Merge remote-tracking branch 'origin/main' into 774-v2

Author: Christopher Rowley

.github/workflows/tests.yml

@@ -63,7 +63,7 @@ jobs:
       - name: Run tests
         uses: julia-actions/julia-runtest@v1
         env:
-          JULIA_DEBUG: PythonCall
+          JULIA_DEBUG: ${{ runner.debug == '1' && 'PythonCall' || '' }}
           JULIA_NUM_THREADS: '2'
           PYTHON: ${{ steps.setup-python.outputs.python-path }}
           JULIA_PYTHONCALL_EXE: ${{ case(matrix.pythonexe == 'python', steps.setup-python.outputs.python-path, matrix.pythonexe) }}

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## Unreleased
 * Added option `lib` to JuliaCall. Setting this will skip the discovery subprocess.
+* Bug fixes.
 
 ## 0.9.34 (2026-05-18)
 * Bug fixes.

src/Wrap/PyArray.jl

@@ -531,6 +531,8 @@ end
 function PyArraySource_Buffer(x::Py)
     memview = pybuiltins.memoryview(x)
     buf = C.UnsafePtr(C.PyMemoryView_GET_BUFFER(memview))
+    buf.suboffsets[] == C_NULL ||
+        error("PyArray does not support buffers with non-trivial suboffsets (PIL-style indirect layout)")
     PyArraySource_Buffer(x, memview, buf)
 end
 

test/Wrap.jl

@@ -89,6 +89,16 @@
         @test strides(y) == strides(y2)
         @test y == y2
     end
+    @testset "reject suboffsets (#775)" begin
+        tb = pyimport("_testbuffer")
+        nd = tb.ndarray(
+            pylist([1, 2, 3, 4, 5, 6]),
+            shape = pylist([2, 3]),
+            format = "i",
+            flags = tb.ND_PIL | tb.ND_WRITABLE,
+        )
+        @test_throws Exception PyArray(nd; array = false, buffer = true)
+    end
 end
 
 @testitem "PyDict" begin