How to use if elif and else in python to perform an action to create a new json file each month, the first day of each month?

I am new to python and I need your help!

I have a python script that stores a row of data every minute for every day and every month of the year. However, since there is so much data stored per day, the json file ends up with 518,400 lines of data per year, with a size of 67 MB.

I need to make a script that performs an action to create a new json file every first day of every month of the year, therefore it will not accumulate all of the data for the year ; year in a single file, which will result in a json file for January, February, March … December.

The first idea I had was to use if elif and else in python, but I don't know how to do it.

Does anyone know how I can do this?

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