Support application/vnd.github.v3.star+json

[danvk]

See https://developer.github.com/v3/activity/starring/#list-stargazers

When requesting a list of stargazers, you can set a custom media type to find out when each user starred your repo. It would be great if pygithub supported this.

[danvk]

Here's some code:

class Stargazer(github.GithubObject.NonCompletableGithubObject):
    @property
    def starred_at(self):
        """
        :type: datetime.datetime
        """
        return self._starred_at.value

    @property
    def user(self):
        """
        :type: :class:`github.NamedUser`
        """
        return self._user.value

    def _initAttributes(self):
        self._starred_at = github.GithubObject.NotSet
        self._user = github.GithubObject.NotSet
        self._url = github.GithubObject.NotSet

    def _useAttributes(self, attributes):
        if 'starred_at' in attributes:
            self._starred_at = self._makeDatetimeAttribute(attributes['starred_at'])
        if 'user' in attributes:
            self._user = self._makeClassAttribute(github.NamedUser.NamedUser, attributes['user'])


def get_stargazers(repo):
    return github.PaginatedList.PaginatedList(
        Stargazer,
        repo._requester,
        repo.url + "/stargazers",
        None,
        # XXX: pygithub doesn't support this:
        headers={
            'Accept': 'application/vnd.github.v3.star+json'
        }
    )

and then you have to modify PaginatedList to accept a headers keyword arg which it passes through the call to self.__requester.requestJsonAndCheck.

[danvk]

(I'd be happy to turn this into a pull request if there's interest and adding a headers parameter seems like the way to go.)