2.0.2                                                          amzn2-core
espeak.x86_64                                                          1.47.11-4.amzn2.0.2                                                          amzn2-core

Here you can see the espeak package is available on Amazon Linux. So you need to install it using the below command:

ec2-user@aws ~]$ sudo yum -y install espeak
Loaded plugins: extras_suggestions, langpacks, priorities, update-motd
Resolving Dependencies
--> Running transaction check
---> Package espeak.x86_64 0:1.47.11-4.amzn2.0.2 will be installed
--> Processing Dependency: libpulse.so.0(PULSE_0)(64bit) for package: espeak-1.47.11-4.amzn2.0.2.x86_64
--> Processing Dependency: libpulse.so.0()(64bit) for package: espeak-1.47.11-4.amzn2.0.2.x86_64
--> Running transaction check
---> Package pulseaudio-libs.x86_64 0:10.0-3.amzn2.0.3 will be installed
--> Processing Dependency: libsndfile.so.1(libsndfile.so.1.0)(64bit) for package: pulseaudio-libs-10.0-3.amzn2.0.3.x86_64
--> Processing Dependency: libxcb.so.1()(64bit) for package: pulseaudio-libs-10.0-3.amzn2.0.3.x86_64
--> Processing Dependency: libsndfile.so.1()(64bit) for package: pulseaudio-libs-10.0-3.amzn2.0.3.x86_64
--> Processing Dependency: libasyncns.so.0()(64bit) for package: pulseaudio-libs-10.0-3.amzn2.0.3.x86_64
--> Processing Dependency: libXtst.so.6()(64bit) for package: pulseaudio-libs-10.0-3.amzn2.0.3.x86_64
--> Processing Dependency: libX11.so.6()(64bit) for package: pulseaudio-libs-10.0-3.amzn2.0.3.x86_64
--> Processing Dependency: libX11-xcb.so.1()(64bit) for package: pulseaudio-libs-10.0-3.amzn2.0.3.x86_64
...

OR

yum localinstall http://mirror.centos.org/centos/7/os/x86_64/Packages/espeak-1.47.11-4.el7.x86_64.rpm

And it will install the package espeak .