pip install pylibmc 失败方案error: command ‘clang‘ faile error command ‘clang‘ failed with exit status 1

pip install pylibmc 安装失败，及其解决方案。安装的时候，报出如下的错误，可能还有其他的错误，类似于如下所示：

pip install pylibmc==1.6.1
Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple
Collecting pylibmc==1.6.1
  Using cached https://pypi.tuna.tsinghua.edu.cn/packages/a7/0c/f7a3af34b05c167a69ed1fc330b06b658dac4ab25b8632c52d1022dd5337/pylibmc-1.6.1.tar.gz (64 kB)
Building wheels for collected packages: pylibmc
  Building wheel for pylibmc (setup.py) ... error
  ERROR: Command errored out with exit status 1:
   command: /Users/yangchangjia/PycharmProjects/Nox/venv/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/x7/zprpyfhx3h3g5qs3c_z_gxqc0000gn/T/pip-install-14fh8zn_/pylibmc/setup.py'"'"'; __file__='"'"'/private/var/folders/x7/zprpyfhx3h3g5qs3c_z_gxqc0000gn/T/pip-install-14fh8zn_/pylibmc/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /private/var/folders/x7/zprpyfhx3h3g5qs3c_z_gxqc0000gn/T/pip-wheel-73t1n0ft
       cwd: /private/var/folders/x7/zprpyfhx3h3g5qs3c_z_gxqc0000gn/T/pip-install-14fh8zn_/pylibmc/
  Complete output (28 lines):
  /private/var/folders/x7/zprpyfhx3h3g5qs3c_z_gxqc0000gn/T/pip-install-14fh8zn_/pylibmc/setup.py:98: DeprecationWarning: 'U' mode is deprecated
    with open("README.rst", "U", encoding="utf-8") as r:
  /private/var/folders/x7/zprpyfhx3h3g5qs3c_z_gxqc0000gn/T/pip-install-14fh8zn_/pylibmc/setup.py:100: DeprecationWarning: 'U' mode is deprecated
    with open("src/pylibmc-version.h", "U", encoding="utf-8") as r:
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.macosx-10.15-x86_64-3.8
  creating build/lib.macosx-10.15-x86_64-3.8/pylibmc
  copying src/pylibmc/autoconf.py -> build/lib.macosx-10.15-x86_64-3.8/pylibmc
  copying src/pylibmc/pools.py -> build/lib.macosx-10.15-x86_64-3.8/pylibmc
  copying src/pylibmc/client.py -> build/lib.macosx-10.15-x86_64-3.8/pylibmc
  copying src/pylibmc/__init__.py -> build/lib.macosx-10.15-x86_64-3.8/pylibmc
  copying src/pylibmc/test.py -> build/lib.macosx-10.15-x86_64-3.8/pylibmc
  copying src/pylibmc/consts.py -> build/lib.macosx-10.15-x86_64-3.8/pylibmc
  copying src/pylibmc/__main__.py -> build/lib.macosx-10.15-x86_64-3.8/pylibmc
  running build_ext
  building '_pylibmc' extension
  creating build/temp.macosx-10.15-x86_64-3.8
  creating build/temp.macosx-10.15-x86_64-3.8/src
  clang -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -I/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include -I/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include -DUSE_ZLIB -I/Users/yangchangjia/PycharmProjects/Nox/venv/include -I/Users/yangchangjia/.pyenv/versions/3.8.6/include/python3.8 -c src/_pylibmcmodule.c -o build/temp.macosx-10.15-x86_64-3.8/src/_pylibmcmodule.o -fno-strict-aliasing -std=c99
  In file included from src/_pylibmcmodule.c:34:
  src/_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
  ----------------------------------------
  ERROR: Failed building wheel for pylibmc
  Running setup.py clean for pylibmc
Failed to build pylibmc
Installing collected packages: pylibmc
    Running setup.py install for pylibmc ... error
    ERROR: Command errored out with exit status 1:
     command: /Users/yangchangjia/PycharmProjects/Nox/venv/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/x7/zprpyfhx3h3g5qs3c_z_gxqc0000gn/T/pip-install-14fh8zn_/pylibmc/setup.py'"'"'; __file__='"'"'/private/var/folders/x7/zprpyfhx3h3g5qs3c_z_gxqc0000gn/T/pip-install-14fh8zn_/pylibmc/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/x7/zprpyfhx3h3g5qs3c_z_gxqc0000gn/T/pip-record-tox14kc6/install-record.txt --single-version-externally-managed --compile --install-headers /Users/yangchangjia/PycharmProjects/Nox/venv/include/site/python3.8/pylibmc
