From 438edeef5bcf75a7451b81d6683e76522ed8d47a Mon Sep 17 00:00:00 2001
From: Trinh Anh Ngoc <atw1990@gmail.com>
Date: Tue, 13 Jan 2026 17:48:10 +0100
Subject: [PATCH] PY-86301 java.lang.IllegalArgumentException in
 TypeEvalContext in PyCharm 2025.3.0

GitOrigin-RevId: ff33ed66c8333e91ae6fea39dd8552ee950df60b
---
 .../src/com/jetbrains/python/psi/types/TypeEvalContext.java | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/python/python-psi-api/src/com/jetbrains/python/psi/types/TypeEvalContext.java b/python/python-psi-api/src/com/jetbrains/python/psi/types/TypeEvalContext.java
index 4da00ce8a375..cb3fc685aa38 100644
--- a/python/python-psi-api/src/com/jetbrains/python/psi/types/TypeEvalContext.java
+++ b/python/python-psi-api/src/com/jetbrains/python/psi/types/TypeEvalContext.java
@@ -418,7 +418,11 @@ public sealed class TypeEvalContext {
   }
 
   private static boolean inPyiFile(@NotNull PsiElement element) {
-    if (isPyiFile(element.getContainingFile())) {
+    PsiFile containingFile = element.getContainingFile();
+    if (containingFile == null) {
+      return false;
+    }
+    if (isPyiFile(containingFile)) {
       return true;
     }
     PsiFile contextFile = getContextFile(element);