我公司的网络正在使用代理.因此,当我使用vagrant up它时,它向我显示了401权限错误.

如何使用vagrant做一些设置？

我的ubuntu是14.04 LTS.

当我安装加密时,错误是:

Installing egg-scripts.
uses namespace packages but the distribution does not require setuptools.
Getting distribution for 'cryptography==0.2.1'.

no previously-included directories found matching 'documentation/_build'
zip_safe flag not set; analyzing archive contents...
six: module references __path__

Installed /tmp/easy_install-oUz7ei/cryptography-0.2.1/.eggs/six-1.10.0-py2.7.egg
Searching for cffi>=0.8
Reading https://pypi.python.org/simple/cffi/
Best match: cffi 1.5.0
Downloading https://pypi.python.org/packages/source/c/cffi/cffi-1.5.0.tar.gz#md5=dec8441e67880494ee881305059af656
Processing cffi-1.5.0.tar.gz
Writing /tmp/easy_install-oUz7ei/cryptography-0.2.1/temp/easy_install-Yf2Yl3/cffi-1.5.0/setup.cfg
Running cffi-1.5.0/setup.py -q bdist_egg --dist-dir /tmp/easy_install-oUz7ei/cryptography-0.2.1/temp/easy_install-Yf2Yl3/cffi-1.5.0/egg-dist-tmp-A2kjMD
c/_cffi_backend.c:15:17: fatal error: ffi.h: No such file or directory
 #include <ffi.h>
                 ^
compilation terminated.
error: Setup script exited with error: command …

当我在Mac上运行python应用程序时，它显示了许多有关希望“ Python.app”接受传入网络连接的对话框。

即使我允许多次，它也会一次又一次地显示。

如何让它一次又不显示呢？

编辑

我发现了这个问题： 将Python添加到OS X防火墙选项吗？

我按照公认的答案去做，但是最后我跑步codesign -s "My Signing Identity" -f $(which python)时说：

/usr/bin/python: replacing existing signature
error: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/codesign_allocate: can't create output file: /usr/bin/python.cstemp (Operation not permitted)
/usr/bin/python: the codesign_allocate helper tool cannot be found or used

下一步怎么办？

我的操作系统：Mac OS X El Capitan

当我这样安装密码时：

pip install cryptography==0.2.1

错误是：

Collecting cryptography==0.2.1
  Using cached cryptography-0.2.1.tar.gz
    Complete output from command python setup.py egg_info:
    no previously-included directories found matching 'documentation/_build'
    zip_safe flag not set; analyzing archive contents...
    six: module references __path__

    Installed /private/var/folders/48/lrr_y58s4rq70qdnjcvqc8l8j2g31b/T/pip-build-zGO9s0/cryptography/.eggs/six-1.10.0-py2.7.egg
    Searching for cffi>=0.8
    Reading https://pypi.python.org/simple/cffi/
    Best match: cffi 1.5.0
    Downloading https://pypi.python.org/packages/source/c/cffi/cffi-1.5.0.tar.gz#md5=dec8441e67880494ee881305059af656
    Processing cffi-1.5.0.tar.gz
    Writing /var/folders/48/lrr_y58s4rq70qdnjcvqc8l8j2g31b/T/easy_install-ZAtQYR/cffi-1.5.0/setup.cfg
    Running cffi-1.5.0/setup.py -q bdist_egg --dist-dir /var/folders/48/lrr_y58s4rq70qdnjcvqc8l8j2g31b/T/easy_install-ZAtQYR/cffi-1.5.0/egg-dist-tmp-Dl08xt
    creating /private/var/folders/48/lrr_y58s4rq70qdnjcvqc8l8j2g31b/T/pip-build-zGO9s0/cryptography/.eggs/cffi-1.5.0-py2.7-macosx-10.11-x86_64.egg
    Extracting cffi-1.5.0-py2.7-macosx-10.11-x86_64.egg to /private/var/folders/48/lrr_y58s4rq70qdnjcvqc8l8j2g31b/T/pip-build-zGO9s0/cryptography/.eggs

    Installed /private/var/folders/48/lrr_y58s4rq70qdnjcvqc8l8j2g31b/T/pip-build-zGO9s0/cryptography/.eggs/cffi-1.5.0-py2.7-macosx-10.11-x86_64.egg
    Searching for pycparser
    Reading https://pypi.python.org/simple/pycparser/
    Best match: pycparser 2.14
    Downloading …