Actually, it's the opposite case. When I get into the container and run the 
script directly with Python, the import succeeds.

On Tuesday, November 24, 2015 at 6:24:08 PM UTC-6, Graham Dumpleton wrote:
>
> Can you clarify that you are saying that when you get into the container 
> with mod_wsgi-docker-shell and run Python interpreter directly, or by 
> running a script manually, that the imports fail there as well.
>
> If yes, can you from the interpreter under that shell, show what sys.path 
> is for the interpreter, plus what path you find the cherrypy package 
> installed under in the system. Give a ‘ls -las’ of the parent and package 
> directory where cherrypy is installed.
>
> Thanks.
>
> Graham
>
> On 24 Nov 2015, at 3:52 AM, Collin Jackson <[email protected] 
> <javascript:>> wrote:
>
> Changing the working directory solved the issue with relative file 
> imports, so thank you for that input.
>
> Unfortunately, I am now running into the problem that I originally thought 
> I was having. My script is failing during import of cherrypy, even though I 
> have confirmed that it was installed both globally and in the virtual 
> environment in the docker container. When I run my wsgi script using python 
> (i.e. python script-name), I do not encounter the import issue. However, 
> I tried running the script using mod_wsgi-express start-server script-name 
> and 
> again ran into the import issue (in both cases, I followed your advice 
> above to get a shell inside the container). Additionally, I commented out 
> the line that imports cherrypy to see if it was a problem specific to 
> cherrypy, but I also have the same issue later in the script when I try to 
> import bson.
>
> In case it may be helpful, I have included the output and stacktrace for 
> the ImportError:
> $ docker run -it --rm wsgi
> Server URL         : http://localhost/
> Server Root        : /tmp/mod_wsgi-localhost:80:0
> Server Conf        : /tmp/mod_wsgi-localhost:80:0/httpd.conf
> Error Log File     : /dev/stderr (warn)
> Startup Log File   : /dev/stderr
> Request Capacity   : 5 (1 process * 5 threads)
> Request Timeout    : 60 (seconds)
> Queue Backlog      : 100 (connections)
> Queue Timeout      : 45 (seconds)
> Server Capacity    : 20 (event/worker), 20 (prefork)
> Server Backlog     : 500 (connections)
> Locale Setting     : en_US.UTF-8
> [Mon Nov 23 16:05:00.970167 2015] [mpm_event:notice] [pid 19:tid 
> 140041923430144] AH00489: Apache/2.4.17 (Unix) mod_wsgi/4.4.21 
> Python/2.7.10 configured -- resuming normal operations
> [Mon Nov 23 16:05:00.970530 2015] [core:notice] [pid 19:tid 
> 140041923430144] AH00094: Command line: 'httpd (mod_wsgi-express) -f 
> /tmp/mod_wsgi-localhost:80:0/httpd.conf -E /dev/stderr -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'
> [Mon Nov 23 16:05:01.039537 2015] [wsgi:error] [pid 21:tid 
> 140041923430144] mod_wsgi (pid=21): Target WSGI script 
> '/tmp/mod_wsgi-localhost:80:0/handler.wsgi' cannot be loaded as Python 
> module.
> [Mon Nov 23 16:05:01.039853 2015] [wsgi:error] [pid 21:tid 
> 140041923430144] mod_wsgi (pid=21): Exception occurred processing WSGI 
> script '/tmp/mod_wsgi-localhost:80:0/handler.wsgi'.
