OOP-self question

[IoannisDem]

Here is a part of a code i found online while i am trying to get familiar with oop:

class ContactList(list):
    def search(self, name):
        """Return all contacts that contain the search value
        in their name."""
        matching_contacts = []
        for contact in self:
            if name in contact.name:
                matching_contacts.append(contact)
return matching_contacts

can you explain me the for loop please(

for contact in self:

),how does it go?