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I find myself frequently using Python's interpreter to work with databases, files, etc -- basically a lot of manual formatting of semi-structured data. I don't properly save and clean up the useful bits as often as I would like. Is there a way to save my input into the shell (db connections, variable assignments, little for loops and bits of logic) -- some history of the interactive session? If I use something like script I get too much stdout noise. I don't really need to pickle all the objects -- though if there is a solution that does that, it would be OK. Ideally, I would just be left with a script that ran as the one I created interactively, and I could just delete the bits I didn't need. Is there a package that does this, or a DIY approach?

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If you like to use the interactive session than IPython is extremely useful. There is a %save command for your use-case, you only need to input like as follows %save my_useful_session.

Another thing you can do is use the readline module below is a code example that shows the use of readline module:-

import readline

readline.write_history_file('/home/ahj/history')

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