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⚡️ Speed up function decode_hex by 49% #54

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⚡️ Speed up function decode_hex by 49% #54

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8 changes: 6 additions & 2 deletions python/ccxt/static_dependencies/ethereum/utils/hexadecimal.py
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Original file line number Diff line number Diff line change
Expand Up @@ -20,9 +20,13 @@


def decode_hex(value: str) -> bytes:
if not is_text(value):
if not isinstance(value, str):
raise TypeError("Value must be an instance of str")
non_prefixed = remove_0x_prefix(HexStr(value))
# Avoid function call overhead by inlining remove_0x_prefix logic
if value.startswith(("0x", "0X")):
non_prefixed = value[2:]
else:
non_prefixed = value
# unhexlify will only accept bytes type someday
ascii_hex = non_prefixed.encode("ascii")
return binascii.unhexlify(ascii_hex)
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