re:dash Python datasource join example

query.py

# get existing queries results
users = get_query_result(132) # this one has {id, name}
events_by_users = get_query_result(131) # this one has {user_id, events count}

# actual merging. can be replaced with helper function and/or some Pandas code
events_dict = {}
for row in events_by_users['rows']:
  events_dict[row['user_id']] = row['count']

for row in users['rows']:
  row['events_count'] = events_dict.get(row['id'], 0)

# set the result to show
result = users
add_result_column(result, 'events_count', '', 'integer')

I have been trying to setup python data source but no luck.Can someone please tell how to setup a python data source? What to write in the query text area? where to store the python module(directory)?

Edit: I got this working! Just enable python data source,choose a name and add it to data sources(Assuming no modules imported).
Type this in the query field:
result = get_query_result(your_query_id)
new_result = whatever_changes_you_need_in_the_resultset
add_result_column(new_result, 'column_name', '', 'integer/string/etc')

would be possible to get data from pinkle files?

@WesleyBatista you need to put the name of the package in the data source configuration (modules to load) and make sure its in a python path (global or specific) that the python code in redash can actually find.

Then you can use "import mymodule". You also need to specifically name the modules you would like to load if these are python built-in module like json and datetime as the purpose of this is to make sure non authorized modules are not loaded and used.

@kausikram - were you able to get around the 'NoneType' object has no attribute 'annotate_query'?

I've hit the same issue and I'm not sure what to do.

Getting the same issue. Has anyone found any solution for this ?

@vmendiratta solved it by restarting the celery workers.
getredash/redash#1169