import logging
from decimal import Decimal

NUMBER_TYPES = (int, float, Decimal)

__version__ = "2.2.0"
__version_info__ = (2, 2, 0)

logger = logging.getLogger('geopy')


def pairwise(seq):
    """
    Pair an iterable, e.g., (1, 2, 3, 4) -> ((1, 2), (2, 3), (3, 4))
    """
    for i in range(0, len(seq) - 1):
        yield (seq[i], seq[i + 1])


def join_filter(sep, seq, pred=bool):
    """
    Join with a filter.
    """
    return sep.join([str(i) for i in seq if pred(i)])


def get_version():
    return __version__
