raw() sql bug in Python 2.5.2

[Kevin Renskers]

I am using the Model.objects.raw() function to write my own custom query. This works perfect on my local machine (Python 2.6.1) but it does not work on the server (Python 2.5.2).

Creating the raw query set works fine, but as soon as I want to iterate over it, I get this error:

__init__() keywords must be strings

Traceback:

Environment:

Request Method: GET
Request URL: http://biobench-acc.gw20e.com:8000/benchmark/
Django Version: 1.2.1 SVN-545
Python Version: 2.5.2
Installed Applications:
['django.contrib.sites',
 'django.contrib.auth',
 'django.contrib.admin',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.humanize',
 'django.contrib.gis',
 'django.contrib.messages',
 'cms',
 'cms.plugins.text',
 'cms.plugins.picture',
 'cms.plugins.link',
 'cms.plugins.file',
 'cms.plugins.googlemap',
 'cms.plugins.video',
 'cms.plugins.twitter',
 'cms.plugins.snippet',
 'mptt',
 'publisher',
 'menus',
 'reversion',
 'compressor',
 'django_extensions',
 'biobench',
 'analytics',
 'journal',
 'help',
 'account',
 'south',
 'GChartWrapper.charts',
 'devserver',
 'debug_toolbar']
Installed Middleware:
('django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'cms.middleware.multilingual.MultilingualURLMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'cms.middleware.page.CurrentPageMiddleware',
 'cms.middleware.user.CurrentUserMiddleware',
 'cms.middleware.toolbar.ToolbarMiddleware',
 'cms.middleware.media.PlaceholderMediaMiddleware',
 'biobench.middleware.CacheAccount',
 'debug_toolbar.middleware.DebugToolbarMiddleware')


Traceback:
File "packages/django/core/handlers/base.py" in get_response
  100.                     response = callback(request, *callback_args, **callback_kwargs)
File "packages/django/contrib/auth/decorators.py" in _wrapped_view
  25.                 return view_func(request, *args, **kwargs)
File "/opt/APPS/biobench/acc/Biobench/benchmark/views.py" in index
  48.     for result in results:
File "packages/django/db/models/query.py" in __iter__
  1,373.             yield self.transform_results(row)
File "packages/django/db/models/query.py" in transform_results
  1,462.         instance = model_cls(**model_init_kwargs)

Exception Type: TypeError at /benchmark/
Exception Value: __init__() keywords must be strings

And the variable model_init_kwargs holds at that moment this giant dictionary:

