Python pros, trying to teach myself python and I’ve got a problem where i have two files, input file and an output file. The input file contains 4 lines of characters (letters, spaces, etc) and i want to iterate through each character, and swap them for one another and then write the new set of lines to the out . Any tips? I know how to read/write the files, just can’t get the iterating and swapping characters part down

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numbers are naturally iterable, just += 1 in a “for [i] in [filename]:”
for letters, create a list with each letter as an item and do the same if statement, but go to the next item in list L[i+1]

The i + 1 convention always messes me up but i think that’s the way to go, I’ll look into that. thanks all

Depends on the data size. Assuming when you said 4 lines, it wasn’t an example. So, ingest the entire file and use Python operations using regex to substitute and write to another file

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