Parsing a Python JSON -

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i trying parse below json, , extract name , interval elements. 

reply "[ {   "interface" : [ {     "name" : "ethernet39",     "number" : 39,     "rate" : [ {       "interval" : 45,       "rx-bad-vlan-rate" : 0,       "rx-broadcast-packet-rate" : 0,       "rx-byte-rate" : 0,       "rx-drop-rate" : 0,       "rx-error-rate" : 0,       "rx-multicast-packet-rate" : 0,       "rx-unicast-packet-rate" : 0,       "timestamp" : "2015-06-18t21:59:23.703z",       "tx-broadcast-packet-rate" : 0,       "tx-byte-rate" : 0,       "tx-drop-rate" : 0,       "tx-error-rate" : 0,       "tx-multicast-packet-rate" : 0,       "tx-unicast-packet-rate" : 0     }, {       "interval" : 45,       "rx-bad-vlan-rate" : 0,       "rx-broadcast-packet-rate" : 0,       "rx-byte-rate" : 0,       "rx-drop-rate" : 0 ...

i've tried following:

  x in range(0,len(interfaces)):     interface in interfaces[x]:       entry = {}       entry['name'] = statistic['name']       interval in statistic['rate']:         entry['byte_rate'] = interval['rx-byte-rate']         entry['packet_rate'] = interval['rx-unicast-packet-rate']         entry['timestamp'] = interval['timestamp']         entry['droprate'] = interval['rx-drop-rate']         entry['errorrate'] = interval['rx-error-rate']     entries.append(entry)

however, error typeerror: string indices must integers

what doing incorrectly? in code, interfaces json acquired doing json.load()

isn't supposed interface instead of statistic ??

for x in range(0,len(interfaces)):     interface in interfaces[x]:       entry = {}       entry['name'] = interface['name']       interval in interface['rate']:         entry['byte_rate'] = interval['rx-b

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