Python Error With Socket. Ntohl()

I'm having an issue with the socket.ntohl() function, on some hosts. It is repeatable on all similar hosts; 32bit machines with Python 2.4.2. >>> socket.ntohl(16777215) -

Solution 1:

In older 32-bit Python versions, int was limited to a signed 32-bit number. 16777215 = 0x00FFFFFF and -256 in 32-bit 2s complement is 0xFFFFFF00.

It works correctly in Python 2.7 by upgrading the value to a long:

>>>socket.ntohl(16777215)
4294967040L
>>>hex(4294967040)
'0xffffff00L'

Edit:

Python 2.4 was the first version to unify int and long so what you see might be considered a bug that has been fixed by 2.7.

Looks like this issue fixed it.