[Developers] Python query not working?

[Christopher R. Maden]

Chris Mahon wrote:
> Right ok, so do I still put the {} brackets before and after or do I 
> simple do this?
> 
> query = [...query here...]

Short answer is to do what you show: query = [...]

However, it’s important to note that the square brackets don’t 
*surround* the query; they are *part of* the query.

The important part in freebase-python is the call to mqlread().

If you are looking for a single object:

result = mss.mqlread( { constraints } )

If you are looking for multiple objects:

results = mss.mqlread( [ { constraints } ] )

E.g.:

sting = mss.mqlread( { "type" : "/music/artist",
                        "name" : "Sting",
                        "id" : None } )

smiths = mss.mqlread( [ { "type" : "/music/artist",
                           "name" : "Robert Smith",
                           "id" : None } ] )

[As a note, it is generally a bad idea to assume that a name-based query 
is going to have a single result, as the freebase-python sample, and my 
Sting example above, do.  If a Freebase user adds another instance of 
the same name, all your code will break.  Unless your query is 
ID-constrained, you are better off looking for multiple results all the 
time.]

~Chris
-- 
Christopher R. Maden
Data Architect
Freebase.com: <URL: http://www.freebase.com/ >
Metaweb Technologes, Inc. <URL: http://www.metaweb.com/ >