> [Mon Nov 23 16:05:01.040227 2015] [wsgi:error] [pid 21:tid 
> 140041923430144] Traceback (most recent call last):
> [Mon Nov 23 16:05:01.040487 2015] [wsgi:error] [pid 21:tid 
> 140041923430144]   File "/tmp/mod_wsgi-localhost:80:0/handler.wsgi", line 
> 94, in <module>
> [Mon Nov 23 16:05:01.040744 2015] [wsgi:error] [pid 21:tid 
> 140041923430144]     recorder_directory=recorder_directory)
> [Mon Nov 23 16:05:01.041024 2015] [wsgi:error] [pid 21:tid 
> 140041923430144]   File 
> "/usr/local/python/lib/python2.7/site-packages/mod_wsgi/server/__init__.py", 
> line 1267, in __init__
> [Mon Nov 23 16:05:01.042054 2015] [wsgi:error] [pid 21:tid 
> 140041923430144]     exec(code, self.module.__dict__)
> [Mon Nov 23 16:05:01.042338 2015] [wsgi:error] [pid 21:tid 
> 140041923430144]   File "/app/Middleware/c3stemserver.py", line 15, in 
> <module>
> [Mon Nov 23 16:05:01.042829 2015] [wsgi:error] [pid 21:tid 
> 140041923430144]     import cherrypy
> [Mon Nov 23 16:05:01.043083 2015] [wsgi:error] [pid 21:tid 
> 140041923430144] ImportError: No module named cherrypy
>
>
>
> On Friday, November 20, 2015 at 4:30:25 PM UTC-6, Graham Dumpleton wrote:
>>
>> If your application is in a sub directory, imports expect to work 
>> relative to that for modules, and even perhaps you expect that to be the 
>> current working directory so relative file access work, you will want to 
>> tell mod_wsgi what the home working directory should be.
>>
>> Thus try:
>>
>> CMD [ "--working-directory=Middleware", "Middleware/c3stemserver.py"]
>>
>> Make sure no strange quotes in that when doing a cut and paste.
>>
>> Graham
>>
>> On 21 Nov 2015, at 7:31 AM, Collin Jackson <[email protected]> wrote:
>>
>> The script file is in a sub-directory (called "Middleware"), so the 
>> Dockerfile CMD is CMD ["Middleware/c3stemserver.py"]. 
>>
>> The script does modify sys.path. This line is in the script before the 
>> import sys.path.append('/opt/C3STEM/Middleware/').
>>
>> On Friday, November 20, 2015 at 3:06:44 PM UTC-6, Graham Dumpleton wrote:
>>>
>>> Which directory is the wsgi script file in? The top level directory of 
>>> your project or a sub directory?
>>>
>>> What do you have for the CMD in your Dockerfile?
>>>
>>> Does your WSGI script file attempt to make modifications to sys.path in 
>>> any way?
>>>
>>> Graham
>>>
>>> On 21 Nov 2015, at 3:43 AM, Collin Jackson <[email protected]> wrote:
>>>
>>> I initially wrote a couple of replies to your comments, but I discovered 
>>> some additional important information, so I just deleted those and decided 
>>> to start over instead of cluttering the response chain.
>>>
>>> I'm new to the code base I'm working with and didn't realize that the 
>>> ImportError was being thrown for an include of a local file, not a package 
>>> (so sorry for the confusion). The file to be imported is in the same 
>>> directory as the wsgi script. Does the wsgi script get copied to another 
>>> directory before running?
>>>
>>> On Friday, November 20, 2015 at 4:31:24 AM UTC-6, Graham Dumpleton wrote:
>>>>
>>>> Sorry for separate messages and not adding to discussion. Don't mean to 
>>>> confuse you. Best I can do right now.
>>>>
>>>> If your Dockerfile has USER line in it try commenting it out.
>>>>
>>>> This is not a permanent solution but will help isolate whether is 
>>>> permissions issue on writing to application code directory
>>>>
>>>> Graham
>>>>
>>>> On 20 Nov 2015, at 2:34 PM, Collin Jackson <[email protected]> 
>>>> wrote:
>>>>
>>>> I'm running mod-wsgi-docker:python-2.7-onbuild and have listed my 
>>>> requirements in requirements.txt. During build, I can see that the 
>>>> packages 
>>>> are installed properly, but when I try to run the image, it crashes on the 
>>>> first non-Standard Library import with an ImportError exception. I can't 
>>>> figure out what's happening and it's not exactly easy to poke around 
>>>> inside 
>>>> the container to see what's going on. I noticed that a virtual environment 
>>>> is created prior to installing the packages (here 
>>>> <https://github.com/GrahamDumpleton/mod_wsgi-docker/blob/master/2.7/build.sh#L87>),
>>>>  
>>>> but I imagine that if this is the issue, other users would have the same 
>>>> issue. Any ideas?
>>>>
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>>>>
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