how to rename json file using python

Question

I would like to save new created json file as a new one with an updated name, for example, the original file name is

update.json

what I want is

{newid_}+update.json
#example:123_update.json

with open("./update.json", "r") as jsonFile:
    data = json.load(jsonFile)

data["Id"] = "newid"

with open("./update.json", "w") as jsonFile:
    json.dump(data, jsonFile)

Many thanks

Answer 1

You can pass the value of the new ID in the file name using format string.

newId = 'Your ID here'
with open(f"./{newId}_update.json", "w") as jsonFile:
    json.dump(data, jsonFile)

Answer 2

Something like this should do the work:

data["Id"] = "newid"
newname = "./"+data["Id"]+"_update.json"

with open(newname, "w") as jsonFile:
    json.dump(data, jsonFile)

Answer 3

Right now you are saving the new file under update.json.json . In the open function, is where you can choose where to write your new file. So in your case, it could be something like

# Use a f-string to insert the new id into the file name
new_file_path = f"./{data['Id']}_update.json"
with open(new_file_path, "w") as jsonFile:
    json.dump(data, jsonFile)

Note that this will not delete the previous file. If you wish to overwrite the previous file, then you can do something like:

import os
file_path = "update.json"
new_file_path = f"./{data['Id']}_update.json"

# Overwrite the content of the old file
with open(file_path, "w") as jsonFile:
    json.dump(data, jsonFile)

# Rename it
os.rename(file_path, new_file_path)