'GET /repos/:owner/:repo/git/blobs/:sha
https://developer.github.com/v3/git/blobs/#get-a-blob'

def get_blob(self, owner, repo, sha):

    try:
        response = self._root.get(('repos/%s/%s/git/blobs/%s' % (owner, repo, sha)), headers=self.__headers, params=self.__params)
        return self._get_json(response)
    except RestException as e:
        raise GithubClientException(('Could    not    find    GitHub    object,    check    owner,    repo    and    sha    or    permissions:    %s' % e))
