python3 requests

blogger himself in learning machine learning process, see the related books use Python version is different, but want to each version can know how to use, next, bloggers to introduce a more simple and convenient way: First: Install the Python environment, highly recommended to use Anaconda,anaconda is a python release, if Python is compared to Linux, then Anancoda is CentOS or Ubuntu. The first step. Installation Anaconda 3 (Note: first install ANACONDA2 or 3 version can, no problem), download

as E:Print (' Htmldownloader download error: ', E.reason)Content = NoneIf Retry_count > 0:If Hasattr (E, ' Code ') and #说明是 httperror Error and HTTP CODE 5XX range description is a server error, you can try to download it againReturn self.download (URL, retry_count-1, headers, proxy, data)return content123456789101112131415161718192021st222324252627282930123456789101112131415161718192021st222324252627282930[The example full source point I view]‘‘‘The following is a downloader implemented using

The following error occurred while using PIP to install the package recently' ASCII ' codec can't encode character u'\u258f'Query the data after the reason is that PIP installation Python package will load the user directory, the user directory is exactly Chinese, ASCII can not encodeOpen the corresponding installation directory pathD:\Python27\Lib\site-packagesCreate a new file sitecustomize.py enter the content below# Encoding=utf8 Import sysreload (SYS) sys.setdefaultencoding ('gb2312')Note:

Python crawler tutorial-elegant HTTP library requests (2) and pythonrequests Preface Urllib, urllib2, urllib3, httplib, and httplib2 are HTTP-related Python modules. If you look at the Python Module name, you will find it anti-human. What's worse, these modules are very different in Python2 and Python3, if the business code needs to be compatible with both 2 and 3, writing will crash. Fortunately, there is

+ C to exit the current infinite loop.Infinite loops are very useful for client real-time requests on the server. While loop use else statementIn the while... When the condition is false, else executes the statement block of else:Instance #! /Usr/bin/python3 count = 0 while count Run the preceding script and the output result is as follows: 0 less than 51 less than 52 less than 53 less than 54 less than 5

the wxPython2.8 installation directory and the wxpython below it to the environment into path, as mine is:D:\WorkSpace\Python2.7\Lib\site-packages\wx-2.8-msw-unicodeD:\WorkSpace\Python2.7\Lib\site-packages\wx-2.8-msw-unicode\wxPythonAfter downloading, install it into the \lib\site-packages directory under the Python2 installation directory10, installation Robotframework-rideinstall robotframework-rideAfter installation, confirm that there are ride.py files in the scripts directory of the Python

Requests implements most of the functions of the HTTP protocol, it provides features such as keep-alive, connection pooling, cookie persistence, content auto-decompression, HTTP proxy, SSL authentication and many other features. The following article mainly introduces the Python crawler in the introduction of the elegant HTTP library requests related information, the need for friends can refer to. Objectiv

Reprint please indicate author and source: http://blog.csdn.net/c406495762GitHub Code acquisition: Https://github.com/Jack-Cherish/python-spiderPython version: python3.xRunning platform: WindowsIde:sublime Text3PS: This article for the Gitchat online sharing article, the article published time for September 19, 2017. Activity Address:http://gitbook.cn/m/mazi/activity/59b09bbf015c905277c2cc09 Introduction to the two Web crawler brief example of review

Crawl target1. This code is run on the Python2, python3 the most need to change 2 lines of code, used to other Python modules Selenium 2.53.6 +firefox 44 BeautifulSoup Requests 2. Crawling the target site, my blog: Https://home.cnblogs.com/u/yoyoketangCrawl content: Crawl all of my blog's fan names and save to TXT3. Because the Blog Park login is required for human-computer authenticat

reprint please indicate author and source: http://blog.csdn.net/c406495762Operating Platform: Windowspython version: python3.xIDE: Sublime Text3 Objective Pre-knowledge Actual combat 1 background 2 Requests Installation 3 Crawling single-page destination connections 4 Crawling multiple-page destination connections 5 Single Photo Download 6 overall Co

Version: python3.xOperating system: Win7Editor: PycharmCrawl page: One of Ctrip's pages (Korea Seoul 6th 5-night semi-self-guided tour • Nonstop + ski Resort or Nami Island + Rakuten World + 1 Day free event-"Ctrip travel") #!/usr/bin/env python3#-*-coding:utf-8-*-from urllib.request Import Urlopenfrom Urllib.error Import httperrorfrom BS4 import beautifulsoupdef getcomment (URL): try:html = Urlopen (URL) e

Install both Python2 and Python3 on the same computer(transferred from Zhengyihan, blog home: http://www.cnblogs.com/zhengyihan1216/)There are currently two versions of Python, Python2 and Python3, and these two editions are being updated and maintained at the same time.Whether to choose Python2 or select Python3 depends on which version the framework supports an

Original http://www.mamicode.com/info-detail-1755093.html Introduction: Requests is written in Python language, based on Urllib, using APACHE2 licensed Open Source Protocol HTTP library. It is more convenient than urllib, can save us a lot of work, fully meet the requirements of HTTP testing. Requests's philosophy is centered on PEP's 20 idiom, so it's more pythoner than Urllib. The more important point is that it supports

My readers know that I am a man who likes to scold Python3 Unicode. This time is no exception. I will tell you how painful it is to use Unicode and why I can't shut up. It took me two weeks to study Python3, and I needed to vent my disappointment. In these scolding, there is still useful information, because it teaches us how to deal with Python3. If I'm not both

Python3 crawlers crawl the 1024 image area, I have been dealing with python for a while and have been trying to write a crawler. However, there is really no time near the end of the term recently. I just made a demo and sometimes there will be some errors, but it can still run, and there are still no problems with the next several hundred images. It is estimated that the remaining problems will be solved only after the holiday. Put the code first for

Python3 basics 3 -- Data Type -- data operation -- Expression if, python33 --1. For python3 data type, 1.1 numbers, such as 1.2, and int (integer) are on 32-bit machines. The value range is-2 ** 31 ~ 2 ** 31-1, I .e.-2147483648 ~ 2147483647In a 64-bit system, the number of digits of an integer is 64-bit, and the value range is-2 ** 63 ~ 2 ** 63-1, that is,-9223372036854775808 ~ 9223372036854775807 1.2.1 lon

First, Introduction Requests is written in Python language, based on Urllib, but it is more convenient than urllib, can save us a lot of work, fully meet the requirements of HTTP testing. Requests's philosophy was developed in the center of the PEP 20 idiom, so it is more pythoner than Urllib. The more important thing is that it supports Python3!Second, usage1. Use requ