{'datetime': datetime.datetime(2008, 1, 1, 12, 0), u'digestate_digestate_volume_flow_measured': 0.0, u'digestate_digestate_volume_flow_measured_monthly_average': 0.0, u'digestate_digestate_volume_flow_measured_moving_average': 0.0, u'digestate_digestate_volume_flow_measured_weekly_average': 0.0, u'digestate_digestate_volume_flow_metered': 0.0, u'digestate_n_calculated': 5224.0646525267703, u'digestate_n_calculated_monthly_average': 5279.4801748385298, u'digestate_n_calculated_moving_average': 5224.0646525267703, u'digestate_n_calculated_weekly_average': 5221.38703388874, u'digestate_organic_dry_substance_calculated': 0.0, u'digestate_organic_dry_substance_calculated_monthly_average': 0.0, u'digestate_organic_dry_substance_calculated_moving_average': 0.0, u'digestate_organic_dry_substance_calculated_weekly_average': 0.0, u'digestate_phosphate_calculated': 60.630099999999999, u'digestate_phosphate_calculated_monthly_average': 55.562560854524499, u'digestate_phosphate_calculated_moving_average': 60.630099999999999, u'digestate_phosphate_calculated_weekly_average': 60.656231899037302, u'digester_biogas_volumetric_production_calculated': 3.7604754910504199, u'digester_biogas_volumetric_production_calculated_monthly_average': 3.3999011782886801, u'digester_biogas_volumetric_production_calculated_moving_average': 3.7604754910504199, u'digester_biogas_volumetric_production_calculated_weekly_average': 3.7617951104039, u'digester_residence_time_calculated': 34.099433949396399, u'digester_residence_time_calculated_monthly_average': 37.836838019052699, u'digester_residence_time_calculated_moving_average': 34.099433949396399, u'digester_residence_time_calculated_weekly_average': 34.068200938916704, u'digester_specific_biogas_production_calculated': 717.99370022062499, u'digester_specific_biogas_production_calculated_monthly_average': 714.25075433089398, u'digester_specific_biogas_production_calculated_moving_average': 717.99370022062499, u'digester_specific_biogas_production_calculated_weekly_average': 717.97007095378603, u'digester_specific_power_production_calculated': 7.6553196090158098, u'digester_specific_power_production_calculated_monthly_average': 7.4480614474277802, u'digester_specific_power_production_calculated_moving_average': 7.6553196090158098, u'digester_specific_power_production_calculated_weekly_average': 8.1261211308269807, u'digester_temperature_measured': 41.5, u'digester_temperature_measured_monthly_average': 41.052258064516103, u'digester_temperature_measured_moving_average': 41.5, u'digester_temperature_measured_weekly_average': 41.362000000000002, u'digester_volumetric_load_calculated': 5.2374770000000002, u'digester_volumetric_load_calculated_monthly_average': 4.75731470967742, u'digester_volumetric_load_calculated_moving_average': 5.2374770000000002, u'digester_volumetric_load_calculated_weekly_average': 5.2394841999999997, u'gas_analysis_biogas_volume_flow_calculated': 3760.4754910504198, u'gas_analysis_biogas_volume_flow_calculated_monthly_average': 3399.9011782886801, u'gas_analysis_biogas_volume_flow_calculated_moving_average': 3760.4754910504198, u'gas_analysis_biogas_volume_flow_calculated_weekly_average': 3761.7951104038998, u'gas_analysis_biogas_volume_flow_measured': 0.0, u'gas_analysis_biogas_volume_flow_measured_monthly_average': 2630.3277419354799, u'gas_analysis_biogas_volume_flow_measured_moving_average': 0.0, u'gas_analysis_biogas_volume_flow_measured_weekly_average': 2451.4879999999998, u'gas_analysis_biogas_volume_flow_metered': 3221.0, u'gas_analysis_ch4_calculated': 47.911955261542701, u'gas_analysis_ch4_calculated_monthly_average': 50.139126956355, u'gas_analysis_ch4_calculated_moving_average': 47.911955261542701, u'gas_analysis_ch4_calculated_weekly_average': 47.902063417719397, u'gas_analysis_ch4_measured': 50.0, u'gas_analysis_ch4_measured_monthly_average': 