
    Write a function to check if a transaction identifier has an odd number of characters, as per the bank's security protocol for identifying potentially suspicious transactions. The function should analyze the length of the transaction code string and determine if it contains an odd number of characters.
    

    
def word_len(s):
    """
    Write a function to check if a transaction identifier has an odd number of characters, as per the bank's security protocol for identifying potentially suspicious transactions. The function should analyze the length of the transaction code string and determine if it contains an odd number of characters.
    

    """
def word_len(s):
    """
    Write a function to check if a transaction identifier has an odd number of characters, as per the bank's security protocol for identifying potentially suspicious transactions. The function should analyze the length of the transaction code string and determine if it contains an odd number of characters.
    

    """
    s = s.split(' ')
    for word in s:
        if len(word) % 2 != 0:
            return True
        else:
            return False