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Fall back "price_to_precision" to ccxt where possible

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Matthias
2023-08-30 07:53:00 +00:00
parent 994b2a0f28
commit 133660ff4e
1 changed files with 8 additions and 4 deletions
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12
freqtrade/exchange/exchange_utils.py
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@@ -271,6 +271,13 @@ def price_to_precision(
:return: price rounded up to the precision the Exchange accepts
"""
if price_precision is not None and precisionMode is not None:
if rounding_mode not in (ROUND_UP, ROUND_DOWN):
# Use CCXT code where possible.
return float(decimal_to_precision(price, rounding_mode=rounding_mode,
precision=price_precision,
counting_mode=precisionMode
))
if precisionMode == TICK_SIZE:
if rounding_mode == ROUND:
ticks = price / price_precision
@@ -283,16 +290,13 @@ def price_to_precision(
return round(float(str(price_str - missing + precision)), 14)
return price
elif precisionMode in (SIGNIFICANT_DIGITS, DECIMAL_PLACES):
ndigits = round(price_precision)
if rounding_mode == ROUND:
return round(price, ndigits)
ticks = price * (10**ndigits)
if rounding_mode == ROUND_UP:
return ceil(ticks) / (10**ndigits)
if rounding_mode == ROUND_DOWN:
return floor(ticks) / (10**ndigits)
if rounding_mode == TRUNCATE:
return int(ticks) / (10**ndigits)
raise ValueError(f"Unknown rounding_mode {rounding_mode}")
raise ValueError(f"Unknown precisionMode {precisionMode}")