[python] (PY-84251) check for invalid executable

(cherry picked from commit 1f530f9b03058bdf9997f68aeeb34c06c3785bea)

IJ-MR-178452

GitOrigin-RevId: 0abb76aaf9998e937facb0fdd5109b0131f7f26e

python/src/com/jetbrains/python/sdk/add/v2/uv/EnvironmentCreatorUv.kt

@@ -45,7 +45,7 @@ import kotlin.io.path.exists
 import kotlin.io.path.readText
 
 
-internal class EnvironmentCreatorUv<P: PathHolder>(
+internal class EnvironmentCreatorUv<P : PathHolder>(
   model: PythonMutableTargetAddInterpreterModel<P>,
   private val module: Module?,
   errorSink: ErrorSink,
@@ -120,14 +120,14 @@ internal class EnvironmentCreatorUv<P: PathHolder>(
           )
         }
 
-        if (executable == null) {
-          return@onEach
-        }
-
         versionComboBox.removeAllItems()
         versionComboBox.addItem(null)
         versionComboBox.selectedItem = null
 
+        if (executable?.validationResult?.successOrNull == null) {
+          return@onEach
+        }
+
         try {
           loading.set(true)