How do I scrape a value from a website?

Let's say I want to scrape the page view counter on a website.

I'll need to make an HTTP request to it, wait for a while, then print the value at the end.

I could use my favorite way to interact with HTTP, the urllib module and urllib. It might look something like this: import urllib.request import time urllib.urlretrieve("") counter = 0 def scrapecounter(): while True: try: url = "" page = urllib.urlopen(url) print(page.read()) except Exception as e: print(e) time.sleep(20)

Scrape counter function will just loop and keep asking for the page each 20 seconds until we eventually get our counter. The catch is we might have to wait a few minutes until we see our counter. This will be slow.

What we can do is to run multiple scrapes in parallel using a Pool or ThreadPool : import urllib.request import time import concurrent.futures def scrapecounter(): while True: url = "" page = urllib.urlopen(url) print(page.read()) except Exception as e: print(e) time.sleep(20) def scrapentimes(n): pool = concurrent.ThreadPoolExecutor(maxworkers=n) def loop(): scrapcounter() for in range(n): # execute concurrent requests (note: requests library must be >= 2.6 for it to work) pool.submit(scrapecounter) pool.shutdown() return

This is way faster, but it's not perfect. We need to explicitly shut down our pool after we're done scraping all the URLs: pool.shutdown() r We may need to tweak this code for the amount of memory it consumes (see here), but it's better to not run things for days or weeks in case of a server crash. What we can do now is to write a more general solution, which can just as easily scrape counters and other items from websites, as we demonstrated above with the URLLIB code.

Is price scraping illegal?

This is a discussion on ?

Within the Concealed Carry Issues & Discussions forums, part of the Defensive Carry Discussions category; I read an article in the paper the other day about someone being arrested for price scraping. The story said the guy was only .

I read an article in the paper the other day about someone being arrested for price scraping. The story said the guy was only sentenced to community service. It was very funny how he got arrested for price scraping.

I can't find the article now. He was arrested for price scraping. When he was arrested the officer said that he had no idea why he got arrested. I'm going to see if I can get a copy of the article.

Here's another link to the story: I've never heard of price scraping. It sounds like a form of identity theft.

If he did something to hurt someone, then it would be illegal and it would be more than just community service. He can't be charged with a crime. He didn't hurt anyone. He was only charged with 'price scraping'. If he is found guilty of price scraping he'll have to pay a fine, but there will be no criminal charges against him.

It was illegal to scrape the prices from a phone book in Virginia, I believe. That was what got me into this whole thing in the first place.

Is it legal to scrape data from websites?

I am planning on doing some web scraping with the intent to scrape data off of a website that I know has all of the information I need.

However, I do not want to be in violation of any laws or anything of that nature. Is it legal to scrape data off of a website? The site you are scraping may have terms and conditions which prohibit you from scraping the data. Alternatively, there may be terms and conditions which allow you to scrape the data. Either way, you should check whether you need to have the site's consent before scraping. Not necessarily, as you are potentially in breach of the site's Terms and Conditions. For example, if the site allows the scraping of its content in exchange for money, then this may be considered to be commercial use of their content. It is worth checking whether the site's terms and conditions actually forbid scraping, as it may be permitted under a different clause. There are laws that govern this kind of thing. If you are interested in making sure your scraping doesn't violate those laws, I suggest starting with reading the laws. For example, the United States' Copyright Law, 17 USC 115(a), says:

No person shall. Reproduce, by any means, including computer online access, any copyrighted work without the express permission of the. copyright owner. In other words, you can't make copies of copyrighted material without permission from the copyright owner. This includes books, movies, songs, paintings, sculptures, etc. It applies to websites.

This is a good place to start. It tells you what kinds of copying you can't do.

Next, you should read the terms and conditions that come with any website you plan on using. If you're planning to use a third-party API, you may need to sign a license agreement. If the website says you can't scrape the website, you will need to get permission.

How to scrape pricing from a website?

We have an app called MyVault.

MyVault is a platform to keep track of data about our customers, and it has a feature called Pricing. MyVault asks for the customer's email address when the user wants to view pricing for that product, and then it collects some information about the customer (name, phone number, etc) to match up to the email address and display the correct pricing.

My problem is that we want to make the website as 'scrobable' as possible. We have an iPad app, and I'm not sure what the best way is to scrape this data. I've already seen a few posts about how to do it using python and scraper, but they all seem a bit too complex and I'd like to avoid going through any extra steps of installing python on my macbook just to scrape one page. The closest I've found is this article, but it seems like an ugly hack.

I was thinking that perhaps the easiest way would be to take a look at the url of the page, and then replace certain parts with 'X'. But I'm not sure how I'd go about doing this.