Use python 3.14 environment in GitHub workflows

.github/workflows/check-onemath.yaml

@@ -70,7 +70,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ['3.13'] # no dpctl package on PyPI with enabled python 3.14 support
+        python: ['3.14']
         os: [ubuntu-latest] # windows-2022 - no DFT support for Windows in oneMKL
 
     runs-on: ${{ matrix.os }}
@@ -187,7 +187,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ['3.13'] # no dpctl package on PyPI with enabled python 3.14 support
+        python: ['3.14']
         os: [ubuntu-latest] # windows-2022 - no DFT support for Windows in oneMKL
 
     runs-on: ${{ matrix.os }}

.github/workflows/conda-package.yml

@@ -659,7 +659,7 @@ jobs:
       dpnp-repo-path: '${{ github.workspace }}/source/'
       array-api-skips-file: '${{ github.workspace }}/source/.github/workflows/array-api-skips.txt'
       create-conda-channel-env: 'source/environments/create_conda_channel.yml'
-      python-ver: '3.13' # it has to be aligned with python in create_conda_channel.yml
+      python-ver: '3.14'
       conda-env-name: 'array-api-conformity'
       channel-path: '${{ github.workspace }}/channel/'
       pkg-path-in-channel: '${{ github.workspace }}/channel/linux-64/'

dpnp/tensor/_slicing.pyx

@@ -28,6 +28,7 @@
 
 # distutils: language = c++
 # cython: language_level=3
+# cython: linetrace=True
 
 from operator import index
 from cpython.buffer cimport PyObject_CheckBuffer

dpnp/tensor/_stride_utils.pyx

@@ -28,6 +28,7 @@
 
 # distutils: language = c++
 # cython: language_level=3
+# cython: linetrace=True
 
 from cpython.mem cimport PyMem_Free, PyMem_Malloc
 from cpython.ref cimport Py_INCREF

dpnp/tensor/_types.pyx

@@ -28,6 +28,7 @@
 
 # distutils: language = c++
 # cython: language_level=3
+# cython: linetrace=True
 
 import numpy as np
 

environments/building_docs.yml

@@ -2,7 +2,7 @@ name: Building docs specific packages
 channels:
   - conda-forge
 dependencies:
-  - python=3.13 # no dpctl package on PyPI with enabled python 3.14 support
+  - python=3.14
   - cupy
   - sphinx
   - furo

environments/coverage.yml

@@ -2,7 +2,7 @@ name: Coverage specific packages
 channels:
   - conda-forge
 dependencies:
-  - python=3.12 # no python 3.13 support by coveralls
+  - python=3.14
   - coverage[toml]
   - llvm
   - pytest-cov

environments/upload_cleanup_conda_pkg.yml

@@ -2,5 +2,5 @@ name: Upload or clean up a conda package
 channels:
   - conda-forge
 dependencies:
-  - python=3.13
+  - python=3.14
   - anaconda-client=1.14.1

pyproject.toml

@@ -121,6 +121,11 @@ omit = [
 
 [tool.coverage.run]
 branch = true
+# Pin the C trace core. On Python 3.14+ coverage.py defaults to the sys.monitoring
+# ("sysmon") core, which (1) does not support plugins such as Cython.Coverage below,
+# and (2) corrupts the exception state when a C/Cython function raises, turning
+# expected exceptions into SystemError (e.g. usm_ndarray.__dlpack__ in test_dlpack.py).
+core = "ctrace"
 omit = [
   "dpnp/tests/*",
   "dpnp/_version.py"