[ckan-dev] extension issues: ckanext-scheming

Fri Nov 4 19:58:53 UTC 2016

I think/hope this is how it should be--

When I try--  >>>  this is what I get--

import ckanext; print ckanext  >>>  <module 'ckanext' (built-in)>

from ckanext import scheming; print scheming  >>>
     <module 'ckanext.scheming' from 
'/usr/lib/ckan/default/lib/python2.7/site-packages/ckanext/scheming/__init__.pyc'>


On 10/28/16 6:17 PM, Ian Ward wrote:
> did you create a 'ckanext' package somewhere that wasn't declared as a
> namespace package? If you run these in a python interpreter with your
> virtualenv activated what do they print?
>
>>>> import ckanext; print ckanext
>>>> from ckanext import scheming; print scheming
> On Fri, Oct 28, 2016 at 7:58 PM, Thomas Heetderks - MSU
> <thomas.heetderks at montana.edu>  wrote:
>> Hi -
>>
>> We have CKAN 2.5.2 up and running on CentOS 6.8
>>
>> I have been trying to install ckanext-scheming
>> The pip install actually went fine...
>>
>> But when I tried to add scheming_datasets to the ckan.plugins setting in the
>> production.ini file-- I got this error:
>>
>> ImportError: No module named scheming.plugins
>>
>> The entire trace-back follows--
>>
>> Thanks in advance for any and all help!
>>
>> BTW: can anyone suggest the BEST way to extend the metadata schema?
>> (I have found two so far, this extension and IDatasetForm, which I also had
>> trouble with)
>> ...I get the feeling I am somehow making this extension stuff harder than it
>> should be :)
>>
>> - Thomas Heetderks
>>
>> ------------
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142] mod_wsgi
>> (pid=12165): Target WSGI script '/etc/ckan/default/apache.wsgi' cannot be
>> loaded as Python module.
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142] mod_wsgi
>> (pid=12165): Exception occurred processing WSGI script
>> '/etc/ckan/default/apache.wsgi'.
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142] Traceback (most
>> recent call last):
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]   File
>> "/etc/ckan/default/apache.wsgi", line 18, in <module>
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]     application =
>> loadapp('config:%s' % config_filepath)
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]   File
>> "/usr/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 247,
>> in loadapp
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]     return
>> loadobj(APP, uri, name=name, **kw)
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]   File
>> "/usr/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 272,
>> in loadobj
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]     return
>> context.create()
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]   File
>> "/usr/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 710,
>> in create
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]     return
>> self.object_type.invoke(self)
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]   File
>> "/usr/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 146,
>> in invoke
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]     return
>> fix_call(context.object, context.global_conf, **context.local_conf)
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]   File
>> "/usr/local/lib/python2.7/site-packages/paste/deploy/util.py", line 55, in
>> fix_call
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]     val =
>> callable(*args, **kw)
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]   File
>> "/usr/lib/ckan/default/src/ckan/ckan/config/middleware.py", line 58, in
>> make_app
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]
>> load_environment(conf, app_conf)
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]   File
>> "/usr/lib/ckan/default/src/ckan/ckan/config/environment.py", line 232, in
>> load_environment
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]
>> p.load_all(config)
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]   File
>> "/usr/lib/ckan/default/src/ckan/ckan/plugins/core.py", line 134, in load_all
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]     load(*plugins)
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]   File
>> "/usr/lib/ckan/default/src/ckan/ckan/plugins/core.py", line 148, in load
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]     service =
>> _get_service(plugin)
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]   File
>> "/usr/lib/ckan/default/src/ckan/ckan/plugins/core.py", line 254, in
>> _get_service
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]     return
>> plugin.load()(name=plugin_name)
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]   File
>> "/usr/lib/ckan/default/lib/python2.7/site-packages/pkg_resources/__init__.py",
>> line 2235, in load
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]     return
>> self.resolve()
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]   File
>> "/usr/lib/ckan/default/lib/python2.7/site-packages/pkg_resources/__init__.py",
>> line 2241, in resolve
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142]     module =
>> __import__(self.module_name, fromlist=['__name__'], level=0)
>> [Fri Oct 28 13:00:38 2016] [error] [client 52.57.242.142] ImportError: No
>> module named scheming.plugins
>>
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