[macOS] Update Python installer script (#13157)

images/macos/scripts/build/install-python.sh

@@ -11,9 +11,19 @@ echo "Installing Python Tooling"
 # Close Finder window
 close_finder_window
 
-echo "Brew Installing Python 3"
+# Installing latest Homebrew Python 3 to handle python3 and pip3 symlinks
-brew_smart_install "python@3.12"
+# When latest Python3 is installed as a dependency for other packages
+# it does not create /usr/local/bin/python3 and /usr/local/bin/pip3
+echo "Brew Installing default Python 3"
+brew_smart_install "python"
 
+# Install specific Python version
+# Update symlinks for python3 and pip3 to point to the specific version
+toolsetVersion=$(get_toolset_value '.python.default')
+echo "Installing Python $toolsetVersion"
+brew_smart_install "python@$toolsetVersion"
+
+# Pipx has its own Python dependency
 echo "Installing pipx"
 
 if is_Arm64; then

images/macos/scripts/tests/Python.Tests.ps1

@@ -14,7 +14,7 @@ Describe "Python3" {
         }
     } else {
         It "Python 3 is installed under /usr/local/bin" {
-            Get-ToolPath "python3" | Should -BeLike "/usr/local/bin*"
+            Get-ToolPath "python3" | Should -BeLike "/usr/local/bin/*"
         }
     }
 

images/macos/toolsets/toolset-14.json

@@ -222,6 +222,9 @@
             "fastlane"
         ]
     },
+    "python": {
+        "default": "3.13"
+    },
     "toolcache": [
         {
             "name": "Python",

images/macos/toolsets/toolset-15.json

@@ -226,6 +226,9 @@
             "fastlane"
         ]
     },
+    "python": {
+        "default": "3.13"
+    },
     "toolcache": [
         {
             "name": "Python",

images/macos/toolsets/toolset-26.json

@@ -130,6 +130,9 @@
             "fastlane"
         ]
     },
+    "python": {
+        "default": "3.13"
+    },
     "toolcache": [
         {
             "name": "Python",