non-ASCII detector

#!/usr/bin/python3
#script to detect non-ascii characters
import sys

lineNumber = 0
with open(sys.argv[1], 'r') as handle:
    try:
        for line in handle:
            line = line.rstrip()
            lineNumber += 1
            cNumber = 0
            for c in line:
                cNumber += 1
                if 0 <= ord(c) <= 127:
                    pass
                else:
                    print(lineNumber, ' ', cNumber, " passed")
    except UnicodeDecodeError:
        print(lineNumber, " ", cNumber,  " exception caught")
        print(line)