fix windows, py313 builds

.github/workflows/wheels-test.ps1

@@ -1,4 +1,4 @@
-param ([string]$venv, [string]$pillow_avif_plugin="C:\pillow_avif_plugin")
+param ([string]$venv, [string]$pillow_avif_plugin="C:\pillow-avif-plugin")
 $ErrorActionPreference  = 'Stop'
 $ProgressPreference = 'SilentlyContinue'
 Set-PSDebug -Trace 1

.github/workflows/wheels.yml

@@ -311,12 +311,12 @@ jobs:
           CIBW_PRERELEASE_PYTHONS: True
           CIBW_TEST_SKIP: "*-win_arm64"
           CIBW_TEST_COMMAND: 'docker run --rm
-            -v {project}:C:\pillow
+            -v {project}:C:\pillow-avif-plugin
             -v C:\cibw:C:\cibw
             -v %CD%\..\venv-test:%CD%\..\venv-test
             -e CI -e GITHUB_ACTIONS
             mcr.microsoft.com/windows/servercore:ltsc2022
-            powershell C:\pillow\.github\workflows\wheels-test.ps1 %CD%\..\venv-test'
+            powershell C:\pillow-avif-plugin\.github\workflows\wheels-test.ps1 %CD%\..\venv-test'
         shell: cmd
 
       - name: Upload wheels

setup.py

@@ -41,6 +41,21 @@ def readme():
         ]
     )
 
+test_requires = [
+    "gcovr",
+    "pytest",
+    "packaging",
+    "pytest-cov",
+    "test-image-results",
+    "pillow",
+]
+
+if sys.version_info[:2] == (3, 13):
+    test_requires += [
+        "git+https://github.com/cython/cython.git@"
+        "7beedb19c43f3e865056b8181e55897b222a645b#egg=cython"
+    ]
+
 setup(
     name="pillow-avif-plugin",
     description="A pillow plugin that adds avif support via libavif",
@@ -64,16 +79,7 @@ def readme():
     url="https://github.com/fdintino/pillow-avif-plugin/",
     download_url="https://github.com/fdintino/pillow-avif-plugin/releases",
     install_requires=[],
-    extras_require={
-        "tests": [
-            "gcovr",
-            "pytest",
-            "packaging",
-            "pytest-cov",
-            "test-image-results",
-            "pillow",
-        ]
-    },
+    extras_require={"tests": test_requires},
     classifiers=[
         "Development Status :: 5 - Production/Stable",
         "Environment :: Web Environment",