Python check if tab separated file is correct

check_tab_delimited.py

# It shows if tab seperated file has any error, and print line number
# filename = "tab_file.txt"
with open(filename) as f:
    i = 0
    for line in f:
        line = line.rstrip()
        i = i + 1
        if line:
            try:
                word, tag = line.split('\t')
            except ValueError as e:
                print("[Line %s] %s" % (i, line))