[release/9.0] Mark Aspire.Hosting.Python as experimental (#6460)

* Mark Aspire.Hosting.Python as experimental

Fixes #6298

* PR feedbcak

* Move suppression to csproj

* Remove stable flag from csproj

---------

Co-authored-by: Sebastien Ros <sebastienros@gmail.com>

Author: github-actions[bot]

playground/python/Python.AppHost/Program.cs

@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+#pragma warning disable ASPIREHOSTINGPYTHON001 // Test for experimental feature
+
 var builder = DistributedApplication.CreateBuilder(args);
 
 builder.AddPythonApp("script-only", "../script_only", "main.py");

src/Aspire.Hosting.Python/Aspire.Hosting.Python.csproj

@@ -6,8 +6,6 @@
     <PackageTags>aspire integration hosting python</PackageTags>
     <Description>Python support for .NET Aspire.</Description>
     <MinCodeCoverage>80</MinCodeCoverage>
-    <!-- In preview until the public API is validated. -->
-    <SuppressFinalPackageVersion>true</SuppressFinalPackageVersion>
   </PropertyGroup>
 
   <ItemGroup>

src/Aspire.Hosting.Python/AssemblyInfo.cs

@@ -0,0 +1,6 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System.Diagnostics.CodeAnalysis;
+
+[assembly: Experimental("ASPIREHOSTINGPYTHON001", UrlFormat = "https://aka.ms/dotnet/aspire/diagnostics#{0}")]

tests/Aspire.Hosting.Python.Tests/Aspire.Hosting.Python.Tests.csproj

@@ -2,6 +2,10 @@
 
   <PropertyGroup>
     <TargetFramework>$(DefaultTargetFramework)</TargetFramework>
+    <NoWarn>
+      $(NoWarn);
+      ASPIREHOSTINGPYTHON001;
+    </NoWarn>
   </PropertyGroup>
 
   <ItemGroup>