def public(thing):
    """Print 'public' attributes of thing."""
    for x in dir(thing):
        if not x.startswith('_'):
            print(x)

from github3 import login

username = 'jiffyclub'
token = '---'  # not an actual token

gh = login(username=username, token=token)

public(gh)

repo = gh.repository(username, 'demodemo')

public(repo)

repo.contents('/')

tf = repo.contents('test_file.md')

public(tf)

tf.content

tf.decoded

content = tf.decoded.decode('utf-8')

content

new_content = content + '\nA fancy new change via the GitHub API.\n'

c = tf.update('Trying out the GitHub API via github3.py and Python 3', new_content.encode('utf-8'))

c

public(c)

repo = repo.refresh()

files = repo.contents('/')
files

new_file_content = files['new_file.md'].refresh().decoded.decode('utf-8')
test_file_content = files['test_file.md'].refresh().decoded.decode('utf-8')

new_file_content

test_file_content

new_file_content = new_file_content + '\nMulti-file commit via the GitHub API!\n'
test_file_content = test_file_content + '\nMulti-file commit via the GitHub API!\n'

new_file_blob = repo.create_blob(new_file_content, encoding='utf-8')
test_file_blob = repo.create_blob(test_file_content, encoding='utf-8')
print(new_file_blob, test_file_blob)

branch = repo.branch(repo.default_branch)

public(branch)

tree_sha = branch.commit.commit.tree.sha

tree_data = [{'path': 'new_file.md', 'mode': '100644', 'type': 'blob', 'sha': new_file_blob},
             {'path': 'test_file.md', 'mode': '100644', 'type': 'blob', 'sha': test_file_blob}]
tree = repo.create_tree(tree_data, tree_sha)
tree

message = 'Modifying multiple files via the GitHub API and github3.py.'
c = repo.create_commit(message, tree.sha, [branch.commit.sha])
c

c.html_url

ref = repo.ref('heads/{}'.format(repo.default_branch))

ref.update(c.sha)

branch.links['html']