Question

我在终端输入：

$ scrapy startproject tutorial

我无法开始一个新的scrapy项目，并且我会继续安装scrapy需要的所有东西。我无法让它发挥作用。这是它给我的错误信息：

File "/Users/carterdavis/anaconda/bin/scrapy", line 4, in <module>
execute()
File "/Users/carterdavis/anaconda/lib/python2.7/site-packages/scrapy/cmdline.py", line 122, in execute
cmds = _get_commands_dict(settings, inproject)
File "/Users/carterdavis/anaconda/lib/python2.7/site-packages/scrapy/cmdline.py", line 46, in _get_commands_dict
cmds = _get_commands_from_module('scrapy.commands', inproject)
File "/Users/carterdavis/anaconda/lib/python2.7/site-packages/scrapy/cmdline.py", line 29, in _get_commands_from_module
for cmd in _iter_command_classes(module):
File "/Users/carterdavis/anaconda/lib/python2.7/site-packages/scrapy/cmdline.py", line 20, in _iter_command_classes
for module in walk_modules(module_name):
File "/Users/carterdavis/anaconda/lib/python2.7/site-packages/scrapy/utils/misc.py", line 68, in walk_modules
submod = import_module(fullpath)
File "/Users/carterdavis/anaconda/lib/python2.7/importlib/__init__.py", line 37, in import_module
__import__(name)
File "/Users/carterdavis/anaconda/lib/python2.7/site-packages/scrapy/commands/bench.py", line 3, in <module>
from scrapy.tests.mockserver import MockServer
File "/Users/carterdavis/anaconda/lib/python2.7/site-packages/scrapy/tests/mockserver.py", line 6, in <module>
from twisted.internet import reactor, defer, ssl
File "/Users/carterdavis/anaconda/lib/python2.7/site-packages/twisted/internet/ssl.py", line 25, in <module>
from OpenSSL import SSL
File "/Users/carterdavis/anaconda/lib/python2.7/site-packages/OpenSSL/__init__.py", line 36, in <module>
from OpenSSL import crypto
ImportError: dlopen(/Users/carterdavis/anaconda/lib/python2.7/site-packages/OpenSSL/crypto.so, 10): Library not loaded: libssl.1.0.0.dylib
Referenced from: /Users/carterdavis/anaconda/lib/python2.7/site-packages/OpenSSL/crypto.so
Reason: image not found

我有Python 2.7以及运行scrapy所需的每个包。

Answer 1

看起来你正在使用Anaconda - 我遇到了同样的问题并修复了它（在OS X 10.9和10.10上测试过）。

如果安装了scip，请先卸载它。

使用conda安装加密：

conda install cryptography

设置DYLD_LIBRARY_PATH环境变量：

export DYLD_LIBRARY_PATH=$HOME/anaconda/lib

然后再次安装scrapy

pip install scrapy

Answer 2

导入错误： dlopen（/Users/carterdavis/anaconda/lib/python2.7/site-packages/OpenSSL/crypto.so,10）：未加载库： libssl.1.0.0.dylib

根据上面的错误消息，您的操作系统中是否安装了 libssl 包？如果您使用的是Ubuntu（或Debian），请尝试执行命令：

apt-get install libssl1.0.0

Answer 3

这是加密安装的问题，请尝试再次安装crytography，其中还包括安装OpenSSL。你的项目将开始使用它。请按照以下步骤操作。

对于Debian和Ubuntu

$ sudo apt-get install build-essential libssl-dev libffi-dev python-dev

对于Fedora和RHEL衍生物

$ sudo yum install gcc libffi-devel python-devel openssl-devel

安装后，您现在应该能够使用通常的

构建和安装加密

$ pip install cryptography

在此之后，尝试创建您的scrapy项目。

无法建立一个Scrapy项目

3 个答案: