Detecting a change in a CSV row
I am trying to find a way to detect when string elements in csv file change values. When the value changes, I want the operation of the program to change. I want to read the value in the for loop one step ahead and compare it to the current value. Unfortunately my research has only turn up results that step the for loop ahead by one rather than simply reading the value. Any help would be appropriated. import csv with open("bleh.csv", "r") as bleh: blehFileReader = csv.reader(bleh, delimiter=',') next(blehFileReader, None) for row in blehFileReader: name = row nextname = next(blehFileReader) print(name) if name != nextname: print ("name has changed")
Instead of looking at the next name, look at the previous one: previous_name = None for row in blehFileReader: if row != previous_name: print ("name has changed") .... previous_name = row
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