robotstxt | repository contains Google 's robots.txt parser
kandi X-RAY | robotstxt Summary
kandi X-RAY | robotstxt Summary
The Robots Exclusion Protocol (REP) is a standard that enables website owners to control which URLs may be accessed by automated clients (i.e. crawlers) through a simple text file with a specific syntax. It's one of the basic building blocks of the internet as we know it and what allows search engines to operate. Because the REP was only a de-facto standard for the past 25 years, different implementers implement parsing of robots.txt slightly differently, leading to confusion. This project aims to fix that by releasing the parser that Google uses. The library is slightly modified (i.e. some internal headers and equivalent symbols) production code used by Googlebot, Google's crawler, to determine which URLs it may access based on rules provided by webmasters in robots.txt files. The library is released open-source to help developers build tools that better reflect Google's robots.txt parsing and matching. For webmasters, we included a small binary in the project that allows testing a single URL and user-agent against a robots.txt.
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of robotstxt
robotstxt Key Features
robotstxt Examples and Code Snippets
Community Discussions
Trending Discussions on robotstxt
QUESTION
I am trying to implement a similar script on my project following this blog post here: https://www.imagescape.com/blog/scraping-pdf-doc-and-docx-scrapy/
The code of the spider class from the source:
...ANSWER
Answered 2021-Dec-12 at 19:39This program was meant to be ran in linux, so there are a few steps you need to do in order for it to run in windows.
1. Install the libraries.
Installation in Anaconda:
QUESTION
Here are my spider code and the log I got. The problem is the spider seems to stop scraping items addressed from somewhere in the midst of page 10 (while there are 352 pages to be scraped). When I check the XPath expressions of the rest of the elements, I find them the same in my browser.
Here is my spider:
...ANSWER
Answered 2021-Dec-04 at 11:41Your code is working fine as your expectation and the problem was in pagination portion and I've made the pagination in start_urls which type of pagination is always accurate and more than two times faster than if next page.
CodeQUESTION
So I've tried several things to understand why my spider is failing, but haven't suceeded. I've been stuck for days now and can't afford to keep putting this off any longer. I just want to scrape the very first page, not doing pagination at this time. I'd highly appreciate your help :( This is my code:
...ANSWER
Answered 2021-Nov-03 at 19:42I think your error is that you are trying to parse instead of starting the requests.
Change:
QUESTION
I am trying to get scrapy-selenium to navigate a url while picking some data along the way. Problem is that it seems to be filtering out too much data. I am confident there is not that much data in there. My problem is I do not know where to apply dont_filter=True
.
This is my code
ANSWER
Answered 2021-Sep-11 at 09:59I run your code on a clean, virtual environment and it is working as intended. It doesn't give me a KeyError either but has some problems on various xpath paths. I'm not quite sure what you mean by filtering out too much data but your code hands me this output:
You can fix the text errors (on product category
, part number
and description
) by changing xpath variables like this:
QUESTION
I have deployed a React-based Webb app in Azure App Services The website is working as it is supposed to, but according to https://search.google.com/test/mobile-friendly, Google is not able to reach it.
Google's guess is that my Robot text is blocking it, but I don't think it is the case
Below is my robot text
...ANSWER
Answered 2021-Sep-23 at 05:59Where several user agents are recognized in the robots.txt file, Google will follow the most specific.
If you want all of Google to be able to crawl your pages, you don't need a robots.txt file at all.
If you want to block or allow all of Google's crawlers from accessing some of your content, you can do this by specifying Googlebot as the user agent.
QUESTION
I'm trying to scrape data from this website: https://aa-dc.org/meetings?tsml-day=any&tsml-type=IPM
I have made the following script for the intial data:
...ANSWER
Answered 2021-Aug-20 at 13:35To select element inside element you have to put a dot .
in front of the XPath expression saying "from here".
Otherwise it will bring you the first match of (//tr/td[@class='time']/span)[1]/text()
on the entire page each time, as you see.
Also, since you are iterating per each row
it should be row.xpath...
, not rows.xpath
since rows
is a list of elements while each row
is an element.
Also, to apply search on a web element according to XPath locator you should use find_element_by_xpath
method, not xpath
.
QUESTION
This is my first spider code. When I executed this code in my cmd. log shows that the urls are not even getting crawled and there were not DEBUG message in them. Can't be able to find any solution to this problem anywhere.. I am not able to understand what is wrong. can somebody help me with this.
My code:
...ANSWER
Answered 2021-Jun-21 at 13:16Note: As I do not have 50 reputation to comment that's why I am answering here.
The problem is in function naming, your function should be def start_requests(self)
instead of def start_request(self)
.
The first requests to perform are obtained by calling the start_requests() method which (by default) generates Request for the URLs. But, in your case it never gets into that function due to which the requests are never made for those URLs.
Your code after small change
QUESTION
I am currently building a small test project to learn how to use crontab
on Linux (Ubuntu 20.04.2 LTS).
My crontab file looks like this:
* * * * * sh /home/path_to .../crontab_start_spider.sh >> /home/path_to .../log_python_test.log 2>&1
What I want crontab to do, is to use the shell file below to start a scrapy project. The output is stored in the file log_python_test.log.
My shell file (numbers are only for reference in this question):
...ANSWER
Answered 2021-Jun-07 at 15:35I found a solution to my problem. In fact, just as I suspected, there was a missing directory to my PYTHONPATH. It was the directory that contained the gtts package.
Solution: If you have the same problem,
- Find the package
I looked at that post
- Add it to sys.path (which will also add it to PYTHONPATH)
Add this code at the top of your script (in my case, the pipelines.py):
QUESTION
I am trying to fetch the links from the scorecard column on this page...
I am using a crawlspider, and trying to access the links with this xpath expression....
...ANSWER
Answered 2021-May-26 at 10:50The key line in the log is this one
QUESTION
I have about 100 spiders on a server. Every morning all spiders start scraping and writing all of the logs in their logs. Sometimes a couple of them gives me an error. When a spider gives me an error I have to go to the server and read from log file but I want to read the logs from the mail.
I already set dynamic mail sender as follow:
...ANSWER
Answered 2021-May-08 at 07:57I have implemented a similar method in my web scraping module.
Below is the implementation you can look at and take reference from.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install robotstxt
A compatible platform (e.g. Windows, macOS, Linux, etc.). Most platforms are fully supported.
A compatible C++ compiler supporting at least C++11. Most major compilers are supported.
Git for interacting with the source code repository. To install Git, consult the Set Up Git guide on GitHub.
Although you are free to use your own build system, most of the documentation within this guide will assume you are using Bazel. To download and install Bazel (and any of its dependencies), consult the Bazel Installation Guide
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page