Python ImportError：在docker容器上使用mod_wsgi时，没有名为time的模块

我有一个flask应用程序，它通过apache/mod_wsgi提供服务，运行在AWS-EC2 Ubuntu 16.04服务器实例上的Docker容器上

我得到的错误是：

[Wed Mar 27 10:08:55.430668 2019] [mpm_event:notice] [pid 6:tid 139857176496000] AH00489: Apache/2.4.18 (Ubuntu) mod_wsgi/4.6.5 Python/2.7 configured -- resuming normal operations
[Wed Mar 27 10:08:55.430783 2019] [core:notice] [pid 6:tid 139857176496000] AH00094: Command line: 'apache2 (mod_wsgi-express) -f /tmp/mod_wsgi-localhost:9090:999/httpd.conf -D MOD_WSGI_MPM_ENABLE_EVENT_MODULE -D MOD_WSGI_MPM_EXISTS_EVENT_MODULE -D MOD_WSGI_MPM_EXISTS_WORKER_MODULE -D MOD_WSGI_MPM_EXISTS_PREFORK_MODULE -D FOREGROUND'
[Wed Mar 27 10:08:55.443834 2019] [wsgi:error] [pid 8:tid 139857176496000] mod_wsgi (pid=8): Failed to exec Python script file '/tmp/mod_wsgi-localhost:9090:999/handler.wsgi'.
[Wed Mar 27 10:08:55.443868 2019] [wsgi:error] [pid 8:tid 139857176496000] mod_wsgi (pid=8): Exception occurred processing WSGI script '/tmp/mod_wsgi-localhost:9090:999/handler.wsgi'.
[Wed Mar 27 10:08:55.443886 2019] [wsgi:error] [pid 8:tid 139857176496000] Traceback (most recent call last):
[Wed Mar 27 10:08:55.443901 2019] [wsgi:error] [pid 8:tid 139857176496000]   File "/tmp/mod_wsgi-localhost:9090:999/handler.wsgi", line 5, in <module>
[Wed Mar 27 10:08:55.443968 2019] [wsgi:error] [pid 8:tid 139857176496000]     import time
[Wed Mar 27 10:08:55.443985 2019] [wsgi:error] [pid 8:tid 139857176496000] ImportError: No module named time

这是我的apache配置设置：

WSGIScriptAlias /postProcess /home/niramai/application/postProcessing_flask.wsgi
WSGIScriptReloading On
WSGIDaemonProcess website processes=2 threads=15 display-name=%{GROUP} python-path=/home/niramai/application/

<Directory /home/niramai/application>
  Order allow,deny
  Allow from all
</Directory>

我已经尝试将python路径添加到WSGIDaemonProcess，尝试添加sys.path以包含python库

尝试通过使用“chmod u+s postProcessing_flask.wsgi”设置组的setgid（小写“s”）来更改对文件夹的权限

尝试在mod_wsgi-express start server命令中附加LD_LIBRARY_路径并专门设置PYTHONPATH，但均无效

---

我是这个领域的新手，非常感谢您的帮助。

第一步是尝试在Python之外重现同样的情况。你能在gunicorn下运行同样的脚本吗？它会产生同样的错误吗？（我觉得

sys.path

的显式设置不合适。）感谢您的评论，很抱歉回复太晚。多亏了Graham Dumpleton，我知道我丢失了一个包含时间模块的C扩展模块。我将Python2.7更新为Python3.6，解决了这个问题。你能在gunicorn下运行同样的脚本吗？它会产生同样的错误吗？（我觉得

sys.path

的显式设置不合适。）感谢您的评论，很抱歉回复太晚。多亏了Graham Dumpleton，我知道我丢失了一个包含时间模块的C扩展模块。我将Python2.7更新为Python3.6，解决了这个问题。

WSGIScriptAlias /postProcess /home/niramai/application/postProcessing_flask.wsgi
WSGIScriptReloading On
WSGIDaemonProcess website processes=2 threads=15 display-name=%{GROUP} python-path=/home/niramai/application/

<Directory /home/niramai/application>
  Order allow,deny
  Allow from all
</Directory>

ARG BASE_IMAGE=kitware/paraviewweb:pv-osmesa-v5.6.0 
FROM ${BASE_IMAGE}

ENV DEBIAN_FRONTEND=noninteractive
ENV LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/paraview/install/lib/:/usr/lib/python2.7

USER root
RUN apt-get update
RUN apt-get upgrade -y
RUN apt-get install -y \
    python2.7 \
    python-pip \
    python2.7-dev \
    lsof \
    apache2 \
    apache2-dev \
    vim \
    libapache2-mod-wsgi 

# pip install necesary python packages
RUN pip2 install \
            Flask \
            flask-restful \
            boto3 \
            requests \
            mod_wsgi \
        times


###################################################################################
# Start dumb_init as pid 1, to prevent any weird behaviour.
ADD https://github.com/Yelp/dumb-init/releases/download/v1.1.1/dumb-init_1.1.1_amd64 /usr/local/bin/dumb-init
RUN chmod +x /usr/local/bin/dumb-init

# Default user is root, which could cause issues in case of a breakout.
RUN groupadd -r niramai && useradd -m -r -g niramai niramai

COPY paraview-wsgi.conf /etc/apache2/conf-enabled/

RUN service apache2 restart

RUN mkdir -p /home/niramai/application

WORKDIR /home/niramai/application

RUN ln -fs /usr/lib/python2.7/plat-x86_64-linux-gnu/_sysconfigdata_nd.py /usr/lib/python2.7/

USER niramai

COPY --chown=niramai:niramai . .

EXPOSE 9090

CMD ["dumb-init", "mod_wsgi-express", "start-server", "postProcessing_flask.wsgi", "--port", "9090", "--socket-timeout", "600" ]