From 285606108ae7afae96e8a0cc7932bc5bf05640aa Mon Sep 17 00:00:00 2001
From: Changming Sun <chasun@microsoft.com>
Date: Fri, 12 Jan 2024 07:22:02 -0800
Subject: [PATCH] Set pythonInterpreter in
 set-python-manylinux-variables-step.yml (#19105)

### Description
Set pythonInterpreter in set-python-manylinux-variables-step.yml. To fix
a build error:

```
Starting: Set Python manylinux variables
==============================================================================
Task         : Python script
Description  : Run a Python file or inline script
Version      : 0.231.1
Author       : Microsoft Corporation
Help         : https://docs.microsoft.com/azure/devops/pipelines/tasks/utility/python-script
==============================================================================
##[error]Parameter 'toolPath' cannot be null or empty.
Finishing: Set Python manylinux variables
```
The error was because today I deleted a bunch of software from the VM
image. The task might fail if no Python versions are found in
$(Agent.ToolsDirectory).
---
 .../templates/set-python-manylinux-variables-step.yml            | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/ci_build/github/azure-pipelines/templates/set-python-manylinux-variables-step.yml b/tools/ci_build/github/azure-pipelines/templates/set-python-manylinux-variables-step.yml
index 1fe58a7239369..68836117db81d 100644
--- a/tools/ci_build/github/azure-pipelines/templates/set-python-manylinux-variables-step.yml
+++ b/tools/ci_build/github/azure-pipelines/templates/set-python-manylinux-variables-step.yml
@@ -5,6 +5,7 @@ steps:
 - task: PythonScript@0
   displayName: 'Set Python manylinux variables'
   inputs:
+    pythonInterpreter: /usr/bin/python3
     scriptSource: inline
     script: |
       version = "$(PythonVersion)"