我是用Unix和python安装软件包的新手。我正在Windows上的Ubuntu上开发Bash。我想开始学习Scrapy,我使用以下方法安装它:
apt-get install scrapy
当我尝试创建项目时,出现以下错误:
root > scrapy startproject tutorial
Traceback (most recent call last):
File "/usr/local/bin/scrapy", line 11, in <module>
sys.exit(execute())
File "/usr/local/lib/python2.7/dist-packages/scrapy/cmdline.py", line 128, in execute
cmds = _get_commands_dict(settings, inproject)
File "/usr/local/lib/python2.7/dist-packages/scrapy/cmdline.py", line 46, in _get_commands_dict
cmds = _get_commands_from_module('scrapy.commands', inproject)
File "/usr/local/lib/python2.7/dist-packages/scrapy/cmdline.py", line 29, in _get_commands_from_module
for cmd in _iter_command_classes(module):
File "/usr/local/lib/python2.7/dist-packages/scrapy/cmdline.py", line 19, in _iter_command_classes
for module in walk_modules(module_name):
File "/usr/local/lib/python2.7/dist-packages/scrapy/utils/misc.py", line 71, in walk_modules
submod = import_module(fullpath)
File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
__import__(name)
File "/usr/local/lib/python2.7/dist-packages/scrapy/commands/version.py", line 6, in <module>
import OpenSSL
File "/usr/local/lib/python2.7/dist-packages/OpenSSL/__init__.py", line 8, in <module>
from OpenSSL import crypto, SSL
File "/usr/local/lib/python2.7/dist-packages/OpenSSL/crypto.py", line 16, in <module>
from OpenSSL._util import (
File "/usr/local/lib/python2.7/dist-packages/OpenSSL/_util.py", line 6, in <module>
from cryptography.hazmat.bindings.openssl.binding import Binding
File "/usr/local/lib/python2.7/dist-packages/cryptography/hazmat/bindings/openssl/binding.py", line 13, in <module>
from cryptography.hazmat.bindings._openssl import ffi, lib
ImportError: /usr/local/lib/python2.7/dist-packages/cryptography/hazmat/bindings/_openssl.so: cannot enable executable stack as shared object requires: Invalid argument
我验证了上述文件是否可用。我试图了解是否有任何我错过安装的先决条件(我对此表示怀疑,因为我知道它们是在安装过程中处理的 - 如果我错了,请纠正我),或者我需要启用任何内容。
谢谢,萨西
您不应该使用 apt-get
来安装 scrapy,因为它的版本会很旧。你应该像下面这样做
apt install -y python python-pip
然后使用下面安装刮擦
pip install --force --upgrade scrapy