         cwd: /private/var/folders/x7/zprpyfhx3h3g5qs3c_z_gxqc0000gn/T/pip-install-14fh8zn_/pylibmc/
    Complete output (28 lines):
    /private/var/folders/x7/zprpyfhx3h3g5qs3c_z_gxqc0000gn/T/pip-install-14fh8zn_/pylibmc/setup.py:98: DeprecationWarning: 'U' mode is deprecated
      with open("README.rst", "U", encoding="utf-8") as r:
    /private/var/folders/x7/zprpyfhx3h3g5qs3c_z_gxqc0000gn/T/pip-install-14fh8zn_/pylibmc/setup.py:100: DeprecationWarning: 'U' mode is deprecated
      with open("src/pylibmc-version.h", "U", encoding="utf-8") as r:
    running install
    running build
    running build_py
    creating build
    creating build/lib.macosx-10.15-x86_64-3.8
    creating build/lib.macosx-10.15-x86_64-3.8/pylibmc
    copying src/pylibmc/autoconf.py -> build/lib.macosx-10.15-x86_64-3.8/pylibmc
    copying src/pylibmc/pools.py -> build/lib.macosx-10.15-x86_64-3.8/pylibmc
    copying src/pylibmc/client.py -> build/lib.macosx-10.15-x86_64-3.8/pylibmc
    copying src/pylibmc/__init__.py -> build/lib.macosx-10.15-x86_64-3.8/pylibmc
    copying src/pylibmc/test.py -> build/lib.macosx-10.15-x86_64-3.8/pylibmc
    copying src/pylibmc/consts.py -> build/lib.macosx-10.15-x86_64-3.8/pylibmc
    copying src/pylibmc/__main__.py -> build/lib.macosx-10.15-x86_64-3.8/pylibmc
    running build_ext
    building '_pylibmc' extension
    creating build/temp.macosx-10.15-x86_64-3.8
    creating build/temp.macosx-10.15-x86_64-3.8/src
    clang -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -I/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include -I/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include -DUSE_ZLIB -I/Users/yangchangjia/PycharmProjects/Nox/venv/include -I/Users/yangchangjia/.pyenv/versions/3.8.6/include/python3.8 -c src/_pylibmcmodule.c -o build/temp.macosx-10.15-x86_64-3.8/src/_pylibmcmodule.o -fno-strict-aliasing -std=c99
    In file included from src/_pylibmcmodule.c:34:
    src/_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
    ----------------------------------------
ERROR: Command errored out with exit status 1: /Users/yangchangjia/PycharmProjects/Nox/venv/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/x7/zprpyfhx3h3g5qs3c_z_gxqc0000gn/T/pip-install-14fh8zn_/pylibmc/setup.py'"'"'; __file__='"'"'/private/var/folders/x7/zprpyfhx3h3g5qs3c_z_gxqc0000gn/T/pip-install-14fh8zn_/pylibmc/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/x7/zprpyfhx3h3g5qs3c_z_gxqc0000gn/T/pip-record-tox14kc6/install-record.txt --single-version-externally-managed --compile --install-headers /Users/yangchangjia/PycharmProjects/Nox/venv/include/site/python3.8/pylibmc Check the logs for full command output.

解决方案：

brew install libmemcached
pip install wheel
pip install pylibmc

安装成功：

pip install pylibmc
Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple
Collecting pylibmc
  Using cached https://pypi.tuna.tsinghua.edu.cn/packages/a7/0c/f7a3af34b05c167a69ed1fc330b06b658dac4ab25b8632c52d1022dd5337/pylibmc-1.6.1.tar.gz (64 kB)
Building wheels for collected packages: pylibmc
  Building wheel for pylibmc (setup.py) ... done
  Created wheel for pylibmc: filename=pylibmc-1.6.1-cp38-cp38-macosx_10_15_x86_64.whl size=33323 sha256=9a8ecb4933b8a455b7ffe9db042011f3a9865c18441b8e5204d843bc0e6da1a3
  Stored in directory: /Users/yangchangjia/Library/Caches/pip/wheels/a1/8e/7e/d1b6684901c01de15a45efb8b5172c1dc7b9c6a7386d369839
Successfully built pylibmc
Installing collected packages: pylibmc
Successfully installed pylibmc-1.6.1