crawdad | Cross-platform persistent and distributed web crawler crab | Crawler library

 by   schollz Go Version: v3.1.1 License: MIT

kandi X-RAY | crawdad Summary

kandi X-RAY | crawdad Summary

crawdad is a Go library typically used in Automation, Crawler applications. crawdad has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

  crawdad is cross-platform web-crawler that can also pinch data. crawdad is persistent, distributed, and fast. It uses a queue stored in a remote Redis database to persist after interruptions and also synchronize distributed instances. Data extraction can be specified by the simple and powerful pluck syntax. For a tutorial on how to use crawdad see my blog post.
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            kandi-support Support

              crawdad has a low active ecosystem.
              It has 57 star(s) with 9 fork(s). There are 7 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 1 open issues and 9 have been closed. On average issues are closed in 1 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of crawdad is v3.1.1

            kandi-Quality Quality

              crawdad has no bugs reported.

            kandi-Security Security

              crawdad has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              crawdad is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              crawdad releases are available to install and integrate.
              Installation instructions, examples and code snippets are available.

            Top functions reviewed by kandi - BETA

            kandi has reviewed crawdad and discovered the below as its top functions. This is intended to give you an instant insight into crawdad implemented functionality, and help decide if they suit your requirements.
            • main creates a new app
            • Crawl starts crawling .
            • New returns a new Crawler instance .
            • round rounds a float to an int
            • SetLogLevel sets the log level .
            Get all kandi verified functions for this library.

            crawdad Key Features

            No Key Features are available at this moment for crawdad.

            crawdad Examples and Code Snippets

            Advanced usage
            Godot img1Lines of Code : 24dot img1License : Permissive (MIT)
            copy iconCopy
               --server value, -s value       address for Redis server (default: "localhost")
               --port value, -p value         port for Redis server (default: "6379")
               --url value, -u value          set base URL to crawl
               --exclude value, -e value      set   
            Run,Pinching
            Godot img2Lines of Code : 15dot img2License : Permissive (MIT)
            copy iconCopy
            [[pluck]]
            name = "description"
            activators = ["meta","name","description",'content="']
            deactivator = '"'
            limit = 1
            
            [[pluck]]
            name = "title"
            activators = [""]
            deactivator = ""
            limit = 1
            
            $ crawdad -set -url "https://rpiai.com" -pluck pluck.toml
            
            $ cra  
            Run,Crawling
            Godot img3Lines of Code : 3dot img3License : Permissive (MIT)
            copy iconCopy
            $ crawdad -set -url https://rpiai.com
            
            $ crawdad -server X.X.X.X
            
            $ crawdad -dump dump.txt
              

            Community Discussions

            QUESTION

            Scraping urls from multiple webpages
            Asked 2020-May-28 at 11:42

            I'm trying to extract URLs from multiple webpages (in this case 2) but for some reason, my output is a duplicate list of URLs extracted from the first page. What am I doing wrong?

            My code:

            ...

            ANSWER

            Answered 2020-May-28 at 11:42

            You are getting duplicate URLs because both times you are loading the same page. That website shows only the first page of best-sellers if you are not logged in, even if you set page=2.

            To fix this, you will have to either modify your code to login first before loading the pages, or to pass cookies that you have to import from a logged-in browser.

            Source https://stackoverflow.com/questions/62063350

            QUESTION

            How to create 3d boxes in matplotlib chart and count total number of point in each box?
            Asked 2020-Apr-07 at 20:13

            I have a 3d scatter chart as shown in the image. I have to divide the axis and create set of 3d boxes in chart and count total number of point in each 3d box. Can anybody tell me how to create 3d boxes in the chart and count number of points in every box.

            Here i have used crowd_temperature dataset to generate scatter plot.

            ...

            ANSWER

            Answered 2020-Apr-07 at 20:13

            You can do a 3D histogram using np.histogramdd() where you set up your bins along your x, y, and z axis. You can find the documentation on how to use the function here. If you would like more help in solving your problem please provide sample code.

            On another note, there are probably better ways to visualize your data. I think you will find it rather difficult to visualize this 3D histogram in a meaningful way. Try taking a latitude vs. temperature approach or just do a latitude vs. longitude histogram to see the spatial distribution of data.

            Source https://stackoverflow.com/questions/61071586

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install crawdad

            First get Docker CE. This will make installing Redis a snap. Then, if you have Go installed, just do. Otherwise, use the releases and download crawdad.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
            Find more information at:

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            CLONE
          • HTTPS

            https://github.com/schollz/crawdad.git

          • CLI

            gh repo clone schollz/crawdad

          • sshUrl

            git@github.com:schollz/crawdad.git

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