Reset csv.reader

[nilamo]

You're reading a file, so using seek() can let you choose where in the file you are: https://docs.python.org/3/library/io.htm...OBase.seek

import csv

blue = 0

with open("my-file.csv") as f:
    reader = csv.reader(f)
    # skip headers
    next(reader)
    for row in reader:
        if "blue" in row:
            blue += 1

            if blue > 5:
                f.seek(0)
                # skip headers again
                next(reader)

        if blue > 50:
            break
        print(row)
print(f"blue={blue}")

Output:
['1', 'red']
['2', 'red']
['3', 'blue']
['4', 'red']
['5', 'blue']
['6', 'blue']
['7', 'red']
['8', 'blue']
['9', 'blue']
['10', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
['3', 'blue']
['1', 'red']
['2', 'red']
blue=51