Writing to JSON produces TypeError: dump() takes at least 2 arguments (1 given)

Question

I am trying to load in a json file. Update it and write it back. Here is my attempt at it but I am getting an error:

TypeError: dump() takes at least

Answer 1

You forgot to pass in the file object:

json.dump(employees, data_file)

Since you are using the file object as a context manager with the with statement, you do not need to manually close the file. And using just data_file.close is entirely redundant since you are not even calling the file.close() method.