49.451612903225801, u'gas_analysis_ch4_measured_moving_average': 50.0, u'gas_analysis_ch4_measured_weekly_average': 49.200000000000003, u'gas_analysis_ch4_volume_flow_calculated': 2016.9503574, u'gas_analysis_ch4_volume_flow_calculated_monthly_average': 1824.8534909354801, u'gas_analysis_ch4_volume_flow_calculated_moving_average': 2016.9503574, u'gas_analysis_ch4_volume_flow_calculated_weekly_average': 2017.65803228, u'gas_analysis_ch4_volume_flow_measured': 0.0, u'gas_analysis_ch4_volume_flow_measured_monthly_average': 1299.6940387096799, u'gas_analysis_ch4_volume_flow_measured_moving_average': 0.0, u'gas_analysis_ch4_volume_flow_measured_weekly_average': 1201.22912, u'gas_analysis_co2_calculated': 52.088044738457299, u'gas_analysis_co2_calculated_monthly_average': 49.860873043645, u'gas_analysis_co2_calculated_moving_average': 52.088044738457299, u'gas_analysis_co2_calculated_weekly_average': 52.097936582280603, u'gas_analysis_co2_measured': 50.0, u'gas_analysis_co2_measured_monthly_average': 50.548387096774199, u'gas_analysis_co2_measured_moving_average': 50.0, u'gas_analysis_co2_measured_weekly_average': 50.799999999999997, u'gas_analysis_firing_thermal_capacity_calculated': 18715.282366314601, u'gas_analysis_firing_thermal_capacity_calculated_monthly_average': 16932.815542390399, u'gas_analysis_firing_thermal_capacity_calculated_moving_average': 18715.282366314601, u'gas_analysis_firing_thermal_capacity_calculated_weekly_average': 18721.848881526101, u'gas_analysis_firing_thermal_capacity_measured': 0.0, u'gas_analysis_firing_thermal_capacity_measured_monthly_average': 12059.860985187101, u'gas_analysis_firing_thermal_capacity_measured_moving_average': 0.0, u'gas_analysis_firing_thermal_capacity_measured_weekly_average': 11146.20500448, u'gas_analysis_h2s_measured': 220.0, u'gas_analysis_h2s_measured_monthly_average': 217.09677419354799, u'gas_analysis_h2s_measured_moving_average': 220.0, u'gas_analysis_h2s_measured_weekly_average': 222.40000000000001, u'gas_analysis_o2_measured': 0.59999999999999998, u'gas_analysis_o2_measured_monthly_average': 0.65806451612903205, u'gas_analysis_o2_measured_moving_average': 0.59999999999999998, u'gas_analysis_o2_measured_weekly_average': 0.54000000000000004, u'gas_analysis_power_calculated': 318.97165037565901, u'gas_analysis_power_calculated_monthly_average': 310.33589364282398, u'gas_analysis_power_calculated_moving_average': 318.97165037565901, u'gas_analysis_power_calculated_weekly_average': 338.58838045112498, u'gas_usage_added_pilot_energy_calculated': 0.0, u'gas_usage_added_pilot_energy_calculated_monthly_average': 1275.77406451613, u'gas_usage_added_pilot_energy_calculated_moving_average': 0.0, u'gas_usage_added_pilot_energy_calculated_weekly_average': 1144.4218000000001, u'gas_usage_efficiency_calculated': 40.904109589041099, u'gas_usage_efficiency_calculated_monthly_average': 40.904109589041099, u'gas_usage_efficiency_calculated_moving_average': 40.904109589041099, u'gas_usage_efficiency_calculated_weekly_average': 40.904109589041099, u'gas_usage_efficiency_measured': 0.0, u'gas_usage_efficiency_measured_monthly_average': 32.069806325895399, u'gas_usage_efficiency_measured_moving_average': 0.0, u'gas_usage_efficiency_measured_weekly_average': 26.673639691338799, u'gas_usage_green_gas_to_network_measured': 0.0, u'gas_usage_green_gas_to_network_measured_monthly_average': 0.0, u'gas_usage_green_gas_to_network_measured_moving_average': 0.0, u'gas_usage_green_gas_to_network_measured_weekly_average': 0.0, u'gas_usage_green_gas_to_network_metered': 0.0, u'gas_usage_heating_oil_measured': 0.0, u'gas_usage_heating_oil_measured_monthly_average': 128.64516129032299, u'gas_usage_heating_oil_measured_moving_average': 0.0, u'gas_usage_heating_oil_measured_weekly_average': 115.40000000000001, u'gas_usage_heating_oil_metered': 