Backport PR #61519: BUILD: Bump Cython to 3.1 (#61558)

* Backport PR #61519: BUILD: Bump Cython to 3.1

* Remove files that don't exist on 2.3.x

---------

Co-authored-by: Richard Shadrach <[email protected]>

Author: mroeschke

asv_bench/asv.conf.json

@@ -41,7 +41,8 @@
     // pip (with all the conda available packages installed first,
     // followed by the pip installed packages).
     "matrix": {
-        "Cython": ["3.0.5"],
+        "pip+build": [],
+        "Cython": [],
         "matplotlib": [],
         "sqlalchemy": [],
         "scipy": [],

ci/deps/actions-310-minimum_versions.yaml

@@ -8,7 +8,7 @@ dependencies:
 
   # build dependencies
   - versioneer
-  - cython>=0.29.33
+  - cython<4.0.0a0
   - meson=1.2.1
   - meson-python=0.13.1
 

ci/deps/actions-310.yaml

@@ -6,7 +6,7 @@ dependencies:
 
   # build dependencies
   - versioneer
-  - cython>=0.29.33
+  - cython<4.0.0a0
   - meson=1.2.1
   - meson-python=0.13.1
 

ci/deps/actions-311-downstream_compat.yaml

@@ -7,7 +7,7 @@ dependencies:
 
   # build dependencies
   - versioneer
-  - cython>=0.29.33
+  - cython<4.0.0a0
   - meson=1.2.1
   - meson-python=0.13.1
 

ci/deps/actions-311-numpydev.yaml

@@ -8,7 +8,7 @@ dependencies:
   - versioneer
   - meson=1.2.1
   - meson-python=0.13.1
-  - cython>=0.29.33
+  - cython<4.0.0a0
 
   # test dependencies
   - pytest>=7.3.2

ci/deps/actions-311-pyarrownightly.yaml

@@ -7,7 +7,7 @@ dependencies:
   # build dependencies
   - versioneer
   - meson=1.2.1
-  - cython>=0.29.33
+  - cython<4.0.0a0
   - meson-python=0.13.1
 
   # test dependencies

ci/deps/actions-311.yaml

@@ -6,7 +6,7 @@ dependencies:
 
   # build dependencies
   - versioneer
-  - cython>=0.29.33
+  - cython<4.0.0a0
   - meson=1.2.1
   - meson-python=0.13.1
 

ci/deps/actions-312.yaml

@@ -6,7 +6,7 @@ dependencies:
 
   # build dependencies
   - versioneer
-  - cython>=0.29.33
+  - cython<4.0.0a0
   - meson=1.2.1
   - meson-python=0.13.1
 

ci/deps/actions-pypy-39.yaml

@@ -9,7 +9,7 @@ dependencies:
 
   # build dependencies
   - versioneer
-  - cython>=0.29.33
+  - cython<4.0.0a0
   - meson=1.2.1
   - meson-python=0.13.1
 

environment.yml

@@ -8,7 +8,7 @@ dependencies:
 
   # build dependencies
   - versioneer
-  - cython=3.0.5
+  - cython<4.0.0a0
   - meson=1.2.1
   - meson-python=0.13.1