def get_pair_position(pair: TradePair, position: str) -> Asset:
assert position == 'first' or position == 'second'
currencies = pair.split('_')
if len(currencies) != 2:
raise ValueError("Could not split {} pair".format(pair))
currency = currencies[0] if position == 'first' else currencies[1]
return cast(Asset, currency)
def pair_get_assets(pair: TradePair) -> Tuple[Asset, Asset]:
"""Returns a tuple with the (base, quote) assets"""
assets = pair.split('_')
if len(assets) != 2:
raise ValueError(f'Could not split {pair} pair')
return cast(Asset, assets[0]), cast(Asset, assets[1])
def _split_pair(pair: TradePair) -> Tuple[str, str]:
assets = pair.split('_')
if len(assets) != 2:
# Could not split the pair
raise UnprocessableTradePair(pair)
if len(assets[0]) == 0 or len(assets[1]) == 0:
# no base or no quote asset
raise UnprocessableTradePair(pair)
return assets[0], assets[1]
def _split_pair(pair: TradePair) -> Tuple[str, str]:
assets = pair.split('_')
if len(assets) != 2:
raise ValueError(f'Could not split {pair} pair')
if len(assets[0]) == 0:
raise ValueError(f'Splitting {pair} yielded no base asset')
if len(assets[1]) == 0:
raise ValueError(f'Splitting {pair} yielded no quote asset')
return assets[0], assets[1]
