What should I respond to jquery autocomplete request?

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Javascript

Python

jQuery

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Hello.
I want to make a simple python web-script via bottle web-framework that will use jQuery UI like here: jQuery UI autocomplete with remote datasource .

This is the server-side code (attempt 1):

@get('/search.php')
def autocomplete():
	#search by request.GET['term'], then:
	return ['aaa', 'bbb']

I saw response code 200 and nothing happened.

This is the server-side code (attempt 2 - JSON):

@get('/search.php')
def autocomplete():
	#search by request.GET['term'], then:
	return [
	{'id':'001', 'label':'green birg', 'value':'green bird'},
	{'id':'002', 'label':'blue birg',  'value':'blue bird'}
		]

I saw response code 500 - it didn't work too.

So what should I respond to jquery autocomplete request?