From 36c24be35d5636519c6052e1443c76f7b2ea7c93 Mon Sep 17 00:00:00 2001
From: MemOS AutoDev <autodev@memtensor.cn>
Date: Tue, 30 Jun 2026 00:48:51 +0800
Subject: [PATCH] fix: raise scipy floor to ^1.13.0 for numpy 2.x / chonkie 1.6
 compatibility

The [tool.poetry.group.eval] block declared `scipy = "^1.10.1"`, but
scipy 1.10.x pins `numpy<1.27.0` while chonkie>=1.6 requires
`numpy>=2.0.0`. The two constraints cannot be jointly satisfied, so
users hitting both packages saw the
`ImportError: numpy.core.multiarray failed to import` reported in #1342.

scipy 1.13.0 is the first release that supports numpy 2.x, so this
commit:

- Bumps the eval-group scipy floor `^1.10.1` -> `^1.13.0`.
- Adds an explanatory comment near the chonkie entry in `mem-reader`
  extras so future readers see the numpy 2.x implication.

scipy is only imported by `evaluation/scripts/{longmemeval,locomo}_eval.py`;
no `src/memos/` code path is affected. The committed `poetry.lock`
already resolves scipy to 1.15.3 / 1.16.0 (numpy 2.2.6 / 2.3.1), all of
which satisfy the new floor, so no re-lock is needed.

Fixes #1342
---
 pyproject.toml | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pyproject.toml b/pyproject.toml
index 5d65422d3..c61775f4a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -89,6 +89,8 @@ mem-user = [
 
 # MemReader
 mem-reader = [
+    # chonkie>=1.6 pulls numpy>=2.0; any environment that also has scipy
+    # installed must use scipy>=1.13 (older scipy pins numpy<1.27). See #1342.
     "chonkie (>=1.0.7,<2.0.0)",  # Sentence chunking library
     "markitdown[docx,pdf,pptx,xls,xlsx] (>=0.1.1,<0.2.0)",  # Markdown parser for various file formats
     "langchain-text-splitters (>=1.0.0,<2.0.0)", # markdown chunk for langchain
@@ -193,7 +195,9 @@ zep-cloud = "^2.15.0"
 rouge-score = "^0.1.2"
 nltk = "^3.9.1"
 bert-score = "^0.3.13"
-scipy = "^1.10.1"
+# scipy 1.13+ supports numpy 2.x. Older scipy (1.10/1.11/1.12) pins numpy<1.27
+# which collides with chonkie>=1.6 (requires numpy>=2.0.0) — see issue #1342.
+scipy = "^1.13.0"
 python-dotenv = "^1.1.1"
 langgraph = "^0.5.1"