从 Python 返回错误到 PowerShell？

Question

我在 PowerShell 中运行多个 Python 脚本，并且我希望在 Python 脚本中的特定条件下通知 PowerShell 主脚本。就像从 Python 抛出错误并使用 PowerShell 捕获它一样。

Python 示例：

import os
print "Running Python script ..."
raise Exception("This Error is coming from Python")

和PowerShell主脚本：

$ErrorActionPreference = 'Stop'
try {
    python runThisScript.py -ErrorAction Stop
    # Write-Error -Message 'Oh no! An error!'
    Write-Host "What is that?"
} catch {
    Write-Host $_.Exception.Message -ForegroundColor Green
    throw [System.Exception] "Python scrip XXX failed"
} finally {
    Write-Host "This is the final block ..."
}

但这是行不通的。它将显示：

Running Python script ...
Traceback (most recent call last):
  File "runThisScript.py", line 5, in <module>
    raise Exception("This Error is coming from Python")
Exception: This Error is coming from Python
What is that?
This is the final block ...

如果我取消注释该行，Write-Error -Message 'Oh no! An error!'这就是我想要看到的内容（错误由 PowerShell 捕获并处理）。

Oh no! An error!
This is the final block ...
Python scrip XXX failed
At C:\Automation\general_stuff\tc\mainTestRunner.ps1:12 char:5
+     throw [System.Exception] "Python scrip XXX failed"
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : OperationStopped: (:) [], Exception
    + FullyQualifiedErrorId : Python scrip XXX failed

预先感谢您的评论。