[FREE eBook] Python Web Scraping at Packtpub - Today Only

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payton on 18/09/2018 - 11:13 packtpub.com (700 clicks)
Last edited 20/09/2018 - 02:00 by 1 other user

Gday Ozbargain

From today 18/9 to Wed 19/9 9:59am, the free ebook at Packtpub is
Python Web Scraping

For those interested in making a second Price Hipster for yourself, or just improving your code-Fu
Packt Publishing is a legit publisher. Easy to make a free account and the books are DRM free and they give you many options to choose: ePub, PDF, mobi etc
Maybe call it the Price Socialist so socialists are known for more than just whirling a storm in a teacup and wrecking stores during riots when they're not happy about some 'globalisation' problem :)

Every day at 10am they'd have a new book for free, so bookmark this to be opened on your coffee break!

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  DesiBoy on 18/09/2018 - 11:29

  +2

  just a note: Web Scraping is not allowed by all the websites. Web Scraping could lead to serious legal issues if done without permission of the website.

  • 

    homersyd on 18/09/2018 - 11:34

    that's a valid point, however why would any websites would allow other people to scrap their data?

  • 

    jv on 18/09/2018 - 11:39

    +2

    legal issues if done without permission of the website.

    Why would you need permission to view a site that has been published to the public and not secured?

    • 

      DesiBoy on 18/09/2018 - 11:54

      Doesnt matter if the site is secured or not, you can still scrap the data.

    • 

      payton on 18/09/2018 - 12:06

      IIRC PriceHipster cannot scrape all sites because some don't allow pricing info for thousands of their products to be grabbed daily, and available for use by the public and their competitors.

      But scrapers can take more than just prices (eg images) which can be a legal problem

      • 

        jv on 18/09/2018 - 12:31

        +1

        But scrapers can take more than just prices (eg images) which can be a legal problem

        That has nothing to do with scraping, you can do that by just downloading the image manually too…

      • 

        [Deactivated] on 18/09/2018 - 13:44

        +2

        But scrapers can take more than just prices (eg images) which can be a legal problem

        See i don't see how even scraping an image can be a legal problem. If you used the image without permission, that's another thing (nothing to do with scraping). But downloading an image using a scraper is no different to visiting that webpage, everything you view in a browser is downloaded, which is no different.

      • 

        payton on 18/09/2018 - 13:53

        @supabrudda:
        True, if you just scrape a site for personal use and not for business its most likely fine

  • 

    [Deactivated] on 18/09/2018 - 13:27

    +2

    What sort of serious legal issues ?

    I'd be interested in what law they're using. Under The Cybercrime Act in most states, its basically unauthorised access to a restricted system and also intent. So if you're scraping publically available data, then I doubt the public prosecutor would entertain that.

    Sure they could legally bully you (like in the US companies have done with copyright infringements), but anyone can do that to anyone and it doesn't mean it's illegal.

    • 

      DesiBoy on 18/09/2018 - 13:44

      Someone can be legally held if they scrap the website and use that data for commercial purposes without the consent of the actual website owner.

      • 

        [Deactivated] on 18/09/2018 - 13:51

        +2

        Right, but that's totally different. Thats just basic copyright theft, nothing to do with scraping per se. It's not how you procured the data (in your example scraping), its the fact you've committed an offence with the data you've acquired.

      • 

        DesiBoy on 18/09/2018 - 14:00

        @supabrudda: Web scraping can cause issues like slow the website by sending much more request than as anticipated per second. Also you have mentioned copyright theft, this is a bigger issue as well. It goes back to what is the intent of web scrapping. Even doing for fun can cause other website to slowdown this itself can be seen as part of Denial of Service attack.

      • 

        [Deactivated] on 18/09/2018 - 14:16

        @DesiBoy: oh you're just making it up now.

        But please do point me in the direction where someone got into legal hotwater from causing a website to slowdown by scraping?

        Dare I say it, anyone who has a website which can be bought down by a single person scraping, wouldn't be able to afford Saul Goodman to send you a cease & desist letter, let alone afford any proper legal representation. And then there's nothing illegal about it.

        If you were using it as part of a DDOS attack, then it's no the scraping that's illegal, it's your intention to do harm, financial or otherwise to the business/website owner which is illegal, and they'll probably pursue you for loss of income, damages, loss of income, etc. But they won't ping you for scraping.

      • 

        DesiBoy on 18/09/2018 - 14:27

        @supabrudda: Yes, you are right it comes down to intention or purpose of scrapping but how to justify that the intent was only for entertainment.

      • 

        [Deactivated] on 18/09/2018 - 16:31

        @DesiBoy: no you're wrong, you are making it up.

        Your original comment "Web Scraping is not allowed by all the websites. Web Scraping could lead to serious legal issues" and follow up comments are just plain wrong. You've just made it up.

        The act of scraping will not get you into any legal trouble, let alone into lead to serious legal issues

        Stop scaremongering.

• 

  payton on 18/09/2018 - 11:35

  I remember 20+ years ago there were already Windows software than can scrape the entire website structure and files
  The robot can pretend to be a browser too
  They'd probably have a giant disclaimer every time its run now.

  • 

    MaxiPower on 18/09/2018 - 13:24

    It wasn't Xenu's Link Sleuth by any chance?
    http://home.snafu.de/tilman/xenulink.html

    • 

      payton on 18/09/2018 - 13:58

      The name escapes me but deff not that one

  • 

    digitizer on 18/09/2018 - 21:47

    WebZip, offline explorer.. the days when web was simple

    • 

      payton on 19/09/2018 - 10:25

      Found it, Teleport Pro it was

  • 

    jonathonsunshine on 19/09/2018 - 08:20

    GetRight could do that iirc

    • 

      payton on 19/09/2018 - 10:24

      haha Getright
      Brings back memories
      Remembered it, it was Teleport Pro

• 

  johnyBgood on 18/09/2018 - 12:34

  +1

  Direct download here: https://www.packtpub.com/ebook_download/29279/pdf

  • 

    Crownanchor on 18/09/2018 - 13:17

    Looks like the link expired

    • 

      [Deactivated] on 18/09/2018 - 15:12

      +2

      bugmenot has some logins with this book & many others (lots of python books) in the collection.

      • 

        Crownanchor on 18/09/2018 - 20:32

        Thanks , worked, that was so neat.

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  digitizer on 18/09/2018 - 19:37

  Trust it to have an error on the title page.. Misspelt Selenium…