[issue32394] socket lib beahavior change in 3.6.4

[Ma Lin]

Ma Lin <malin...@163.com> added the comment:

Base on Kamil's code, a little improvements.


if hasattr(sys, 'getwindowsversion'):
    WIN_MAJOR, _, WIN_BUILD, *_ = sys.getwindowsversion()
    if WIN_MAJOR == 10:
        if WIN_BUILD >= 15063:    # Windows 10 1703
            pass
        elif WIN_BUILD >= 14393:  # Windows 10 1607
            del socket.TCP_KEEPCNT
        else:
            del socket.TCP_KEEPCNT
            del socket.TCP_FASTOPEN
    elif WIN_MAJOR < 10:
        del socket.TCP_KEEPCNT
        del socket.TCP_FASTOPEN


Windows 10 versions:
https://technet.microsoft.com/en-us/windows/release-info.aspx

----------
nosy: +Ma Lin

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