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$ run.py -d a.json -t
Yet Another Query Language - command-line query tool
Version 0.3.0
Copyright (c) 2013 Mirantis, Inc
$.customers.orders
Tokens: [LexToken(DOLLAR,'$',1,0), LexToken(LVL8_LEFT,'.',1,1), LexToken(STRING,'customers',1,2), LexToken(LVL8_LEFT,'.',1,11), LexToken(STRING,'orders',1,12)]
[
    [
        {
            "order_id": 1, 
            "item": "Guitar", 
            "quantity": 1
        }
    ], 
    [
        {
            "order_id": 2, 
            "item": "Banjo", 
            "quantity": 2
        }, 
        {
            "order_id": 3, 
            "item": "Piano", 
            "quantity": 1
        }
    ]
]
$.customers.orders.order_id
Tokens: [LexToken(DOLLAR,'$',1,0), LexToken(LVL8_LEFT,'.',1,1), LexToken(STRING,'customers',1,2), LexToken(LVL8_LEFT,'.',1,11), LexToken(STRING,'orders',1,12), LexToken(LVL8_LEFT,'.',1,18), LexToken(STRING,'order_id',1,19)]
Execution exception:
'list' object has no attribute 'order_id'