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[Music] if you create csvs with python then you probably often need to write headers with those csvs for instance if you need to use the csv with pandas or import it into sql once youve created it then headers are obviously the way to identify and how do you best create header if you start appending to your code within a for loop you dont want to have headers each time this is where im about to show you how to use if not header added which looks to see if youve already got a header and if you already have then dont write a new one so lets get going with some code okay so this is an example where im writing a header line here and then im writing the content which is an f string based upon these variables um the key point here is that were doing it with without using csv writer import csv and also were doing it within a for loop so if i just quickly run it and ill show you what the problem is so that you can all imagine what the problem is so if we just go and look at it we se
