在 Mac OS X 10.8.5 上安装 Numpy 和 matplotlib 时，在安装 matplotlib 时，出现错误：
gcc -fno-strict-aliasing -fno-common -dynamic -arch i386 -arch x86_64 -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -DPY_ARRAY_UNIQUE_SYMBOL=MPL_ARRAY_API -DPYCXX_ISO_CPP_LIB=1 -I/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/include -I. -I/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/include -Isrc -Iagg24/include -I. -I/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/include -I/opt/local/include/freetype2 -I/opt/local/include -I. -I/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c CXX/IndirectPythonInterface.cxx -o build/temp.macosx-10.5-intel-2.7/CXX/IndirectPythonInterface.o
gcc -fno-strict-aliasing -fno-common -dynamic -arch i386 -arch x86_64 -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -DPY_ARRAY_UNIQUE_SYMBOL=MPL_ARRAY_API -DPYCXX_ISO_CPP_LIB=1 -I/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/include -I. -I/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/include -Isrc -Iagg24/include -I. -I/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/include -I/opt/local/include/freetype2 -I/opt/local/include -I. -I/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c CXX/cxxextensions.c -o build/temp.macosx-10.5-intel-2.7/CXX/cxxextensions.o
gcc -fno-strict-aliasing -fno-common -dynamic -arch i386 -arch x86_64 -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -DPY_ARRAY_UNIQUE_SYMBOL=MPL_ARRAY_API -DPYCXX_ISO_CPP_LIB=1 -I/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/include -I. -I/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/include -Isrc -Iagg24/include -I. -I/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/include -I/opt/local/include/freetype2 -I/opt/local/include -I. -I/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c src/backend_agg.cpp -o build/temp.macosx-10.5-intel-2.7/src/backend_agg.o
In file included from src/backend_agg.cpp:9:
In file included from src/_backend_agg.h:32:
agg24/include/agg_renderer_outline_aa.h:1368:45: error: binding of reference to type 'agg::line_profile_aa' to a value of type 'const agg::line_profile_aa' drops qualifiers
line_profile_aa& profile() { return *m_profile; }
^~~~~~~~~~
1 error generated.
error: command 'gcc' failed with exit status 1
2、解决方案
可以通过以下步骤来解决此问题：
-
更新 XCode。
-
使用 Homebrew 安装 Numpy 和 matplotlib。在终端中运行以下命令：
brew install numpy brew install matplotlib -
在终端中运行以下命令来验证 Numpy 和 matplotlib 是否已正确安装：
python -c "import numpy; print(numpy.__version__)" python -c "import matplotlib; print(matplotlib.__version__)" -
如果在步骤 3 中没有出现任何错误，则 Numpy 和 matplotlib 已成功安装。
