Cython 3.0.0a8 dropped support in cpdef

[matan-cohen]

• gevent version: latest From source
• Python version: python3.8
• Operating System: alpine

Description:

trying to Install gevent from source . Cython 3.0.0a8 dropped support in cpdef -
Need to change references of cpdef to cdef .
Currently fixed in my fork branch with just specifying Cython 3.0

#8 11.21   Installing build dependencies: started                                                                                                                                     
#8 26.03   Installing build dependencies: finished with status 'done'
#8 26.04   Getting requirements to build wheel: started
#8 32.14   Getting requirements to build wheel: finished with status 'error'
#8 32.14   ERROR: Command errored out with exit status 1:
#8 32.14    command: /usr/bin/python3 /usr/lib/python3.8/site-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /tmp/tmpgcqmbgst
#8 32.14        cwd: /tmp/pip-install-hlv7tbei/gevent_b3d9dac86db94fddb3d005ad2a4d967a
#8 32.14   Complete output (53 lines):
#8 32.14   Compiling src/gevent/resolver/cares.pyx because it changed.
#8 32.14   [1/1] Cythonizing src/gevent/resolver/cares.pyx
#8 32.14   Compiling src/gevent/libev/corecext.pyx because it changed.
#8 32.14   [1/1] Cythonizing src/gevent/libev/corecext.pyx
#8 32.14   Compiling src/gevent/_greenlet_primitives.py because it changed.
#8 32.14   [1/1] Cythonizing src/gevent/_greenlet_primitives.py
#8 32.14   Compiling src/gevent/_hub_primitives.py because it changed.
#8 32.14   [1/1] Cythonizing src/gevent/_hub_primitives.py
#8 32.14   Compiling src/gevent/_hub_local.py because it changed.
#8 32.14   [1/1] Cythonizing src/gevent/_hub_local.py
#8 32.14   Compiling src/gevent/_waiter.py because it changed.
#8 32.14   [1/1] Cythonizing src/gevent/_waiter.py
#8 32.14   warning: src/gevent/_gevent_cgreenlet.pxd:112:33: Declarations should not be declared inline.
#8 32.14   
#8 32.14   Error compiling Cython file:
#8 32.14   ------------------------------------------------------------
#8 32.14   ...
#8 32.14   cdef load_traceback
#8 32.14   cdef Waiter
#8 32.14   cdef wait
#8 32.14   cdef iwait
#8 32.14   cdef reraise
#8 32.14   cpdef GEVENT_CONFIG
#8 32.14        ^
#8 32.14   ------------------------------------------------------------
#8 32.14   
#8 32.14   src/gevent/_gevent_cgreenlet.pxd:182:6: Variables cannot be declared with 'cpdef'. Use 'cdef' instead.
#8 32.14   Compiling src/gevent/greenlet.py because it changed.
#8 32.14   [1/1] Cythonizing src/gevent/greenlet.py
#8 32.14   Traceback (most recent call last):
#8 32.14     File "/usr/lib/python3.8/site-packages/pip/_vendor/pep517/_in_process.py", line 280, in <module>
#8 32.14       main()
#8 32.14     File "/usr/lib/python3.8/site-packages/pip/_vendor/pep517/_in_process.py", line 263, in main
#8 32.14       json_out['return_val'] = hook(**hook_input['kwargs'])
#8 32.14     File "/usr/lib/python3.8/site-packages/pip/_vendor/pep517/_in_process.py", line 114, in get_requires_for_build_wheel
#8 32.14       return hook(config_settings)
#8 32.14     File "/tmp/pip-build-env-ty6hvg5r/overlay/lib/python3.8/site-packages/setuptools/build_meta.py", line 154, in get_requires_for_build_wheel
#8 32.14       return self._get_build_requires(
#8 32.14     File "/tmp/pip-build-env-ty6hvg5r/overlay/lib/python3.8/site-packages/setuptools/build_meta.py", line 135, in _get_build_requires
#8 32.14       self.run_setup()
#8 32.14     File "/tmp/pip-build-env-ty6hvg5r/overlay/lib/python3.8/site-packages/setuptools/build_meta.py", line 258, in run_setup
#8 32.14       super(_BuildMetaLegacyBackend,
#8 32.14     File "/tmp/pip-build-env-ty6hvg5r/overlay/lib/python3.8/site-packages/setuptools/build_meta.py", line 150, in run_setup
#8 32.14       exec(compile(code, __file__, 'exec'), locals())
#8 32.14     File "setup.py", line 294, in <module>
#8 32.14       EXT_MODULES.append(cythonize1(mod))
#8 32.14     File "/tmp/pip-install-hlv7tbei/gevent_b3d9dac86db94fddb3d005ad2a4d967a/_setuputils.py", line 237, in cythonize1
#8 32.14       new_ext = cythonize(
#8 32.14     File "/tmp/pip-build-env-ty6hvg5r/overlay/lib/python3.8/site-packages/Cython/Build/Dependencies.py", line 1116, in cythonize
#8 32.14       cythonize_one(*args)
#8 32.14     File "/tmp/pip-build-env-ty6hvg5r/overlay/lib/python3.8/site-packages/Cython/Build/Dependencies.py", line 1283, in cythonize_one
#8 32.14       raise CompileError(None, pyx_file)
#8 32.14   Cython.Compiler.Errors.CompileError: src/gevent/greenlet.py
#8 32.14   ----------------------------------------
#8 32.14 WARNING: Discarding git+git://github.com/gevent/gevent.git#egg=gevent. Command errored out with exit status 1: /usr/bin/python3 /usr/lib/python3.8/site-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /tmp/tmpgcqmbgst Check the logs for full command output.
#8 32.14 ERROR: Could not find a version that satisfies the requirement gevent (unavailable)
#8 32.14 ERROR: No matching distribution found for gevent (unavailable)