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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def ipv4_lstrip_zeros(address):
 """ The function to strip leading zeros in each octet of an IPv4 address. Args: address (:obj:`str`):
 An IPv4 address. Returns: str: The modified IPv4 address. """


    # Split  the octets.
    obj = address.strip().split('.')

    for x, y in enumerate(obj):

        # Strip leading zeros. Split / here in case CIDR is attached.
        obj[x] = y.split('/')[0].lstrip('0')
        if obj[x] in ['', None]:
            obj[x] = '0'

    return '.'.join(obj)