在OSX上安装pip cffi包失败

Question

在OSX上安装pip cffi包失败

pythonmacospippython-cffi

27

我正在为加密和Jasmin安装安装cffi包。

在发布问题之前，我进行了一些研究，因此找到了以下选项，但似乎不起作用：

系统

Mac OSx 10.9.5

python2.7

错误

c/_cffi_backend.c:13:10: fatal error: 'ffi.h' file not found

#include <ffi.h>

         ^

1 warning and 1 error generated.

请帮我解决以下问题。

谢谢

命令

env DYLD_LIBRARY_PATH=/usr/local/opt/openssl/lib/ ARCHFLAGS="-Wno-error=unused-command-line-argument-hard-error-in-future" LDFLAGS="-L/usr/local/opt/openssl/lib" CFLAGS="-I/usr/local/opt/openssl/include" sudo -E pip install cffi

日志

bhushanvaiude$ env DYLD_LIBRARY_PATH=/usr/local/opt/openssl/lib/ ARCHFLAGS="-Wno-error=unused-command-line-argument-hard-error-in-future" LDFLAGS="-L/usr/local/opt/openssl/lib" CFLAGS="-I/usr/local/opt/openssl/include" sudo -E pip install cffi
Password:
Downloading/unpacking cffi
  Downloading cffi-0.8.6.tar.gz (196kB): 196kB downloaded
  Running setup.py egg_info for package cffi
    warning: unknown warning option '-Werror=unused-command-line-argument-hard-error-in-future'; did you mean '-Werror=unused-command-line-argument'? [-Wunknown-warning-option]
    1 warning generated.
    
Downloading/unpacking pycparser (from cffi)
  Downloading pycparser-2.10.tar.gz (206kB): 206kB downloaded
  Running setup.py egg_info for package pycparser
    
Installing collected packages: cffi, pycparser
  Running setup.py install for cffi
    warning: unknown warning option '-Werror=unused-command-line-argument-hard-error-in-future'; did you mean '-Werror=unused-command-line-argument'? [-Wunknown-warning-option]
    1 warning generated.
    building '_cffi_backend' extension
    cc -DNDEBUG -g -fwrapv -Os -Wall -Wstrict-prototypes -I/usr/local/opt/openssl/include -Qunused-arguments -pipe -Wno-error=unused-command-line-argument-hard-error-in-future -DUSE__THREAD -I@@HOMEBREW_CELLAR@@/libffi/3.0.13/lib/libffi-3.0.13/include -I/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c c/_cffi_backend.c -o build/temp.macosx-10.9-intel-2.7/c/_cffi_backend.o
    warning: unknown warning option '-Werror=unused-command-line-argument-hard-error-in-future'; did you mean '-Werror=unused-command-line-argument'? [-Wunknown-warning-option]
    c/_cffi_backend.c:13:10: fatal error: 'ffi.h' file not found
    #include <ffi.h>
             ^
    1 warning and 1 error generated.
    error: command 'cc' failed with exit status 1
    Complete output from command /Users/****project path***/bin/python -c "import setuptools;__file__='/Users/****project path***/build/cffi/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/7w/8z_mn3g120n34bv0w780gnd00000gn/T/pip-e6d6Ay-record/install-record.txt --single-version-externally-managed --install-headers /Users/****project path***/include/site/python2.7:
    warning: unknown warning option '-Werror=unused-command-line-argument-hard-error-in-future'; did you mean '-Werror=unused-command-line-argument'? [-Wunknown-warning-option]

1 warning generated.

