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edit a file line by line interactively from user input in python

The way I would go about this is to load all the lines of the text file in a list, and then iterate through that list, changing the values of the list as you go along. Then at the very end (when you get to the last line or whenever you want), you will write that whole list out to the file with the same name, so that way it will overwrite the old file.

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