except IndexError:
                return None

    try:
        # Need to import this one as well to make sure it's executed before
        # this code. This didn't use to be an issue until 3.3. Starting with
        # 3.4 this is different, it always overwrites the completer if it's not
        # already imported here.
        import rlcompleter  # noqa: F401
        import readline
    except ImportError:
        print("Jedi: Module readline not available.")
    else:
        readline.set_completer(JediRL().complete)
        readline.parse_and_bind("tab: complete")
        # jedi itself does the case matching
        readline.parse_and_bind("set completion-ignore-case on")
        # because it's easier to hit the tab just once
        readline.parse_and_bind("set show-all-if-unmodified")
        readline.parse_and_bind("set show-all-if-ambiguous on")
        # don't repeat all the things written in the readline all the time
        readline.parse_and_bind("set completion-prefix-display-length 2")
        # No delimiters, Jedi handles that.
        readline.set_completer_delims('')


def version_info():
    """
    Returns a namedtuple of Jedi's version, similar to Python's
    ``sys.version_info``.
    """
    Version = namedtuple('Version', 'major, minor, micro')
    from jedi import __version__
    tupl = re.findall(r'[a-z]+|\d+', __version__)
    return Version(*[x if i == 3 else int(x) for i, x in enumerate(tupl)])
PK