本文介绍了Ansible 2.x安装由于paramiko 2.0依赖项更改而失败的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
由于paramiko 2.0将其依赖性从pycrypto更改为加密，因此无法通过pip安装最新的Ansible.密码学依赖于cffi，这需要libffi-dev.有谁知道如何解决这一问题? (Ubuntu Trusty 14.04)
Installing the latest Ansible via pip fails due to paramiko 2.0 changing their dependency from pycrypto to cryptography. Cryptography has a dependency on cffi, which requires libffi-dev. Does anyone know how to fix this? (Ubuntu Trusty 14.04)
RUN pip install --upgrade ansible
---> Running in 8ef89649c480
Collecting ansible
/usr/local/lib/python2.7/dist-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:318: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#snimissingwarning.
SNIMissingWarning
/usr/local/lib/python2.7/dist-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
InsecurePlatformWarning
Downloading ansible-2.0.2.0.tar.gz (1.5MB)
Collecting paramiko (from ansible)
Downloading paramiko-2.0.0-py2.py3-none-any.whl (170kB)
Collecting jinja2 (from ansible)
Downloading Jinja2-2.8-py2.py3-none-any.whl (263kB)
Collecting PyYAML (from ansible)
Downloading PyYAML-3.11.zip (371kB)
Collecting setuptools (from ansible)
Downloading setuptools-21.2.1-py2.py3-none-any.whl (509kB)
Collecting pycrypto>=2.6 (from ansible)
Downloading pycrypto-2.6.1.tar.gz (446kB)
Collecting cryptography>=1.1 (from paramiko->ansible)
Downloading cryptography-1.3.2.tar.gz (383kB)
Collecting pyasn1>=0.1.7 (from paramiko->ansible)
Downloading pyasn1-0.1.9-py2.py3-none-any.whl
Collecting MarkupSafe (from jinja2->ansible)
Downloading MarkupSafe-0.23.tar.gz
Collecting idna>=2.0 (from cryptography>=1.1->paramiko->ansible)
Downloading idna-2.1-py2.py3-none-any.whl (54kB)
Collecting six>=1.4.1 (from cryptography>=1.1->paramiko->ansible)
Downloading six-1.10.0-py2.py3-none-any.whl
Collecting enum34 (from cryptography>=1.1->paramiko->ansible)
Downloading enum34-1.1.6-py2-none-any.whl
Collecting ipaddress (from cryptography>=1.1->paramiko->ansible)
Downloading ipaddress-1.0.16-py27-none-any.whl
Collecting cffi>=1.4.1 (from cryptography>=1.1->paramiko->ansible)
Downloading cffi-1.6.0.tar.gz (397kB)
Collecting pycparser (from cffi>=1.4.1->cryptography>=1.1->paramiko->ansible)
Downloading pycparser-2.14.tar.gz (223kB)
Building wheels for collected packages: ansible, PyYAML, pycrypto, cryptography, MarkupSafe, cffi, pycparser
Running setup.py bdist_wheel for ansible: started
Running setup.py bdist_wheel for ansible: finished with status 'done'
Stored in directory: /root/.cache/pip/wheels/7a/56/e4/5dbcf0564a8cad5175b8c85bb123fdc81ad48bd31d27ac6011
Running setup.py bdist_wheel for PyYAML: started
Running setup.py bdist_wheel for PyYAML: finished with status 'done'
Stored in directory: /root/.cache/pip/wheels/4a/bf/14/d79994d19a59d4f73efdafb8682961f582d45ed6b459420346
Running setup.py bdist_wheel for pycrypto: started
Running setup.py bdist_wheel for pycrypto: finished with status 'done'
Stored in directory: /root/.cache/pip/wheels/80/1f/94/f76e9746864f198eb0e304aeec319159fa41b082f61281ffce
Running setup.py bdist_wheel for cryptography: started
Running setup.py bdist_wheel for cryptography: finished with status 'error'
Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-U7yVav/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" bdist_wheel -d /tmp/tmpQA7GLCpip-wheel- --python-tag cp27:
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
c/_cffi_backend.c:15:17: fatal error: ffi.h: No such file or directory
#include <ffi.h>
^
compilation terminated.