running install

running build

running build_py

creating build

creating build/lib.macosx-10.9-intel-2.7

creating build/lib.macosx-10.9-intel-2.7/cffi

copying cffi/__init__.py -> build/lib.macosx-10.9-intel-2.7/cffi

copying cffi/api.py -> build/lib.macosx-10.9-intel-2.7/cffi

copying cffi/backend_ctypes.py -> build/lib.macosx-10.9-intel-2.7/cffi

copying cffi/commontypes.py -> build/lib.macosx-10.9-intel-2.7/cffi

copying cffi/cparser.py -> build/lib.macosx-10.9-intel-2.7/cffi

copying cffi/ffiplatform.py -> build/lib.macosx-10.9-intel-2.7/cffi

copying cffi/gc_weakref.py -> build/lib.macosx-10.9-intel-2.7/cffi

copying cffi/lock.py -> build/lib.macosx-10.9-intel-2.7/cffi

copying cffi/model.py -> build/lib.macosx-10.9-intel-2.7/cffi

copying cffi/vengine_cpy.py -> build/lib.macosx-10.9-intel-2.7/cffi

copying cffi/vengine_gen.py -> build/lib.macosx-10.9-intel-2.7/cffi

copying cffi/verifier.py -> build/lib.macosx-10.9-intel-2.7/cffi

running build_ext

building '_cffi_backend' extension

creating build/temp.macosx-10.9-intel-2.7

creating build/temp.macosx-10.9-intel-2.7/c

cc -DNDEBUG -g -fwrapv -Os -Wall -Wstrict-prototypes -I/usr/local/opt/openssl/include -Qunused-arguments -pipe -Wno-error=unused-command-line-argument-hard-error-in-future -DUSE__THREAD -I@@HOMEBREW_CELLAR@@/libffi/3.0.13/lib/libffi-3.0.13/include -I/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c c/_cffi_backend.c -o build/temp.macosx-10.9-intel-2.7/c/_cffi_backend.o

warning: unknown warning option '-Werror=unused-command-line-argument-hard-error-in-future'; did you mean '-Werror=unused-command-line-argument'? [-Wunknown-warning-option]

c/_cffi_backend.c:13:10: fatal error: 'ffi.h' file not found

#include <ffi.h>

         ^

1 warning and 1 error generated.

error: command 'cc' failed with exit status 1

----------------------------------------
Cleaning up...

- bhushya

可能是[在OS X上使用pip安装bcrypt时出现错误：找不到ffi.h（已安装libffi）]的重复问题（https://dev59.com/mmAh5IYBdhLWcg3wDfoW） - Armin Rigo

得到了相同的错误，尝试了https://dev59.com/mmAh5IYBdhLWcg3wDfoW -> 对我没有用。 - fetzig

3个回答

25

安装CLI开发工具链的命令为：

使用以下命令进行安装

$ xcode-select --install

如果您的 pkg-config 出现问题，请按照评论中提到的以下命令取消链接。

$ brew unlink pkg-config

安装libffi包

$ brew install pkg-config libffi

然后安装cffi

$ pip install cffi

来源：在OS X上使用pip安装bcrypt时出错：找不到ffi.h（已安装libffi）

- Chillar Anand

1

你值得敬佩，我的朋友！ - nehem

1

我首先需要运行命令 "brew unlink pkg-config"，然后按照您的指示操作，现在它很好地工作了。 - aris

1

brew install pkg-config libffi 然后 pip install cffi 就足够了。谢谢！ - Benjamin Castor

-3

在终端中运行以下命令解决了我的问题。

xcode-select --install

- ravgopal

网页内容由stack overflow 提供, 点击上面的

可以查看英文原文，
原文链接

- Yariv Katz · Accepted Answer

在您的终端中尝试运行：

xcode-select --install

然后尝试重新安装该软件包。

默认情况下，XCode作为IDE进行安装，但不设置环境供命令行工具使用；例如，/usr/include文件夹将会缺失。

运行上述命令将安装运行编译所需的工具，并创建必要的符号链接。由于Python软件包使用XCode的命令行界面来编译本地代码部分，因此需要执行此步骤以安装包含本地组件的Python软件包。

每次安装/升级XCode时只需要执行一次，或者如果遇到类似错误时才需要执行。