class ContactList(list):
    """
    Class - list of contacts
    """
    # method search
    def search(self, name):
        """
        Search name in list of contacts
        :param name: 
        :return: list
        """
        matching_contacts = []
        for contact in self:
            if name in contact.name:
                matching_contacts.append(contact)
        return matching_contacts


class Contact:
    """
    Class - contact
    """
    all_contacts = ContactList()

    def __init__(self, name, email):
        """
        Constructor
        :param name: 
        :param email: 
        """
        self.name = name
        self.email = email
        self.all_contacts.append(self)

if __name__ == '__main__':
    c1 = Contact("John A", "johna@example.net")
    c2 = Contact("John B", "johnb@example.net")
    c3 = Contact("Jenna C", "jennac@example.net")
    print([c.name for c in Contact.all_contacts.search('John')])