From 8838710cae09a9ed785530abc48e08d9231b1712 Mon Sep 17 00:00:00 2001
From: Emmanuel Okedele <emmanuel@coefficient.ai>
Date: Thu, 17 Jul 2025 07:58:54 +0100
Subject: [PATCH 1/2] Switching from list comprehension to np.fromiter converts
 this to an nd.array and resolves mypy error

---
 pymc/sampling/mcmc.py | 2 +-
 scripts/run_mypy.py   | 1 -
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/pymc/sampling/mcmc.py b/pymc/sampling/mcmc.py
index 542797caa..ddb0cdc4f 100644
--- a/pymc/sampling/mcmc.py
+++ b/pymc/sampling/mcmc.py
@@ -760,7 +760,7 @@ def joined_blas_limiter():
             UserWarning,
         )
     rngs = get_random_generator(random_seed).spawn(chains)
-    random_seed_list = [rng.integers(2**30) for rng in rngs]
+    random_seed_list = np.fromiter((rng.integers(2**30) for rng in rngs), dtype=np.int64)
 
     if not discard_tuned_samples and not return_inferencedata and not isinstance(trace, ZarrTrace):
         warnings.warn(
diff --git a/scripts/run_mypy.py b/scripts/run_mypy.py
index 032fbc938..3f104684a 100755
--- a/scripts/run_mypy.py
+++ b/scripts/run_mypy.py
@@ -44,7 +44,6 @@
 pymc/model/transform/conditioning.py
 pymc/pytensorf.py
 pymc/sampling/jax.py
-pymc/sampling/mcmc.py
 """
 
 

From 7e7db25b7e59a9a957b86b237abaa82c2a71c87d Mon Sep 17 00:00:00 2001
From: Emmanuel Okedele <emmanuel@coefficient.ai>
Date: Fri, 18 Jul 2025 09:29:23 +0100
Subject: [PATCH 2/2] temporarily added as failing until numpy is upgraded to >
 2.3

---
 scripts/run_mypy.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/run_mypy.py b/scripts/run_mypy.py
index 3f104684a..032fbc938 100755
--- a/scripts/run_mypy.py
+++ b/scripts/run_mypy.py
@@ -44,6 +44,7 @@
 pymc/model/transform/conditioning.py
 pymc/pytensorf.py
 pymc/sampling/jax.py
+pymc/sampling/mcmc.py
 """