吡喃无法导入_portaudio

Question

试图运行使用py音频的python应用程序。使用virtualenv和安装是可行的。但是，在运行时，它找不到端口音频。但是_portaudio.so文件存在。有什么建议吗？

(venv) kidkic@pi-mirror1:~/audio $ jasper/jasper.py 
Could not import the PyAudio C module '_portaudio'.
Traceback (most recent call last):
  File "jasper/jasper.py", line 31, in <module>
    from client.mic import Mic
  File "/home/kidkic/audio/jasper/client/mic.py", line 9, in <module>
    import pyaudio
  File "/home/kidkic/audio/venv/local/lib/python2.7/site-packages/pyaudio.py", line 116, in <module>
    import _portaudio as pa
ImportError: /home/kidkic/audio/venv/local/lib/python2.7/site-packages/_portaudio.so: undefined symbol: Pa_GetStreamReadAvailable


# CHECKING THAT THE FILE EXISTS (a binary file)
(venv) kidkic@pi-mirror1:~/audio $ ls venv/local/lib/python2.7/site-packages/_*
venv/local/lib/python2.7/site-packages/_portaudio.so

Answer 1

问题不在于它找不到库，而是库缺少了一个所需的函数。(源代码)。我遇到了同样的问题，并且相信这个问题源于使用错误版本的portaudio-dev构建。

你需要做的是：

1. 使用sudo apt-get purge --remove python-pyaudio卸载python-py音频(这是0.2.8版)
2. 下载 PortAudio的最新版本(19)。
3. 卸载和安装PortAudio
   • ./configure
   • make
   • make install

4. 获取py音频的依赖项
   • portaudio19-dev
   • python-all-dev (python3-all-dev for Python 3)

5. sudo pip install pyaudio

在那之后，我就能用吡喹酮了。

Answer 2

这对我来说很管用

conda install -c anaconda portaudio

Answer 3

对于linux用户来说，在安装portaudio之后，您可能会得到类似的结果。

Libraries have been installed in:
   /usr/local/lib

If you ever happen to want to link against installed libraries
in a given directory, LIBDIR, you must either use libtool, and
specify the full pathname of the library, or use the `-LLIBDIR'
flag during linking and do at least one of the following:
   - add LIBDIR to the `LD_LIBRARY_PATH' environment variable
     during execution
   - add LIBDIR to the `LD_RUN_PATH' environment variable
     during linking
   - use the `-Wl,-rpath -Wl,LIBDIR' linker flag
   - have your system administrator add LIBDIR to `/etc/ld.so.conf'

See any operating system documentation about shared libraries for
more information, such as the ld(1) and ld.so(8) manual pages.
----------------------------------------------------------------------


PortAudio was successfully installed.

On some systems (e.g. Linux) you should run 'ldconfig' now
to make the shared object available.  You may also need to
modify your LD_LIBRARY_PATH environment variable to include
the directory /usr/local/lib

因此，我想添加下面的命令作为步骤4，下面是Wehrdo在上述答案中的步骤。

• sudo ldconfig
• export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
• echo "export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/your/custom/path/" >> ~/.bashrc