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/tmp/pip-build-U7yVav/cryptography/setup.py", line 335, in <module>
**keywords_with_side_effects(sys.argv)
File "/usr/lib/python2.7/distutils/core.py", line 111, in setup
_setup_distribution = dist = klass(attrs)
File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 239, in __init__
self.fetch_build_eggs(attrs.pop('setup_requires'))
File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 264, in fetch_build_eggs
replace_conflicting=True
File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 620, in resolve
dist = best[req.key] = env.best_match(req, ws, installer)
File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 858, in best_match
return self.obtain(req, installer) # try and download/install
File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 870, in obtain
return installer(requirement)
File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 314, in fetch_build_egg
return cmd.easy_install(req)
File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 616, in easy_install
return self.install_item(spec, dist.location, tmpdir, deps)
File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 646, in install_item
dists = self.install_eggs(spec, download, tmpdir)
File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 834, in install_eggs
return self.build_and_install(setup_script, setup_base)
File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 1040, in build_and_install
self.run_setup(setup_script, setup_base, args)
File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 1028, in run_setup
raise DistutilsError("Setup script exited with %s" % (v.args[0],))
distutils.errors.DistutilsError: Setup script exited with error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
----------------------------------------
Failed building wheel for cryptography
Running setup.py clean for cryptography
Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-U7yVav/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" clean --all:
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
c/_cffi_backend.c:15:17: fatal error: ffi.h: No such file or directory
#include <ffi.h>
^
compilation terminated.
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/tmp/pip-build-U7yVav/cryptography/setup.py", line 335, in <module>
**keywords_with_side_effects(sys.argv)
File "/usr/lib/python2.7/distutils/core.py", line 111, in setup
_setup_distribution = dist = klass(attrs)
File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 239, in __init__
self.fetch_build_eggs(attrs.pop('setup_requires'))
File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 264, in fetch_build_eggs
replace_conflicting=True
File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 620, in resolve
dist = best[req.key] = env.best_match(req, ws, installer)
File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 858, in best_match
return self.obtain(req, installer) # try and download/install
File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 870, in obtain
return installer(requirement)
File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 314, in fetch_build_egg
return cmd.easy_install(req)
File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 616, in easy_install
return self.install_item(spec, dist.location, tmpdir, deps)
File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 646, in install_item
dists = self.install_eggs(spec, download, tmpdir)
File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 834, in install_eggs
return self.build_and_install(setup_script, setup_base)
File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 1040, in build_and_install
self.run_setup(setup_script, setup_base, args)
File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 1028, in run_setup
raise DistutilsError("Setup script exited with %s" % (v.args[0],))
distutils.errors.DistutilsError: Setup script exited with error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
推荐答案
要从pip安装cryptography >= 1.1，您需要安装libffi的开发人员软件包，因为它将包含缺少的头文件.由于您标记了Ubuntu，所以我假设您正在使用apt程序包管理器.
To install cryptography >= 1.1 from pip, you need to install the developer package for libffi since it will contain the missing header file. Since you tagged Ubuntu, I am assuming you are using the apt package manager.
apt-get install libffi-dev
您还需要发行版的等效于ssl的开发包，以及gcc的cryptography >= 1.1.如果您是在系统环境中运行此程序，则几乎可以肯定已经安装了gcc，但是如果缺少，可能还需要apt-get install libssl-dev.
You will also need your distro's equivalent of ssl's development package and gcc for cryptography >= 1.1. If you are running this in your system environment then gcc is almost certainly already installed, but you may need to apt-get install libssl-dev also if that is missing.
与Fedora/RHEL等效的是libffi-devel和openssl-devel，并且可以与dnf或yum一起安装，具体取决于您的操作系统和版本.
The Fedora/RHEL equivalents are libffi-devel and openssl-devel, and can be installed with dnf or yum depending on your OS and version.
这篇关于Ansible 2.x安装由于paramiko 2.0依赖项更改而失败的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！