在 python 中使用 for 循环时，字符串索引必须是整数

Question

i have a list of dict as:

out:

[
    {
        "dest_host": "AA",
        "sysname": "",
        "mgmt_ip": "1.1.1.1",
        "platform": "switch",
        "remote_port": "E1/48",
        "local_port": "G0/2",
        "version": "",
        "interface_ip": ""
    },
    {
        "dest_host": "BB",
        "sysname": "",
        "mgmt_ip": "1.1.1.2",
        "platform": "switch",
        "remote_port": "E1/40",
        "local_port": "G0/1",
        "version": "",
        "interface_ip": ""
    }]

this is my for loop:

for i in out:
                  print('port:'+i['local_port'],'--->','nei_host:'+i['dest_host'],'--->','nei_port:'+i['remote_port'])

error -

    print('port:'+i['local_port'],'--->','nei_host:'+i['dest_host'],'--->','nei_port:'+i['remote_port'])
TypeError: string indices must be integers

what i would like to print:

port:G0/2 --> nei_host:AA ---> nei_port:E1/48
port:G0/1 --> nei_host:BB ---> nei_port:E1/40

Can some one help me to find the error in for loop. I am new to python. Thanks

Answer 1

cdpnei = ssh.send_command('show cdp neigh detail', use_textfsm=True)
out = json.dumps(cdpnei, indent = 4)

i was assuming out is dict, so i was running for loop against out

as @TimRoberts suggested, i ran for loop against cdpnei which is actual dictionary

for i in cdpnei:
                  print('port:'+i['local_port'],'--->','nei_host:'+i['dest_host'],'--->','nei_port:'+i['remote_port'])

that did a trick, worked as expected.

port:G0/2 --> nei_host:AA ---> nei_port:E1/48
port:G0/1 --> nei_host:BB ---> nei_port:E1/40