Subinterpretor compatible __res module (2nd attempt)

Cython is not yet subinterpreter compatible. There are no ETA when cython is going to support subinterpreters.

This PR removes cython from hermetic python imoprt hooks in order to make them subinterpretr-compatible.
commit_hash:427b6f9db6afa6695659ee147621e1ccb391d3cb

2 files changed, 5 insertions, 1 deletions

diff --git a/contrib/tools/python3/Python/_warnings.c b/contrib/tools/python3/Python/_warnings.c
index 1f91edbf5cb..f0ab47efb64 100644
--- a/contrib/tools/python3/Python/_warnings.c
+++ b/contrib/tools/python3/Python/_warnings.c
@@ -791,6 +791,10 @@ is_internal_filename(PyObject *filename)
         }
     }
 
+    if (_PyUnicode_EqualToASCIIString(filename, "library/python/runtime_py3/__res.py")) {
+        return true;
+    }
+
     return false;
 }
 
diff --git a/contrib/tools/python3/Python/import.c b/contrib/tools/python3/Python/import.c
index daac00593d7..1b550d0451c 100644
--- a/contrib/tools/python3/Python/import.c
+++ b/contrib/tools/python3/Python/import.c
@@ -2523,7 +2523,7 @@ remove_importlib_frames(PyThreadState *tstate)
 {
     const char *importlib_filename = "<frozen importlib._bootstrap>";
     const char *external_filename = "<frozen importlib._bootstrap_external>";
-    const char *importer_filename = "library/python/runtime_py3/importer.pxi";
+    const char *importer_filename = "library/python/runtime_py3/__res.py";
     const char *remove_frames = "_call_with_frames_removed";
     int always_trim = 0;
     int in_importlib = 0;