scrapy for python 3

debug:ignoring response What's going on, it's been blocked, let's disguise it, add User_agent in the settings.py:Workaround:Add the User_agent configuration to the setting.py file: ( just write one and you can )User_agent = ' mozilla/5.0 (Windows NT 6.1; WOW64) applewebkit/537.36 (khtml, like Gecko) chrome/55.0.2883.87 safari/537.36 'OrUser_agent = ' mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_3) applewebkit/536.5 (khtml, like Gecko) chrome/19.0.1084.54 safari/536.5 '

Installation of 1.redis: http://www.runoob.com/redis/redis-install.html2. Test if you can log in remotelyUse the Windows Command window to enter the Redis installation directory and use the command to remotely connect Centos7 Redis:Redis-cli-h 192.168.1.112-p 6379Test if you can read the master Redis on this machineIf this error is:Then open Linux, modify the contents of the/etc/redis.conf, add the following code, and then re-run on Windows again:#注释bind #bind 127.0.0.1protected-mode NoRead whet

Inverted indexThe inverted index stems from the fact that a record needs to be found based on the value of the property. Each entry in this index table includes an attribute value and the address of each record that has that property value. Because the property value is not determined by the record, it is determined by the property value to determine the position of the record, and is therefore called an inverted index (inverted). A file with an inverted index is called an inverted index file (i

This example describes the Python custom Scrapy intermediate module to avoid duplication of collection methods. Share to everyone for your reference. as follows: From scrapy import log to scrapy.http import Request from Scrapy.item import baseitem from scrapy.utils.request Import Request_fingerprint from Myproject.items Import myitem Class Ignorevisiteditem

Or the site of the previous blog, we added pipeline.pyitems.pyFrom Scrapy.item Import Item, Fieldclass Website (item): Name = field () Description = field () url = field ()dmoz.pyfromscrapy.spiderimportspiderfromscrapy.selectorimportselectorfrom Dirbot.itemsimportwebsiteclassdmozspider (Spider):name= " Dmoz "allowed_domains=[" dmoz.org "]start_urls= [ "http://www.dmoz.org/Computers/Programming/Languages/ python/books/"," http://www.dmoz.org/Computers/

Download Pywin32, Twisted's WHL package first: http://www.lfd.uci.edu/~gohlke/pythonlibs/By command: Pip install xxxx installs the following files Installing lxml==3.7.2 Installing Zope.interface Installing PYWIN32-221-CP36-CP36M-WIN_AMD64.WHL Installing TWISTED-17.1.0-CP36-CP36M-WIN_AMD64.WHL After installing ez_setup.py, URL: https://pypi.python.org/pypi/ez_setup, unzip and put ez_setup.py into the Python installation directo

This article describes the way Python uses a proxy server when collecting data based on scrapy. Share to everyone for your reference. Specifically as follows: # to authenticate the proxy, #you must set the proxy-authorization header. #You *cannot* Use the form http://user:pass@proxy:port #in request.meta[' proxy '] import base64 Proxy_ip_ Port = "123.456.789.10:8888" proxy_user_pass = "Awesome:dude"

": "Jobbole", "_type": "Job", "_id": "6"}}{"title": "Development", "Salary_min": "City": "Beijing", " Company ": {" name ":" Baidu "," company_addr ":" Beijing Software Park "}," Publish_date ":" 2017-4-16 "," Comments ": 15}Bulk Bulk Operations Bulk Delete dataPOST _bulk{"Delete": {"_index": "Jobbole", "_type": "Job", "_id": "5"}}{"delete": {"_index": "Jobbole", "_type": "Job", "_ ID ":" 6 "}}Bulk Bulk Operations Batch modification dataPOST _bulk{"Update": {"_index": "Jobbole", "_type": "Job",

(in the case of FP) (I am using the root user) (1) Export data and table structure Export the SQL script using the mysqldump command (if you do not specify an export path, export to the current path by default) Format: Mysqldump-u user name-p (password) database name > database name. sql Mysqldump-u root-p FP > Fp.sql Prompt for password after enter (2) Export table structure only Format: Mysqldump-u user name-p (password)-d database name > database name. sql Mysqldump-u root-p-D FP > Fp.sql Se

The use of XPath () analysis to crawl data is relatively simple, but the URL of the jump and recursion, and so more troublesome. Delayed for a long time, or the watercress good ah, url so specifications. Alas, Amazon URL is a mess .... It may not be enough to understand the URL. Amazon├──amazon│├──__init__.py│├──__init__.pyc│├──items.py│├──items.pyc│├──msic││├──__init__.p Y││└──pad_urls.py│├──pipelines.py│├──settings.py│├──settings.pyc│└──spiders│├──__init__.py│ ├──__init__.pyc│├──pad_spider.py│

Comparison between Python 2 and Python 3 and python 3 I. version Comparison The Python version is mainly divided into two categories: Python 2.7.3 is the most widely used

Python development [initial]: Install Python 3 and Python 3 in Linux By default, the Linux system comes with python, Which is depended on by many programs in the system. Therefore, it is recommended that you do not delete it easi

Python 3 is the latest version of Guido van Rossum's powerful universal programming language. Although it breaks backwards compatibility with the 2.x version, it cleans up some grammatical issues. This article is the first in a series of articles that describe various changes that affect the language and backward compatibility, and also provide several examples of new features.Cesar Otero, consultant, freel

Compile and install Python 3 in Linux, and compile Python 3 in linux.Compile and install Python 3 in Linux Author: Xiu Yuxuan Chen @ cnblog 1 Preface In Linux, the default system comes with python2.6, Which is depended on by

Supporting Python 3 (Python 3 supported) About the book About terminology Order Welcome to Python 3 Is it time now? What if I can't switch now?

Python 3-minute entry, python 3-minute1. Configure the Python environment (version 2.7 ): Python Official Website: https://www.python.org/Pycharm http://www.jetbrains.com/pycharm/downloadNote: It is enough for individuals to downl

Python core programming-Chapter 3-exercises, chapter 3 of python 1. This is a feature of python. python first creates an object. When assigning values to a variable, you do not need to define the name and type of the variable. Act

Python core programming-Chapter 3-personal notes, chapter 3 of python 1. Statements and syntax (1) The Backslash "\" indicates that the statement continues. A good programming habit of python is that the last line contains no more than 80 characters. When there are too many

Supporting Python 3:an In-depth guidesupporting Python 3 doesn ' t has to be daunting. The guides through the process of adding Python 3 support, from choosing a strategy to solving your distribution Issues. Using Plenty of code e

Attack python Article 3: basic, attack python Article 3Basic collection sequence unpacking Example: >>>x,y,z=1,2,3>>>print x,y,z1 2 3 It's okay to exchange variables. >>> X, y = y, x >>> print x, y, z2 1 3 # This is very practical.This feature is particularly useful when a