fooooolders.py

import jsonstreams                                                          
                                                                            
with jsonstreams.Stream(jsonstreams.Type.object, filename='foo') as my_file:
    my_dict = {                                                             
        'Name': 'Pants',                                                    
        'Color': 'khaki',                                                   
    }                                                                       
    for k, v in my_dict.iteritems():                                        
        my_file.write(k, v)                                                 
    with my_file.subobject('Folders') as sub:                               
        sub_dict = {                                                        
            'Name': 'Pocket',                                               
            'Color': 'Invisible'                                            
        }                                                                   
        with sub.subobject(sub_dict['Name']) as sub_item:                   
            for k, v in sub_dict.iteritems():                               
                sub_item.write(k, v)                                        
            with sub_item.subobject('Folders') as subsub:                   
                subsub_dict = {                                             
                    'Name': 'Lint',                                         
                    'Color': 'Pants'                                        
                }                                                           
                with subsub.subobject(subsub_dict['Name']) as subsub_item:  
                    for k, v in subsub_dict.iteritems():                    
                        subsub_item.write(k, v)                             

{
    "Color": "khaki",
    "Name": "Pants",
    "Folders": {
        "Pocket": {
            "Color": "Invisible",
            "Name": "Pocket",
            "Folders": {
                "Lint": {
                    "Color": "Pants",
                    "Name": "Lint"
                }
            }
        }
    }
}