无法在GAE灵活环境(Python)上安装PyAudio

Question

因此，我有相当多的问题，使这个烧瓶后端。除了一些识别从前端传送的音频的逻辑之外，它是相当标准的东西。为此，我合并了PyDejaVu。

其中一个依赖项(PyAudio)未正确生成。其他一切都可以正常进行了。

以下是一些日志：

Step #1:    #include "portaudio.h"
Step #1:                          ^
Step #1:   compilation terminated.
Step #1:   error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
Step #1:   Failed building wheel for PyAudio

和

Command "/env/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-arQ8b7/PyAudio/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-4yefCE-record/install-record.txt --single-version-externally-managed --compile --install-headers /env/include/site/python2.7/PyAudio" failed with error code 1 in /tmp/pip-build-arQ8b7/PyAudio/
Step #1: The command '/bin/sh -c pip install -r requirements.txt' returned a non-zero code: 1
Finished Step #1
ERROR
ERROR: build step 1 "gcr.io/cloud-builders/docker@sha256:0d9f13d75152530e2ee49bf3a3be3d6198b946f7315b3961994355a7aaee2925" failed: exit status 1
Step #1: 
------------

requirements.txt

PyAudio==0.2.9
PyDejaVu==0.1.3
werkzeug==0.14.1
flask-cors==2.1.2
flask-login==0.3.2
flask-oauthlib==0.9.2
flask-restful==0.3.5
flask-wtf==0.12
flask==0.12.2
flask-sqlalchemy==0.9
numpy==1.13.3
gunicorn==19.7.1

我遵循了这些错误，显然我必须通过apt-get安装port-audio，但这显然是不可能的。

如有任何帮助，我们不胜感激！

Answer 1

由于App Engine flex是基于docker的，因此您必须从Dockerfile安装依赖项。在这种情况下，您必须定制App Engine Python Dockerfile以添加PyAudio可能需要的所有库。您可以查看一些包含PyAudio Sample1 & Sample2的Dockerfiles文件。

我可以通过在Dockerfile中添加以下依赖项和库来检查错误：

RUN apt-get update && apt-get install -y \
        vim \
        curl \
        wget \
        git \
        make \
        netcat \
        python \
        python2.7-dev \
        g++ \
        bzip2 \
        binutils
###############################################################################
RUN apt-get install -y portaudio19-dev libopenblas-base libopenblas-dev pkg-config git-core cmake python-dev liblapack-dev libatlas-base-dev libblitz0-dev libboost-all-dev libhdf5-serial-dev libqt4-dev libsvm-dev libvlfeat-dev  python-nose python-setuptools python-imaging build-essential libmatio-dev python-sphinx python-matplotlib python-scipy
# additional dependencies
RUN apt-get install -y \
        libasound2 \
        libasound-dev \
        libssl-dev

RUN pip install pyaudio