<div dir="ltr"><div>Hi,</div><div>scikit-learn 0.21.3 fails to build on my system (Slackware 14.2, 64 bits). I tried to rebuild the deps, but it still failing. The build errors are below.<br></div><div>Did I miss something?<br></div><div><br></div><div><br></div><div>---------------------------<br></div><div>sklearn/utils/_cython_blas.pyx:203:43: Converting to Python object not allowed without gil<br>Traceback (most recent call last):<br>  File "setup.py", line 290, in <module><br>Compiling sklearn/utils/sparsefuncs_fast.pyx because it changed.<br>Compiling sklearn/utils/_cython_blas.pyx because it changed.<br>Compiling sklearn/utils/arrayfuncs.pyx because it changed.<br>Compiling sklearn/utils/murmurhash.pyx because it changed.<br>Compiling sklearn/utils/lgamma.pyx because it changed.<br>Compiling sklearn/utils/graph_shortest_path.pyx because it changed.<br>Compiling sklearn/utils/fast_dict.pyx because it changed.<br>Compiling sklearn/utils/seq_dataset.pyx because it changed.<br>Compiling sklearn/utils/weight_vector.pyx because it changed.<br>Compiling sklearn/utils/_random.pyx because it changed.<br>Compiling sklearn/utils/_logistic_sigmoid.pyx because it changed.<br>[ 1/11] Cythonizing sklearn/utils/_cython_blas.pyx<br>    setup_package()<br>  File "setup.py", line 286, in setup_package<br>    setup(**metadata)<br>  File "/usr/lib64/python3.7/site-packages/numpy/distutils/core.py", line 135, in setup<br>    config = configuration()<br>  File "setup.py", line 174, in configuration<br>    config.add_subpackage('sklearn')<br>  File "/usr/lib64/python3.7/site-packages/numpy/distutils/misc_util.py", line 1024, in add_subpackage<br>    caller_level = 2)<br>  File "/usr/lib64/python3.7/site-packages/numpy/distutils/misc_util.py", line 993, in get_subpackage<br>    caller_level = caller_level + 1)<br>  File "/usr/lib64/python3.7/site-packages/numpy/distutils/misc_util.py", line 930, in _get_configuration_from_setup_py<br>    config = setup_module.configuration(*args)<br>  File "sklearn/setup.py", line 76, in configuration<br>    maybe_cythonize_extensions(top_path, config)<br>  File "/tmp/SBo/scikit-learn-0.21.3/sklearn/_build_utils/__init__.py", line 66, in maybe_cythonize_extensions<br>    compiler_directives={'language_level': 3})<br>  File "/usr/lib64/python3.7/site-packages/Cython/Build/Dependencies.py", line 1097, in cythonize<br>    cythonize_one(*args)<br>  File "/usr/lib64/python3.7/site-packages/Cython/Build/Dependencies.py", line 1220, in cythonize_one<br>    raise CompileError(None, pyx_file)<br>Cython.Compiler.Errors.CompileError: sklearn/utils/_cython_blas.pyx<br>Failures:<br>  scikit-learn: scikit-learn.SlackBuild return non-zero<br>bash-4.3# <br></div><br>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Fellype<br><br></div></div></div>