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51 lines
1.6 KiB
Python
51 lines
1.6 KiB
Python
from freqtrade.constants import DECIMAL_PER_COIN_FALLBACK, DECIMALS_PER_COIN
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def decimals_per_coin(coin: str):
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"""
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Helper method getting decimal amount for this coin
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example usage: f".{decimals_per_coin('USD')}f"
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:param coin: Which coin are we printing the price / value for
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"""
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return DECIMALS_PER_COIN.get(coin, DECIMAL_PER_COIN_FALLBACK)
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def strip_trailing_zeros(value: str) -> str:
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"""
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Strip trailing zeros from a string
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:param value: Value to be stripped
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:return: Stripped value
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"""
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return value.rstrip('0').rstrip('.')
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def round_value(value: float, decimals: int, keep_trailing_zeros=False) -> str:
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"""
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Round value to given decimals
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:param value: Value to be rounded
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:param decimals: Number of decimals to round to
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:param keep_trailing_zeros: Keep trailing zeros "222.200" vs. "222.2"
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:return: Rounded value as string
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"""
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val = f"{value:.{decimals}f}"
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if not keep_trailing_zeros:
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val = strip_trailing_zeros(val)
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return val
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def fmt_coin(
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value: float, coin: str, show_coin_name=True, keep_trailing_zeros=False) -> str:
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"""
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Format price value for this coin
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:param value: Value to be printed
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:param coin: Which coin are we printing the price / value for
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:param show_coin_name: Return string in format: "222.22 USDT" or "222.22"
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:param keep_trailing_zeros: Keep trailing zeros "222.200" vs. "222.2"
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:return: Formatted / rounded value (with or without coin name)
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"""
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val = round_value(value, decimals_per_coin(coin), keep_trailing_zeros)
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if show_coin_name:
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val = f"{val} {coin}"
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return val
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