cannot build spacy from source: cythonize failed

[slonik-az]

I am trying to build spacy 0.101.0 (or git master) using latest stable cython-0.24
$ python setup.py build_ext -i -f

It results in cython error during the "cythonizing" stage of file spacy/gold.cyx:

Error compiling Cython file:

...
cdef dict __Pyx_globals = globals()
if PY_VERSION_HEX >= 0x03040000:

^

EnumType:51:18: undeclared name not builtin: PY_VERSION_HEX
Traceback (most recent call last):
File "/opt/anaconda2/bin/cython", line 6, in
sys.exit(Cython.Compiler.Main.setuptools_main())
File "/opt/anaconda2/lib/python2.7/site-packages/Cython/Compiler/Main.py", line 692, in setuptools_main
return main(command_line = 1)
File "/opt/anaconda2/lib/python2.7/site-packages/Cython/Compiler/Main.py", line 709, in main
result = compile(sources, options)
.................
Exception: Cython failed
Cythonizing sources
Traceback (most recent call last):
File "setup.py", line 225, in
setup_package()
File "setup.py", line 178, in setup_package
generate_cython(root, 'spacy')
File "setup.py", line 120, in generate_cython
raise RuntimeError('Running cythonize failed')
RuntimeError: Running cythonize failed

Thanks,
--Leo

P.S. complete traceback is attached below.
setup_build_ext-log.txt

[dbzm]

Having encountered this myself, I can tell you that it is a cython bug. Downgrading to cython 0.23.5 fixed the issue for me.

[binaryaaron]

@dbzm's solution worked for me as well; centos + anaconda3. don't forget to change directories after you build before you attempt to download spacy's model data. :)

[Deleted user]

@dbzm 's solution doesn't work for me (I'm using Cython 23.4)
does anyone else have problems?

[lock]

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