From f58c366a730ae3e68028dbf63aba7c4033eaec9b Mon Sep 17 00:00:00 2001
From: "Miss Islington (bot)"
 <31488909+miss-islington@users.noreply.github.com>
Date: Thu, 30 Jun 2022 07:53:20 -0700
Subject: GH-94329: Don't raise on excessive stack consumption (GH-94421)
 (GH-94446)

(cherry picked from commit b152bf448b321e3a4c0a7280e0b608840f5ac661)
---
 Lib/test/test_compile.py                                           | 6 ++++++
 .../2022-06-29-15-45-04.gh-issue-94329.olUQyk.rst                  | 2 ++
 Python/compile.c                                                   | 7 +------
 3 files changed, 9 insertions(+), 6 deletions(-)
 create mode 100644 Misc/NEWS.d/next/Core and Builtins/2022-06-29-15-45-04.gh-issue-94329.olUQyk.rst

diff --git a/Lib/test/test_compile.py b/Lib/test/test_compile.py
index c32c27f..d7c536e 100644
--- a/Lib/test/test_compile.py
+++ b/Lib/test/test_compile.py
@@ -1207,6 +1207,12 @@ class TestExpressionStackSize(unittest.TestCase):
         code += "   x and x\n" * self.N
         self.check_stack_size(code)
 
+    def test_stack_3050(self):
+        M = 3050
+        code = "x," * M + "=t"
+        # This raised on 3.10.0 to 3.10.5
+        compile(code, "<foo>", "single")
+
 
 class TestStackSizeStability(unittest.TestCase):
     # Check that repeating certain snippets doesn't increase the stack size
diff --git a/Misc/NEWS.d/next/Core and Builtins/2022-06-29-15-45-04.gh-issue-94329.olUQyk.rst b/Misc/NEWS.d/next/Core and Builtins/2022-06-29-15-45-04.gh-issue-94329.olUQyk.rst
new file mode 100644
index 0000000..afd31b6
--- /dev/null
+++ b/Misc/NEWS.d/next/Core and Builtins/2022-06-29-15-45-04.gh-issue-94329.olUQyk.rst	
@@ -0,0 +1,2 @@
+Compile and run code with unpacking of extremely large sequences (1000s of elements).
+Such code failed to compile. It now compiles and runs correctly.
diff --git a/Python/compile.c b/Python/compile.c
index 70a754b..1bb0d96 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -8391,12 +8391,7 @@ assemble(struct compiler *c, int addNone)
     if (maxdepth < 0) {
         goto error;
     }
-    if (maxdepth > MAX_ALLOWED_STACK_USE) {
-        PyErr_Format(PyExc_SystemError,
-                     "excessive stack use: stack is %d deep",
-                     maxdepth);
-        goto error;
-    }
+    /* TO DO -- For 3.12, make sure that `maxdepth <= MAX_ALLOWED_STACK_USE` */
 
     if (label_exception_targets(entryblock)) {
         goto error;
-- 
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