From 2c0a1b2fdbe535328f90db0ab473d052c75f8f96 Mon Sep 17 00:00:00 2001
From: Daniele Varrazzo <daniele.varrazzo@gmail.com>
Date: Mon, 1 Dec 2025 02:10:55 +0100
Subject: [PATCH] chore: bump Mypy min required version to 1.19

Avoid installing Mypy as part of the tests extra: installation fails
because a binary librt is not available. As a consequence, avoid running
Mypy-based tests in test CI jobs on PyPy.
---
 .github/workflows/tests.yml  | 2 +-
 psycopg/pyproject.toml       | 5 +++--
 psycopg_c/psycopg_c/_uuid.py | 4 +++-
 tests/constraints.txt        | 2 +-
 4 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 3c3adce41..c2a640dc5 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -120,7 +120,7 @@ jobs:
       - name: Exclude certain tests from pypy
         if: ${{ startsWith(matrix.python, 'pypy') }}
         run: |
-          echo "NOT_MARKERS=$NOT_MARKERS timing" >> $GITHUB_ENV
+          echo "NOT_MARKERS=$NOT_MARKERS timing mypy" >> $GITHUB_ENV
 
       - name: Configure to use the oldest dependencies
         if: ${{ matrix.ext == 'min' }}
diff --git a/psycopg/pyproject.toml b/psycopg/pyproject.toml
index c0ce8d374..358a101d8 100644
--- a/psycopg/pyproject.toml
+++ b/psycopg/pyproject.toml
@@ -70,7 +70,8 @@ pool = [
 ]
 test = [
     "anyio >= 4.0",
-    "mypy >= 1.18.1",
+    # Mypy >= 1.19 depends on librt, not available for PyPy.
+    "mypy >= 1.19.0; implementation_name != \"pypy\"",
     "pproxy >= 2.7",
     "pytest >= 6.2.5",
     "pytest-cov >= 3.0",
@@ -85,7 +86,7 @@ dev = [
     "flake8 >= 4.0",
     "isort[colors] >= 6.0",
     "isort-psycopg",
-    "mypy >= 1.18.1",
+    "mypy >= 1.19.0",
     "pre-commit >= 4.0.1",
     "types-setuptools >= 57.4",
     "types-shapely >= 2.0",
diff --git a/psycopg_c/psycopg_c/_uuid.py b/psycopg_c/psycopg_c/_uuid.py
index ec6b5338f..0d63bf42d 100644
--- a/psycopg_c/psycopg_c/_uuid.py
+++ b/psycopg_c/psycopg_c/_uuid.py
@@ -25,4 +25,6 @@ class _WritableUUID(UUID):
     """
 
     __slots__ = ()  # Give the class the same memory layout of the base clasee
-    __setattr__ = object.__setattr__  # make the class writable
+
+    # Make the class writable.
+    __setattr__ = object.__setattr__  # type: ignore[assignment]
diff --git a/tests/constraints.txt b/tests/constraints.txt
index 4e9cbf6e0..2dea34be7 100644
--- a/tests/constraints.txt
+++ b/tests/constraints.txt
@@ -10,7 +10,7 @@ importlib-metadata == 1.4
 
 # From the 'test' extra
 anyio == 4.0
-mypy == 1.18.1
+mypy == 1.19.0
 pproxy == 2.7.0
 pytest == 6.2.5
 pytest-cov == 3.0.0
-- 
2.47.3