AttributeError: module 'socket' has no attribute 'TCP_KEEPINTVL' on Windows and macOS

[ksaurabh02]

I'm trying to use the anthropic-sdk on both Windows and macOS, but I'm encountering the following error on both platforms:

anthropic\_base_client.py:795 Message: AttributeError: module 'socket' has no attribute 'TCP_KEEPINTVL'

After investigating, I found that the socket.TCP_KEEPINTVL attribute isn't available on all platforms, particularly Windows and macOS.

To resolve the issue locally, I modified _base_client.py as follows:

if "transport" not in kwargs:
    socket_options = [
        (socket.SOL_SOCKET, socket.SO_KEEPALIVE, True)
    ]

    if getattr(socket, 'TCP_KEEPINTVL', None) is not None:
        socket_options += [(socket.IPPROTO_TCP, socket.TCP_KEEPINTVL, 60)]
    elif sys.platform == 'darwin':
        TCP_KEEPALIVE = getattr(socket, 'TCP_KEEPALIVE', 0x10)
        socket_options += [(socket.IPPROTO_TCP, TCP_KEEPALIVE, 60)]

    if getattr(socket, 'TCP_KEEPCNT', None) is not None:
        socket_options += [(socket.IPPROTO_TCP, socket.TCP_KEEPCNT, 5)]

    TCP_KEEPIDLE = getattr(socket, "TCP_KEEPIDLE", None)
    if TCP_KEEPIDLE is not None:
        socket_options.append((socket.IPPROTO_TCP, TCP_KEEPIDLE, 60))

With this change, the SDK works as expected on both platforms.

Would this be a valid fix to submit as a PR? Happy to open one if this approach looks good.

[RobertCraigie]

I'm surprised you're seeing that error on macos, I was under the impression it was always available on macos 🤔

PR would be great, thank you!

[ksaurabh02]

@RobertCraigie Sure, created a PR #935

[ksaurabhAparavi]

@RobertCraigie Please have a look at the PR.