问题描述
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scrapy，从来没有问题，有什么不对？
最佳解决方法
我也得到了这个错误。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
次佳解决方法
从全新安装的14.04开始，我必须安装python-dev，libffi-dev，libssl-dev，libxml2-dev和libxslt1-dev软件包。安装完成后，pip install scrapy工作正常。
sudo apt-get install python-dev libffi-dev libssl-dev libxml2-dev libxslt1-dev
pip install scrapy