我有以下配置
我已经使用PIP和setup.py检查了文章Python Cryptography包 - Failed to install Python Cryptography package with PIP and setup.py。似乎没有什么可以解决的。
我有最新版本的模块（setuptools e.t.c。）
似乎正在尝试构建构造函数并找到一些不匹配的版本
File "/tmp/pip-build-nrsep1ln/cryptography/src/_cffi_src/utils.py", line 69, in build_ffi
ffi = FFI()
File "/home/alex/.local/lib/python3.5/site-packages/cffi/api.py", line 59, in __init__
"version mismatch, %s != %s" % (backend.__version__, __version__)
AssertionError: version mismatch, 1.5.2 != 1.8.3
MY SYSTEM HAS 1.8.3 VERSION SEE BELOW
----------------------------------------------------------------------
Collecting cffi - see http://cffi.readthedocs.io/en/latest/installation.html
Using cached cffi-1.8.3-cp35-cp35m-manylinux1_x86_64.whl
Collecting pycparser (from cffi)
Installing collected packages: pycparser, cffi
Successfully installed cffi-1.8.3 pycparser-2.16
------------------------------------------------------
请记住，我不是操作系统专家 感谢您的支持
pip3安装quandl的控制台命令历史记录
pip3 install quandl
Collecting quandl
Using cached Quandl-3.0.1-py2.py3-none-any.whl
Collecting numpy>=1.8 (from quandl)
Using cached numpy-1.11.2-cp35-cp35m-manylinux1_x86_64.whl
Collecting more-itertools (from quandl)
Collecting inflection>=0.3.1 (from quandl)
Collecting pyOpenSSL (from quandl)
Using cached pyOpenSSL-16.2.0-py2.py3-none-any.whl
Collecting six (from quandl)
Using cached six-1.10.0-py2.py3-none-any.whl
Collecting python-dateutil (from quandl)
Using cached python_dateutil-2.5.3-py2.py3-none-any.whl
Collecting pyasn1 (from quandl)
Using cached pyasn1-0.1.9-py2.py3-none-any.whl
Collecting pandas>=0.14 (from quandl)
Using cached pandas-0.19.0-cp35-cp35m-manylinux1_x86_64.whl
Collecting requests>=2.7.0 (from quandl)
Using cached requests-2.11.1-py2.py3-none-any.whl
Collecting ndg-httpsclient (from quandl)
Collecting cryptography>=1.3.4 (from pyOpenSSL->quandl)
Using cached cryptography-1.5.2.tar.gz
Collecting pytz>=2011k (from pandas>=0.14->quandl)
Using cached pytz-2016.7-py2.py3-none-any.whl
Collecting idna>=2.0 (from cryptography>=1.3.4->pyOpenSSL->quandl)
Using cached idna-2.1-py2.py3-none-any.whl
Collecting setuptools>=11.3 (from cryptography>=1.3.4->pyOpenSSL->quandl)
Using cached setuptools-28.6.1-py2.py3-none-any.whl
Collecting cffi>=1.4.1 (from cryptography>=1.3.4->pyOpenSSL->quandl)
Using cached cffi-1.8.3-cp35-cp35m-manylinux1_x86_64.whl
Collecting pycparser (from cffi>=1.4.1->cryptography>=1.3.4->pyOpenSSL->quandl)
Building wheels for collected packages: cryptography
Running setup.py bdist_wheel for cryptography ... error
Complete output from command /usr/bin/python3 -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-nrsep1ln/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" bdist_wheel -d /tmp/tmp79dm6ulvpip-wheel- --python-tag cp35:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/tmp/pip-build-nrsep1ln/cryptography/setup.py", line 334, in <module>
**keywords_with_side_effects(sys.argv)
File "/usr/lib/python3.5/distutils/core.py", line 108, in setup
_setup_distribution = dist = klass(attrs)
File "/usr/lib/python3/dist-packages/setuptools/dist.py", line 272, in __init__
_Distribution.__init__(self,attrs)
File "/usr/lib/python3.5/distutils/dist.py", line 281, in __init__
self.finalize_options()
File "/usr/lib/python3/dist-packages/setuptools/dist.py", line 327, in finalize_options
ep.load()(self, ep.name, value)
File "/home/alex/.local/lib/python3.5/site-packages/cffi/setuptools_ext.py", line 181, in cffi_modules
add_cffi_module(dist, cffi_module)
File "/home/alex/.local/lib/python3.5/site-packages/cffi/setuptools_ext.py", line 48, in add_cffi_module
execfile(build_file_name, mod_vars)
File "/home/alex/.local/lib/python3.5/site-packages/cffi/setuptools_ext.py", line 24, in execfile
exec(code, glob, glob)
File "src/_cffi_src/build_openssl.py", line 81, in <module>
extra_link_args=extra_link_args(compiler_type()),
File "/tmp/pip-build-nrsep1ln/cryptography/src/_cffi_src/utils.py", line 61, in build_ffi_for_binding
extra_link_args=extra_link_args,
File "/tmp/pip-build-nrsep1ln/cryptography/src/_cffi_src/utils.py", line 69, in build_ffi
ffi = FFI()
File "/home/alex/.local/lib/python3.5/site-packages/cffi/api.py", line 59, in __init__
"version mismatch, %s != %s" % (backend.__version__, __version__)
AssertionError: version mismatch, 1.5.2 != 1.8.3
----------------------------------------
Failed building wheel for cryptography
Running setup.py clean for cryptography
