If i do like that:
jQuery.ajax({
               type: "POST",
               url: "{{=URL('useCalc','sess')}}",
               data: {data: myStrJson},
               cache: false
           });
I have error in controller:

import json
        a = json.loads(request.vars.data)
        cgCount = len(*a.get('fac'))*

AttributeError('str' object has no attribute 'get')

*Variavles*
a : 'data={"fo":["очная","очная","очная"],"fac":["Мех...йство и 
водопользование"],"bud":["Да","Да","Да"]}'
json : <module 'json' from 'C:\\Python\\lib\\json\\__init__.py'>I think you 
take me good advice about js object, but now it is python string, not dict.

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