CODEWITHSUNDEEP
pythonjsondictionary
oorahduc
oorahduc

Reputation: 185

Adding json object to unnamed set of json objections

I have here a set of json objects.

[
  {
    "group": "GroupName1",
    "name": "Name1",
    "nick": "Nick1",
    "host": "Hostname1",
    "user": "user1",
    "sshport": "22",
    "httpport": "80"
  },
  {
    "group": "GroupName2",
    "name": "Name2",
    "nick": "Nick2",
    "host": "hostname2",
    "user": "user2",
    "sshport": "22",
    "httpport": "80"
  }

]

I have a CLI script taking raw_input and building a new dict object containing the new object parameters as such:

def main():
    # CLI Input
    group_in = raw_input("Group: ")
    name_in = raw_input("Name: ")
    nick_in = raw_input("Nick: ")
    host_in = raw_input("Host: ")
    user_in = raw_input("User: ")
    sshport_in = raw_input("SSH Port: ")
    httpport_in = raw_input("HTTP Port: ")

    # New server to add
    jdict = {
        "group": group_in,
        "name": name_in,
        "nick": nick_in,
        "host": host_in,
        "user": user_in,
        "sshport": sshport_in,
        "httpport": httpport_in
    }

Assuming json file containing the aforementioned json objects formatted as such is loaded as:

with open(JSON_PATH, mode='r') as rf:
    jf = json.load(rf)

I know how to do this by hacking the file using readlines/writelines, but how would I add jdict in at the end of jf pythonically so I can just write the file back with the complete new set of objects formatted in the same way?

Upvotes: 0

Views: 386

Answers (1)

Martijn Pieters
Martijn Pieters

Reputation: 1122562

jf is now just a Python list, so you can append the new dictionary to your list:

jf.append(jdict)

then write out the whole object back to your file, replacing the old JSON string:

with open(JSON_PATH, mode='w') as wf:
    json.dump(jf, wf)

Upvotes: 2

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