Backport PR #47150 on branch 1.4.x (DEPS: Bump Cython)

ci/deps/actions-310-numpydev.yaml

@@ -16,7 +16,7 @@ dependencies:
   - pytz
   - pip
   - pip:
-    - cython==0.29.24 # GH#34014
+    - cython==0.29.30 # GH#34014
     - "--extra-index-url https://pypi.anaconda.org/scipy-wheels-nightly/simple"
     - "--pre"
     - "numpy"

ci/deps/actions-310.yaml

@@ -5,7 +5,7 @@ dependencies:
   - python=3.10
 
   # test dependencies
-  - cython=0.29.24
+  - cython=0.29.30
   - pytest>=6.0
   - pytest-cov
   - pytest-xdist>=1.31

ci/deps/actions-38-downstream_compat.yaml

@@ -6,7 +6,7 @@ dependencies:
   - python=3.8
 
   # test dependencies
-  - cython=0.29.24
+  - cython=0.29.30
   - pytest>=6.0
   - pytest-cov
   - pytest-xdist>=1.31

ci/deps/actions-38-minimum_versions.yaml

@@ -7,7 +7,7 @@ dependencies:
   - python=3.8.0
 
   # test dependencies
-  - cython=0.29.24
+  - cython=0.29.30
   - pytest>=6.0
   - pytest-cov
   - pytest-xdist>=1.31

ci/deps/actions-38.yaml

@@ -5,7 +5,7 @@ dependencies:
   - python=3.8
 
   # test dependencies
-  - cython=0.29.24
+  - cython=0.29.30
   - pytest>=6.0
   - pytest-cov
   - pytest-xdist>=1.31

ci/deps/actions-39.yaml

@@ -5,7 +5,7 @@ dependencies:
   - python=3.9
 
   # test dependencies
-  - cython=0.29.24
+  - cython=0.29.30
   - pytest>=6.0
   - pytest-cov
   - pytest-xdist>=1.31

ci/deps/actions-pypy-38.yaml

@@ -8,7 +8,7 @@ dependencies:
   - python=3.8[build=*_pypy] # TODO: use this once pypy3.8 is available
 
   # tools
-  - cython>=0.29.24
+  - cython>=0.29.30
   - pytest>=6.0
   - pytest-cov
   - pytest-asyncio

ci/deps/circle-38-arm64.yaml

@@ -5,7 +5,7 @@ dependencies:
   - python=3.8
 
   # test dependencies
-  - cython=0.29.24
+  - cython=0.29.30
   - pytest>=6.0
   - pytest-cov
   - pytest-xdist>=1.31

doc/source/whatsnew/v1.4.3.rst

@@ -38,7 +38,7 @@ Bug fixes
 
 Other
 ~~~~~
--
+- The minimum version of Cython needed to compile pandas is now ``0.29.30`` (:issue:`41935`)
 -
 
 .. ---------------------------------------------------------------------------

environment.yml

@@ -15,7 +15,7 @@ dependencies:
   # The compiler packages are meta-packages and install the correct compiler (activation) packages on the respective platforms.
   - c-compiler
   - cxx-compiler
-  - cython>=0.29.24
+  - cython>=0.29.30
 
   # code checks
   - black=22.3.0

requirements-dev.txt

@@ -5,7 +5,7 @@ numpy>=1.18.5
 python-dateutil>=2.8.1
 pytz
 asv
-cython>=0.29.24
+cython>=0.29.30
 black==22.3.0
 cpplint
 flake8==4.0.1

setup.py

@@ -38,7 +38,7 @@ def is_platform_mac():
 
 
 # note: sync with pyproject.toml, environment.yml and asv.conf.json
-min_cython_ver = "0.29.24"
+min_cython_ver = "0.29.30"
 
 try:
     from Cython import (