<p>使用<code>re</code>模块和带有<code>object_hook=</code>参数(<a href="https://docs.python.org/3.5/library/json.html#json.load" rel="nofollow noreferrer">doc</a>)的<code>json.loads()</code>。此脚本将向每个<code>grp_farmerdts/*</code>键添加<code>hh_</code>前缀,其中不是:</p>
<pre><code>json_str = '''{
"farmerregistrd": "1",
"grp_farmerdts/region": "5",
"datacollid": "0923678275",
"_status": "submitted_via_web",
"enumtype": "2",
"deviceid": "352948096845916",
"start_time": "2019-04-03T10:57:23.620+03",
"_uuid": "f1069eae-33f8-4850-a549-49fcde27f077",
"grp_farmerdts/village": "2852",
"_submitted_by": null,
"formhub/uuid": "42cb3fc351a74fd89702078160f849ca",
"grp_farmerdts/hh_id": "623",
"grp_farmerdts/ward": "136",
"_userform_id": "adggeth_ADGG-ETH-REG02-20181008",
"_id": 711097,
"grp_farmerdts/district": "31"
}'''
import re
import json
def change_keys(d):
return {re.sub(r'grp_farmerdts/((?!hh_)(\w+))', r'grp_farmerdts/hh_\1', k): v for k, v in d.items()}
print(json.dumps(json.loads(json_str, object_hook=change_keys), indent=4))
</code></pre>
<p>印刷品:</p>
<pre><code>{
"farmerregistrd": "1",
"grp_farmerdts/hh_region": "5",
"datacollid": "0923678275",
"_status": "submitted_via_web",
"enumtype": "2",
"deviceid": "352948096845916",
"start_time": "2019-04-03T10:57:23.620+03",
"_uuid": "f1069eae-33f8-4850-a549-49fcde27f077",
"grp_farmerdts/hh_village": "2852",
"_submitted_by": null,
"formhub/uuid": "42cb3fc351a74fd89702078160f849ca",
"grp_farmerdts/hh_id": "623",
"grp_farmerdts/hh_ward": "136",
"_userform_id": "adggeth_ADGG-ETH-REG02-20181008",
"_id": 711097,
"grp_farmerdts/hh_district": "31"
}
</code></pre>