import PythonKit with S4TF toolchain on local machine

[tylerdarwin3]

Using CLion with Swift plug-in, I see this error after adding PythonKit into my build dependencies:

Compiling Swift_Cpp main.swift
error: compiling for macOS 10.10, but module ‘PythonKit’ has minimum deployment target of macOS 10.13: /Library/Developer/Toolchains/swift-tensorflow-RELEASE-0.11.xctoolchain/usr/lib/swift/macosx/PythonKit.swiftmodule/x86_64.swiftmodule

for reference, this was added to build dependencies:
.package(url: "https://github.com/pvieito/PythonKit.git", .branch("master")),

but import PythonKit yielded the error shown above.

[BradLarson]

I'm not sure where the minimum deployment target requirement is coming from, but one fix for this on macOS is to specify

platforms: [
        .macOS(.v10_13),
    ],

in your Package.swift, like is done here in swift-models. That will set the minimum macOS deployment target to 10.13 and satisfy the above. You won't see this error on Linux or other platforms, just macOS.