Complete output from command /usr/bin/python3 -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-nrsep1ln/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" clean --all:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/tmp/pip-build-nrsep1ln/cryptography/setup.py", line 334, in <module>
**keywords_with_side_effects(sys.argv)
File "/usr/lib/python3.5/distutils/core.py", line 108, in setup
_setup_distribution = dist = klass(attrs)
File "/usr/lib/python3/dist-packages/setuptools/dist.py", line 272, in __init__
_Distribution.__init__(self,attrs)
File "/usr/lib/python3.5/distutils/dist.py", line 281, in __init__
self.finalize_options()
File "/usr/lib/python3/dist-packages/setuptools/dist.py", line 327, in finalize_options
ep.load()(self, ep.name, value)
File "/home/alex/.local/lib/python3.5/site-packages/cffi/setuptools_ext.py", line 181, in cffi_modules
add_cffi_module(dist, cffi_module)
File "/home/alex/.local/lib/python3.5/site-packages/cffi/setuptools_ext.py", line 48, in add_cffi_module
execfile(build_file_name, mod_vars)
File "/home/alex/.local/lib/python3.5/site-packages/cffi/setuptools_ext.py", line 24, in execfile
exec(code, glob, glob)
File "src/_cffi_src/build_openssl.py", line 81, in <module>
extra_link_args=extra_link_args(compiler_type()),
File "/tmp/pip-build-nrsep1ln/cryptography/src/_cffi_src/utils.py", line 61, in build_ffi_for_binding
extra_link_args=extra_link_args,
File "/tmp/pip-build-nrsep1ln/cryptography/src/_cffi_src/utils.py", line 69, in build_ffi
ffi = FFI()
File "/home/alex/.local/lib/python3.5/site-packages/cffi/api.py", line 59, in __init__
"version mismatch, %s != %s" % (backend.__version__, __version__)
AssertionError: version mismatch, 1.5.2 != 1.8.3
----------------------------------------
Failed cleaning build dir for cryptography
Failed to build cryptography
Installing collected packages: numpy, more-itertools, inflection, idna, pyasn1, six, setuptools, pycparser, cffi, cryptography, pyOpenSSL, python-dateutil, pytz, pandas, requests, ndg-httpsclient, quandl
Running setup.py install for cryptography ... error
Complete output from command /usr/bin/python3 -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-nrsep1ln/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-qz2rogd_-record/install-record.txt --single-version-externally-managed --compile --user --prefix=:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/tmp/pip-build-nrsep1ln/cryptography/setup.py", line 334, in <module>
**keywords_with_side_effects(sys.argv)
File "/usr/lib/python3.5/distutils/core.py", line 108, in setup
_setup_distribution = dist = klass(attrs)
File "/usr/lib/python3/dist-packages/setuptools/dist.py", line 272, in __init__
_Distribution.__init__(self,attrs)
File "/usr/lib/python3.5/distutils/dist.py", line 281, in __init__
self.finalize_options()
File "/usr/lib/python3/dist-packages/setuptools/dist.py", line 327, in finalize_options
ep.load()(self, ep.name, value)
File "/home/alex/.local/lib/python3.5/site-packages/cffi/setuptools_ext.py", line 181, in cffi_modules
add_cffi_module(dist, cffi_module)
File "/home/alex/.local/lib/python3.5/site-packages/cffi/setuptools_ext.py", line 48, in add_cffi_module
execfile(build_file_name, mod_vars)
File "/home/alex/.local/lib/python3.5/site-packages/cffi/setuptools_ext.py", line 24, in execfile
exec(code, glob, glob)
File "src/_cffi_src/build_openssl.py", line 81, in <module>
extra_link_args=extra_link_args(compiler_type()),
File "/tmp/pip-build-nrsep1ln/cryptography/src/_cffi_src/utils.py", line 61, in build_ffi_for_binding
extra_link_args=extra_link_args,
File "/tmp/pip-build-nrsep1ln/cryptography/src/_cffi_src/utils.py", line 69, in build_ffi
ffi = FFI()
File "/home/alex/.local/lib/python3.5/site-packages/cffi/api.py", line 59, in __init__
"version mismatch, %s != %s" % (backend.__version__, __version__)
AssertionError: version mismatch, 1.5.2 != 1.8.3
----------------------------------------
Command "/usr/bin/python3 -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-nrsep1ln/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-qz2rogd_-record/install-record.txt --single-version-externally-managed --compile --user --prefix=" failed with error code 1 in /tmp/pip-build-nrsep1ln/cryptography/
答案 0 :(得分：0)
我在Raspberry Pi上运行python（也是linux）。
经过一些研究后我发现可能没有安装正确的库然后安装quandl，最有可能是ssl。熊猫和斯卡兰也可能是必要的（熊猫肯定）。
sudo apt-get install libssl-dev
pip install pandas
pip install sklearn
如果在此之后仍然无效，请尝试安装ffi。在完成所有其他事情之后，这是适合我的那个。
sudo apt-get install libffi-dev
这就是为密码学和ciffi正确地做轮子的原因。
使用Pip3命令可能对某些人有用，但没有改变我的事实，即我没有安装正确的工具。希望这对你有用。
P.S。我还认为它与我使用虚拟环境或quandl存储库有关，但这些似乎与错误完全无关，因为它实际上是在尝试安装，但只是缺少它所需的工具。