| import struct | |
| def raise_(ex): | |
| raise ex | |
| def to_bytes(value, size=1, endian='>'): | |
| return { | |
| 1: lambda: struct.pack(endian + 'B', value), | |
| 2: lambda: struct.pack(endian + 'H', value), | |
| 4: lambda: struct.pack(endian + 'I', value) | |
| }.get(size, lambda: raise_(RuntimeError("invalid size")))() | |
| def from_bytes(value, size=1, endian='>'): | |
| return { | |
| 1: lambda: struct.unpack(endian + 'B', value)[0], | |
| 2: lambda: struct.unpack(endian + 'H', value)[0], | |
| 4: lambda: struct.unpack(endian + 'I', value)[0] | |
| }.get(size, lambda: raise_(RuntimeError("invalid size")))() | |