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pylint

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This commit is contained in:
Lex Berezhny 2019-06-21 02:22:38 -04:00
parent d8265add2d
commit 2f74611844
1 changed files with 12 additions and 18 deletions
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30
torba/torba/client/coinselection.py
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@ -35,18 +35,16 @@ class CoinSelector:
return getattr(self, strategy_name or "standard")(txos, available)
@strategy
def prefer_confirmed(
self, txos: List[basetransaction.BaseOutputEffectiveAmountEstimator], available: int
) -> List[basetransaction.BaseOutputEffectiveAmountEstimator]:
def prefer_confirmed(self, txos: List[basetransaction.BaseOutputEffectiveAmountEstimator],
available: int) -> List[basetransaction.BaseOutputEffectiveAmountEstimator]:
return (
self.only_confirmed(txos, available) or
self.standard(txos, available)
)
@strategy
def only_confirmed(
self, txos: List[basetransaction.BaseOutputEffectiveAmountEstimator], _
) -> List[basetransaction.BaseOutputEffectiveAmountEstimator]:
def only_confirmed(self, txos: List[basetransaction.BaseOutputEffectiveAmountEstimator],
_) -> List[basetransaction.BaseOutputEffectiveAmountEstimator]:
confirmed = [t for t in txos if t.txo.tx_ref and t.txo.tx_ref.height > 0]
if not confirmed:
return []
@ -56,9 +54,8 @@ class CoinSelector:
return self.standard(confirmed, confirmed_available)
@strategy
def standard(
self, txos: List[basetransaction.BaseOutputEffectiveAmountEstimator], available: int
) -> List[basetransaction.BaseOutputEffectiveAmountEstimator]:
def standard(self, txos: List[basetransaction.BaseOutputEffectiveAmountEstimator],
available: int) -> List[basetransaction.BaseOutputEffectiveAmountEstimator]:
return (
self.branch_and_bound(txos, available) or
self.closest_match(txos, available) or
@ -66,9 +63,8 @@ class CoinSelector:
)
@strategy
def branch_and_bound(
self, txos: List[basetransaction.BaseOutputEffectiveAmountEstimator], available: int
) -> List[basetransaction.BaseOutputEffectiveAmountEstimator]:
def branch_and_bound(self, txos: List[basetransaction.BaseOutputEffectiveAmountEstimator],
available: int) -> List[basetransaction.BaseOutputEffectiveAmountEstimator]:
# see bitcoin implementation for more info:
# https://github.com/bitcoin/bitcoin/blob/master/src/wallet/coinselection.cpp
@ -127,9 +123,8 @@ class CoinSelector:
return []
@strategy
def closest_match(
self, txos: List[basetransaction.BaseOutputEffectiveAmountEstimator], _
) -> List[basetransaction.BaseOutputEffectiveAmountEstimator]:
def closest_match(self, txos: List[basetransaction.BaseOutputEffectiveAmountEstimator],
_) -> List[basetransaction.BaseOutputEffectiveAmountEstimator]:
""" Pick one UTXOs that is larger than the target but with the smallest change. """
target = self.target + self.cost_of_change
smallest_change = None
@ -142,9 +137,8 @@ class CoinSelector:
return [best_match] if best_match else []
@strategy
def random_draw(
self, txos: List[basetransaction.BaseOutputEffectiveAmountEstimator], _
) -> List[basetransaction.BaseOutputEffectiveAmountEstimator]:
def random_draw(self, txos: List[basetransaction.BaseOutputEffectiveAmountEstimator],
_) -> List[basetransaction.BaseOutputEffectiveAmountEstimator]:
""" Accumulate UTXOs at random until there is enough to cover the target. """
target = self.target + self.cost_of_change
self.random.shuffle(txos, self.random.random)