scikit-learn fails to install with python 3.7.0 on macOS 12.13.5 #11378
Comments
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Presumably a Cython limitation: cython/cython#1955. Are you using the most recent version? It seems to have been fixed in 0.27.3 |
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Yes, I have: $ pip3 list | grep -i cython
Cython 0.28.3
$and this still fails to build? |
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That's interesting... make sure that that is the actual Cython version being used to compile the files. |
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It should be using the correct cython: $ which cython
/usr/local/bin/cython
$
$ cat $(which cython)
#!/Library/Frameworks/Python.framework/Versions/3.7/bin/python3.7
# EASY-INSTALL-ENTRY-SCRIPT: 'Cython==0.28.3','console_scripts','cython'
__requires__ = 'Cython==0.28.3'
import re
import sys
from pkg_resources import load_entry_point
if __name__ == '__main__':
sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
sys.exit(
load_entry_point('Cython==0.28.3', 'console_scripts', 'cython')()
)
$ cython --version
Cython version 0.28.3
$ cython
Cython (http://cython.org) is a compiler for code written in the
Cython language. Cython is based on Pyrex by Greg Ewing.
Usage: cython [options] sourcefile.{pyx,py} ...
Options:
-V, --version Display version number of cython compiler
-l, --create-listing Write error messages to a listing file
-I, --include-dir <directory> Search for include files in named directory
(multiple include directories are allowed).
-o, --output-file <filename> Specify name of generated C file
-t, --timestamps Only compile newer source files
-f, --force Compile all source files (overrides implied -t)
-v, --verbose Be verbose, print file names on multiple compilation
-p, --embed-positions If specified, the positions in Cython files of each
function definition is embedded in its docstring.
--cleanup <level> Release interned objects on python exit, for memory debugging.
Level indicates aggressiveness, default 0 releases nothing.
-w, --working <directory> Sets the working directory for Cython (the directory modules
are searched from)
--gdb Output debug information for cygdb
--gdb-outdir <directory> Specify gdb debug information output directory. Implies --gdb.
-D, --no-docstrings Strip docstrings from the compiled module.
-a, --annotate Produce a colorized HTML version of the source.
--annotate-coverage <cov.xml> Annotate and include coverage information from cov.xml.
--line-directives Produce #line directives pointing to the .pyx source
--cplus Output a C++ rather than C file.
--embed[=<method_name>] Generate a main() function that embeds the Python interpreter.
-2 Compile based on Python-2 syntax and code semantics.
-3 Compile based on Python-3 syntax and code semantics.
--lenient Change some compile time errors to runtime errors to
improve Python compatibility
--capi-reexport-cincludes Add cincluded headers to any auto-generated header files.
--fast-fail Abort the compilation on the first error
--warning-errors, -Werror Make all warnings into errors
--warning-extra, -Wextra Enable extra warnings
-X, --directive <name>=<value>[,<name=value,...] Overrides a compiler directive
$ |
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I have the same problem - macos 10.13.5, python 3.7, cython 0.28.3, pip install scikit-learn fails. I was able to install scikit-learn-0.20.dev0 from master with pip install ., but pip install fails if I first "git checkout 0.19.1" with this error. Not sure if it is related to the problems installing scikit-learn from pypi. Error compiling Cython file: |
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Can confirm that I was getting the same error that mario-grgic posted, in a similar environment (macOS 10.12.6, just upgraded to Python 3.7.0 via Homebrew, with Cython 0.28.3). And like selasley, installing scikit-learn@master (0.20.dev0) seems to be working so far (at least, pip completes successfully, and things import at the Python REPL just fine): |
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I'm getting the same errors (same error text, while building dbscan with Cython 0.28.3) on Debian testing. Installing from master as chbrown described works with no problems, just a deprecation notice regarding |
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I'm going to close this one and leave #11320 open for Python 3.7 issues. See #11320 (comment) for my proposed roadmap. |
Attempted to install scikit-learn with python 3.7.0 ( I have Cython 0.28.3 installed):
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