I'm trying to install pylibmc on mac. mac env is osx el capitan 10.11.2. I tried pip install pylibmc. but I received following error. I already installed list below. brew install libmemcached Command Line Tools export CFLAGS=-Qunused-arguments @shell export CPPFLAGS=-Qunused-arguments @shell How can I install pylibmc?? Installing collected packages: pylibmc Running setup.py install for pylibmc Complete output from command /Users/username/.virtualenvs/django-proj/bin/python2.7 -c "import setuptools, tokenize;__file__='/private/tmp/pip-build-goDKgm/pylibmc/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-wxC5F1-record/install-record.txt --single-version-externally-managed --compile --install-headers /Users/username/.virtualenvs/django-proj/bin/../include/site/python2.7/pylibmc: running install running build running build_py creating build creating build/lib.macosx-10.11-x86_64-2.7 creating build/lib.macosx-10.11-x86_64-2.7/pylibmc copying pylibmc/__init__.py -> build/lib.macosx-10.11-x86_64-2.7/pylibmc copying pylibmc/__main__.py -> build/lib.macosx-10.11-x86_64-2.7/pylibmc copying pylibmc/client.py -> build/lib.macosx-10.11-x86_64-2.7/pylibmc copying pylibmc/consts.py -> build/lib.macosx-10.11-x86_64-2.7/pylibmc copying pylibmc/pools.py -> build/lib.macosx-10.11-x86_64-2.7/pylibmc copying pylibmc/test.py -> build/lib.macosx-10.11-x86_64-2.7/pylibmc running build_ext building '_pylibmc' extension creating build/temp.macosx-10.11-x86_64-2.7 clang -fno-strict-aliasing -fno-common -dynamic -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -DUSE_ZLIB -I/usr/local/Cellar/python/2.7.11/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c _pylibmcmodule.c -o build/temp.macosx-10.11-x86_64-2.7/_pylibmcmodule.o -fno-strict-aliasing In file included from _pylibmcmodule.c:34: ./_pylibmcmodule.h:42:10: fatal error: 'libmemcached/memcached.h' file not found #include <libmemcached/memcached.h> ^ 1 error generated. error: command 'clang' failed with exit status 1 Continue reading...