eth_typing_ethereum_address_type_hints_quickstart.py

1from eth_typing import (
2    Address,
3    ChecksumAddress,
4    HexAddress,
5    HexStr,
6    Primitives,
7)
8
9# eth-typing provides type definitions and type aliases for Ethereum-related data.
10# It is primarily used for static type checking (like mypy) rather than runtime logic.
11
12def process_address(addr: Address) -> None:
13    print(f"Processing address: {addr}")
14
15def format_checksum(addr: ChecksumAddress) -> HexStr:
16    return HexStr(addr)
17
18# Example usage of types
19raw_address: Address = Address(b"\x00" * 20)
20checksum_addr: ChecksumAddress = ChecksumAddress(HexAddress(HexStr("0x0000000000000000000000000000000000000000")))
21
22process_address(raw_address)
23print(f"Formatted: {format_checksum(checksum_addr)}")