Return a list of parsed avro schemas as dictionaries.

    :param Repo repo:
        The git repository.
    :returns: dict

def list_schemas(repo):
    """
    Return a list of parsed avro schemas as dictionaries.

    :param Repo repo:
        The git repository.
    :returns: dict
    """
    schema_files = glob.glob(
        os.path.join(repo.working_dir, '_schemas', '*.avsc'))
    schemas = {}
    for schema_file in schema_files:
        with open(schema_file, 'r') as fp:
            schema = json.load(fp)
            schemas['%(namespace)s.%(name)s' % schema] = schema
    return schemas