python scrapy

pip install Scrapy

[root@localmesos ~]# scrapy -h
Traceback (most recent call last):
File "/usr/bin/scrapy", line 7, in <module>
from scrapy.cmdline import execute
File "/usr/lib/python2.7/site-packages/scrapy/cmdline.py", line 9, in <module>
from scrapy.crawler import CrawlerProcess
File "/usr/lib/python2.7/site-packages/scrapy/crawler.py", line 7, in <module>
from twisted.internet import reactor, defer
File "/usr/lib64/python2.7/site-packages/twisted/internet/reactor.py", line 38, in <module>
from twisted.internet import default
File "/usr/lib64/python2.7/site-packages/twisted/internet/default.py", line 56, in <module>
install = _getInstallFunction(platform)
File "/usr/lib64/python2.7/site-packages/twisted/internet/default.py", line 44, in _getInstallFunction
from twisted.internet.epollreactor import install
File "/usr/lib64/python2.7/site-packages/twisted/internet/epollreactor.py", line 24, in <module>
from twisted.internet import posixbase
File "/usr/lib64/python2.7/site-packages/twisted/internet/posixbase.py", line 18, in <module>
from twisted.internet import error, udp, tcp
File "/usr/lib64/python2.7/site-packages/twisted/internet/tcp.py", line 28, in <module>
from twisted.internet._newtls import (
File "/usr/lib64/python2.7/site-packages/twisted/internet/_newtls.py", line 21, in <module>
from twisted.protocols.tls import TLSMemoryBIOFactory, TLSMemoryBIOProtocol
File "/usr/lib64/python2.7/site-packages/twisted/protocols/tls.py", line 63, in <module>
from twisted.internet._sslverify import _setAcceptableProtocols
File "/usr/lib64/python2.7/site-packages/twisted/internet/_sslverify.py", line 38, in <module>
TLSVersion.TLSv1_1: SSL.OP_NO_TLSv1_1,
AttributeError: 'module' object has no attribute 'OP_NO_TLSv1_1'
[root@localmesos ~]# pip install twisted==13.1.0
Collecting twisted==13.1.0
Downloading Twisted-13.1.0.tar.bz2 (2.7MB)
100% |████████████████████████████████| 2.7MB 125kB/s
Requirement already satisfied: zope.interface>=3.6.0 in ./.local/lib/python2.7/site-packages/zope.interface-4.2.0-py2.7-linux-x86_64.egg (from twisted==13.1.0)
Requirement already satisfied: setuptools in /usr/lib/python2.7/site-packages (from zope.interface>=3.6.0->twisted==13.1.0)
Installing collected packages: twisted
Found existing installation: Twisted 17.5.0
Uninstalling Twisted-17.5.0:
Successfully uninstalled Twisted-17.5.0
Running setup.py install for twisted ... done
Successfully installed twisted-13.1.0
[root@localmesos ~]# scrapy -h
Scrapy 1.4.0 - no active project

Usage:
scrapy <command> [options] [args]

Available commands:
bench Run quick benchmark test
fetch Fetch a URL using the Scrapy downloader
genspider Generate new spider using pre-defined templates
runspider Run a self-contained spider (without creating a project)
settings Get settings values
shell Interactive scraping console
startproject Create new project
version Print Scrapy version
view Open URL in browser, as seen by Scrapy

[ more ] More commands available when run from project directory

Use "scrapy <command> -h" to see more info about a command

原文地址:https://www.cnblogs.com/mhc-fly/p/7538041.html