Excel vba call Python script on Mac

How can I launch an external python process from Excel 365 VBA on OSX?

It took me a while, but I figured out how to do it.

Excel 2016 has replaced MacScript() with AppleScriptTask(). This needs to be given an AppleScript file and function to call, and can't, as far as I am aware, be given raw AppleScript commands.

I created an AppleScript file called PythonCommand.scpt which contained something like:

on PythonCommand(pythonScript)
do shell script "/usr/local/bin/python " & pythonScript
end PythonCommand
This AppleScript file needs to be then placed in ~/Library/Application Scripts/com.microsoft.Excel/ (create this folder if it doesn't exist)

Once this is here, the function can be called using:

Dim result As String
result = AppleScriptTask("PythonCommand.scpt", "PythonCommand", pythonScript)
(it insists on returning something - it won't work without this)

A security proviso:

Any Excel macro can call this AppleScript. Macros can do nasty things anyway, but it would be worth putting some protection into it anyway to avoid additional code being executed.

---

翻译成人话：

mkdir -p ~/Library/Application Scripts/com.microsoft.Excel
vim PythonCommand.scpt

i输入以下内容

on PythonCommand(pythonScript)
	do shell script "python -c '" & pythonScript & "'"
end PythonCommand

保存
然后在 Excel 新建一个 vba 模块

Sub CallPython()
    s = AppleScriptTask("PythonCommand.scpt", "PythonCommand", "print(42)")
    MsgBox (s)
End Sub

执行

have fun！