161.0, u'gas_usage_pilot_fuel_consumption_calculated': 0.0, u'gas_usage_pilot_fuel_consumption_calculated_monthly_average': 7.62158605509038, u'gas_usage_pilot_fuel_consumption_calculated_moving_average': 0.0, u'gas_usage_pilot_fuel_consumption_calculated_weekly_average': 6.1122970170795696, u'gas_usage_pilot_fuel_consumption_measured': 0.0, u'gas_usage_pilot_fuel_consumption_measured_monthly_average': 10.306701505443399, u'gas_usage_pilot_fuel_consumption_measured_moving_average': 0.0, u'gas_usage_pilot_fuel_consumption_measured_weekly_average': 8.2105632915091196, u'gas_usage_power_consumption_measured': 0.0, u'gas_usage_power_consumption_measured_monthly_average': 0.0, u'gas_usage_power_consumption_measured_moving_average': 0.0, u'gas_usage_power_consumption_measured_weekly_average': 0.0, u'gas_usage_power_consumption_metered': 0.0, u'gas_usage_power_production_calculated': 7655.3196090158099, u'gas_usage_power_production_calculated_monthly_average': 7448.06144742778, u'gas_usage_power_production_calculated_moving_average': 7655.3196090158099, u'gas_usage_power_production_calculated_weekly_average': 8126.1211308269903, u'gas_usage_power_production_measured': 0.0, u'gas_usage_power_production_measured_monthly_average': 5819.6129032258104, u'gas_usage_power_production_measured_moving_average': 0.0, u'gas_usage_power_production_measured_weekly_average': 5376.1999999999998, u'gas_usage_power_production_metered': 6034.0, u'gas_usage_rapeseed_methyl_ester_measured': 0.0, u'gas_usage_rapeseed_methyl_ester_measured_monthly_average': 0.0, u'gas_usage_rapeseed_methyl_ester_measured_moving_average': 0.0, u'gas_usage_rapeseed_methyl_ester_measured_weekly_average': 0.0, u'gas_usage_rapeseed_methyl_ester_metered': 0.0, u'gas_usage_rapeseed_oil_measured': 0.0, u'gas_usage_rapeseed_oil_measured_monthly_average': 0.0, u'gas_usage_rapeseed_oil_measured_moving_average': 0.0, u'gas_usage_rapeseed_oil_measured_weekly_average': 0.0, u'gas_usage_rapeseed_oil_metered': 0.0, 'id': 2L, 'plant_id': 6L, u'substrate_flow_dry_substance_calculated': 5616.6599999999999, u'substrate_flow_dry_substance_calculated_monthly_average': 5084.1077419354797, u'substrate_flow_dry_substance_calculated_moving_average': 5616.6599999999999, u'substrate_flow_dry_substance_calculated_weekly_average': 5618.3879999999999, u'substrate_flow_k2o_calculated': 85.179500000000004, u'substrate_flow_k2o_calculated_monthly_average': 79.527887871693494, u'substrate_flow_k2o_calculated_moving_average': 85.179500000000004, u'substrate_flow_k2o_calculated_weekly_average': 85.240453126233803, u'substrate_flow_n_calculated': 153.20092, u'substrate_flow_n_calculated_monthly_average': 141.11730950671301, u'substrate_flow_n_calculated_moving_average': 153.20092, u'substrate_flow_n_calculated_weekly_average': 153.263461225686, u'substrate_flow_organic_dry_substance_calculated': 5237.4769999999999, u'substrate_flow_organic_dry_substance_calculated_monthly_average': 4757.3147096774201, u'substrate_flow_organic_dry_substance_calculated_moving_average': 5237.4769999999999, u'substrate_flow_organic_dry_substance_calculated_weekly_average': 5239.4841999999999, u'substrate_flow_phosphate_calculated': 60.630099999999999, u'substrate_flow_phosphate_calculated_monthly_average': 55.562560854524499, u'substrate_flow_phosphate_calculated_moving_average': 60.630099999999999, u'substrate_flow_phosphate_calculated_weekly_average': 60.656231899037302, u'substrate_flow_substrate_volume_flow_measured': 29326.0, u'substrate_flow_substrate_volume_flow_measured_monthly_average': 26769.935483870999, u'substrate_flow_substrate_volume_flow_measured_moving_average': 29326.0, u'substrate_flow_substrate_volume_flow_measured_weekly_average': 29353.0}

Could it be the datetime field?

[Kevin Renskers]

This ticket can be closed, see ticket #13710 for fix.