python学习之——计算给出代码中注释、代码、空行的行数

def count_linenum(fname):
    fobj = open(fname,"rU")
    #print fobj.readlines()
    count_blankline = 0
    count_notes = 0
    count_code = 0
    for eachLine in fobj:
        if eachLine[0] == ‘\n‘:
            count_blankline += 1
        elif eachLine[0] == ‘#‘:
            count_notes += 1
        else:
            count_code += 1
    print "count_blankline:%d" %count_blankline
    print "count_notes:%d" %count_notes
    print "count_code:%d" %count_notes

    fobj.close()

if __name__ == ‘__main__‘:
    filename = raw_input("please enter filename:")
    count_linenum(filename)