Scikit-learn and pandas in Sage 7.2

Question

我试图将Scikit-learn和Pandas放入Sage 7.2（在El Capitan上）。我在Sage 6.6中成功完成了此操作。但是，当我输入/Applications/SageMath-7.2.app/Contents/Resources/sage/sage --pip install scikit-learn（pandas的结果相同）时，我会收到以下错误消息。

creating build/temp.macosx-10.9-x86_64-2.7
creating build/temp.macosx-10.9-x86_64-2.7/sklearn
creating build/temp.macosx-10.9-x86_64-2.7/sklearn/svm
creating build/temp.macosx-10.9-x86_64-2.7/sklearn/svm/src
creating build/temp.macosx-10.9-x86_64-2.7/sklearn/svm/src/libsvm
compile options: '-I/Applications/SageMath-7.2.app/Contents/Resources/sage/local/lib/python2.7/site-packages/numpy-1.11.0-py2.7-macosx-10.9-x86_64.egg/numpy/core/include -c'
g++: sklearn/svm/src/libsvm/libsvm_template.cpp
In file included from sklearn/svm/src/libsvm/svm.cpp:53:0,
                 from sklearn/svm/src/libsvm/libsvm_template.cpp:6:
/Applications/SageMath-7.2.app/Contents/Resources/sage/local/lib/gcc/x86_64-apple-darwin15.4.0/4.9.3/include-fixed/math.h:45:23: fatal error: sys/cdefs.h: No such file or directory
 #include <sys/cdefs.h>
                       ^
compilation terminated.
In file included from sklearn/svm/src/libsvm/svm.cpp:53:0,
                 from sklearn/svm/src/libsvm/libsvm_template.cpp:6:
/Applications/SageMath-7.2.app/Contents/Resources/sage/local/lib/gcc/x86_64-apple-darwin15.4.0/4.9.3/include-fixed/math.h:45:23: fatal error: sys/cdefs.h: No such file or directory
 #include <sys/cdefs.h>
                       ^
compilation terminated.
error: Command "g++ -fno-strict-aliasing -I/Applications/SageMath-7.2.app/Contents/Resources/sage/local/var/tmp/sage/build/python2-2.7.10.p1/include -DNDEBUG -g -fwrapv -O3 -Wall -Wno-unused -I/Applications/SageMath-7.2.app/Contents/Resources/sage/local/lib/python2.7/site-packages/numpy-1.11.0-py2.7-macosx-10.9-x86_64.egg/numpy/core/include -c sklearn/svm/src/libsvm/libsvm_template.cpp -o build/temp.macosx-10.9-x86_64-2.7/sklearn/svm/src/libsvm/libsvm_template.o" failed with exit status 1
----------------------------------------
Command failed with error code 1

我一直找不到任何方法。我唯一能想到的问题是安装说明是指macosx-10.9，但El Capitan是10.11。所以也许是问题？

Answer 1

您的问题是Note No such file or directory。我建议您安装命令行工具，甚至XCode。您是否按以下顺序做事？

1. 安装鼠尾草
2. 在某个时候，升级您的Mac OS
3. 升级您的圣人
4. 尝试安装熊猫等。

如果是这样，这可能是问题所在。我刚刚升级了Mac，不得不重新安装命令行工具，然后才能识别它。幸运的是，如今这不是很难 - 打开终端并尝试使用gcc或其他东西，并且它应该提示您，尽管您的里程可能会有所不同。

那么您的命令应该正常工作，对我有用。