I am cycling through the rows of a csv file, but come across this error when looping through the rows: 'utf-8' codec can't decode byte 0xd5 in position 2912: invalid continuation byte

I'm just trying to get the row count for the file with this function:

def count_lines(filename):
    row_stored = ""
    try:
        with open(filename) as csvfile:
            data_reader = csv.reader(csvfile)
            next(data_reader)
            count = 0
            for index, row in enumerate(data_reader):
                if index == 1220119:
                    print(row)
                row_stored = row
                count  = 1
            return count
    except Exception as e:
        print(f'There was a problem with your request: {e}\n', row_stored)
        return False

The row above the erroring row looks like this:

['817949019495', 'QMMZN1300568', '4/28/2017', 'Digital Revenue', 'Track', 'Download Europe', 'GB', 'Amazon International - UK', '', '2', '1.2126506333579932', '109926407', '2/28/2017']

And the row that throws the error looks like this:

['817949019495', 'QMMZN1300568', '4/28/2017', 'Digital Revenue', 'Track', 'Download Europe', 'GB', 'Amazon International - UK', '', '2', '1.2126506333579932', '109926407', '2/28/2017']

I don't see any differences in the two. Is there something with the formatting of this particular row that I'm not seeing?

Note: This csv file is 3.17 GB. Don't know if that's a contributing factor

CodePudding user response：

Changing the encoding fixed this problem

with open(filename, encoding="ISO-8859-1") as csvfile: