使用pip在virtualenv中安装scrapy时出错

47 
pip install scrapy
Downloading/unpacking scrapy
  Downloading Scrapy-0.24.2-py2-none-any.whl (502kB): 502kB downloaded
Downloading/unpacking pyOpenSSL (from scrapy)
  Downloading pyOpenSSL-0.14.tar.gz (128kB): 128kB downloaded
  Running setup.py (path:/home/elie/.virtualenvs/stat/build/pyOpenSSL/setup.py) egg_info for package pyOpenSSL

    warning: no previously-included files matching '*.pyc' found anywhere in distribution
    no previously-included directories found matching 'doc/_build'
Requirement already satisfied (use --upgrade to upgrade): six>=1.5.2 in /home/elie/.virtualenvs/stat/lib/python2.7/site-packages (from scrapy)
Downloading/unpacking queuelib (from scrapy)
  Downloading queuelib-1.1.1.tar.gz
  Running setup.py (path:/home/elie/.virtualenvs/stat/build/queuelib/setup.py) egg_info for package queuelib

Requirement already satisfied (use --upgrade to upgrade): lxml in /home/elie/.virtualenvs/stat/lib/python2.7/site-packages (from scrapy)
Downloading/unpacking w3lib>=1.2 (from scrapy)
  Downloading w3lib-1.6.tar.gz
  Running setup.py (path:/home/elie/.virtualenvs/stat/build/w3lib/setup.py) egg_info for package w3lib

Requirement already satisfied (use --upgrade to upgrade): cssselect>=0.9 in /home/elie/.virtualenvs/stat/lib/python2.7/site-packages (from scrapy)
Downloading/unpacking Twisted>=10.0.0 (from scrapy)
  Downloading Twisted-14.0.0.tar.bz2 (4.3MB): 4.3MB downloaded
  Running setup.py (path:/home/elie/.virtualenvs/stat/build/Twisted/setup.py) egg_info for package Twisted

Downloading/unpacking cryptography>=0.2.1 (from pyOpenSSL->scrapy)
  Downloading cryptography-0.5.2.tar.gz (319kB): 319kB downloaded
  Running setup.py (path:/home/elie/.virtualenvs/stat/build/cryptography/setup.py) egg_info for package cryptography
    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:13:17: fatal error: ffi.h: No such file or directory
     #include <ffi.h>
                     ^
    compilation terminated.
    Traceback (most recent call last):
      File "<string>", line 17, in <module>
      File "/home/elie/.virtualenvs/stat/build/cryptography/setup.py", line 174, in <module>
        "test": PyTest,
      File "/usr/lib/python2.7/distutils/core.py", line 111, in setup
        _setup_distribution = dist = klass(attrs)
      File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/setuptools/dist.py", line 239, in __init__
        self.fetch_build_eggs(attrs.pop('setup_requires'))
      File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/setuptools/dist.py", line 263, in fetch_build_eggs
        parse_requirements(requires), installer=self.fetch_build_egg
      File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/pkg_resources.py", line 564, in resolve
        dist = best[req.key] = env.best_match(req, self, installer)
      File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/pkg_resources.py", line 802, in best_match
        return self.obtain(req, installer) # try and download/install
      File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/pkg_resources.py", line 814, in obtain
        return installer(requirement)
      File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/setuptools/dist.py", line 313, in fetch_build_egg
        return cmd.easy_install(req)
      File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 593, in easy_install
        return self.install_item(spec, dist.location, tmpdir, deps)
      File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 623, in install_item
        dists = self.install_eggs(spec, download, tmpdir)
      File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 809, in install_eggs
        return self.build_and_install(setup_script, setup_base)
      File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 1015, in build_and_install
        self.run_setup(setup_script, setup_base, args)
      File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 1003, 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
    Complete output from command python setup.py egg_info:
    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:13:17: fatal error: ffi.h: No such file or directory

 #include <ffi.h>

                 ^

compilation terminated.

Traceback (most recent call last):

  File "<string>", line 17, in <module>

  File "/home/elie/.virtualenvs/stat/build/cryptography/setup.py", line 174, in <module>

    "test": PyTest,

  File "/usr/lib/python2.7/distutils/core.py", line 111, in setup

    _setup_distribution = dist = klass(attrs)

  File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/setuptools/dist.py", line 239, in __init__

    self.fetch_build_eggs(attrs.pop('setup_requires'))

  File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/setuptools/dist.py", line 263, in fetch_build_eggs

    parse_requirements(requires), installer=self.fetch_build_egg

  File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/pkg_resources.py", line 564, in resolve

    dist = best[req.key] = env.best_match(req, self, installer)

  File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/pkg_resources.py", line 802, in best_match

    return self.obtain(req, installer) # try and download/install

  File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/pkg_resources.py", line 814, in obtain

    return installer(requirement)

  File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/setuptools/dist.py", line 313, in fetch_build_egg

    return cmd.easy_install(req)

  File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 593, in easy_install

    return self.install_item(spec, dist.location, tmpdir, deps)

  File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 623, in install_item

    dists = self.install_eggs(spec, download, tmpdir)

  File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 809, in install_eggs

    return self.build_and_install(setup_script, setup_base)

  File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 1015, in build_and_install

    self.run_setup(setup_script, setup_base, args)

  File "/home/elie/.virtualenvs/stat/local/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 1003, 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

----------------------------------------
Cleaning up...
Command python setup.py egg_info failed with error code 1 in /home/elie/.virtualenvs/stat/build/cryptography
Storing debug log for failure in /home/elie/.pip/pip.log

我以前安装过scrapy，从来没有问题，怎么了？

14.04  python  python-2.7  virtualenv  pip 
— 林诺布
source
@hbdgaf我的意思是我现在安装了它，然后遇到另一个问题
— Lynob 2014年
@hbdgaf这是新的错误pastebin.com/cpCRDVxH
— Lynob 2014年
@hbdgaf做到了这一点，并加以解决，只是您说的Separate question then. Or you could try chat.那样，所以我想我应该显示错误，您知道吗，没关系
— Lynob 2014年
@hbdgaf好的，下次，我将在那里问这样的问题，谢谢，不是真的用于聊天室，这就是为什么我经常在这里发布
— Lynob 2014年
@hbdgaf让他们刻录，我想删除问题，但我不想让回答它的用户失去代表
— Lynob 2014年

Answers:

83

我也遇到了这个错误。问题是

 No package 'libffi' found
 c/_cffi_backend.c:13:17: fatal error: ffi.h: No such file or directory
 #include <ffi.h>

你应该做这个：

sudo apt-get install libffi-dev
— 好像
source
11
尝试了这一点，我也必须安装libssl-dev
— Lynob
我在尝试时遇到了这个问题pip3 install cairocffi。它解决了。谢谢！
— 马丁·托马
2
Amazon Linux：sudo yum install libffi-devel
— John Rotenstein 2015年
12

从14.04的全新安装中，我必须安装python-dev，libffi-dev，libssl-dev，libxml2-dev和libxslt1-dev软件包。一旦安装，pip install scrapy就可以了。

sudo apt-get install python-dev libffi-dev libssl-dev libxml2-dev libxslt1-dev
pip install scrapy
— 罗曼达斯
source
我遇到此错误：`----------------------------------------命令“ / usr / bin / python -u -c“导入设置工具，标记化； __ file __ ='/ tmp / pip-build-0R1XKL / lxml / setup.py'; exec（compile（getattr（tokenize，'open'，open）（file）） .read（）。replace（'\ r \ n'，'\ n'），file，'exec'））“安装--record /tmp/pip-T9Uhnd-record/install-record.txt --single-版本外部管理的--compile“失败，错误代码为/ tmp / pip-build-0R1XKL / lxml /
— Nhu Vy
这是我的完整日志：gist.github.com/donhuvy/1cc55b4ed6a5c8a6e458fce62c51e337我尝试在CentOS 7-x64上安装scrapy
— Do Nhu Vy
0

我已经使用以下两个命令安装了scrapy：

sudo apt-get install python-dev libffi-dev libssl-dev libxml2-dev libxslt1-dev

sudo apt-get install python-scrapy

检查scrapy的版本，

scrapy -V
— Pravalikarao
source
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