frontera | A scalable frontier for web crawlers | Pub Sub library

 by   scrapinghub Python Version: 0.8.1 License: BSD-3-Clause

kandi X-RAY | frontera Summary

kandi X-RAY | frontera Summary

frontera is a Python library typically used in Retail, Messaging, Pub Sub applications. frontera has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has high support. You can install using 'pip install frontera' or download it from GitHub, PyPI.

Frontera is a web crawling framework consisting of crawl frontier, and distribution/scaling primitives, allowing to build a large scale online web crawler. Frontera takes care of the logic and policies to follow during the crawl. It stores and prioritises links extracted by the crawler to decide which pages to visit next, and capable of doing it in distributed manner.
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            kandi-support Support

              frontera has a highly active ecosystem.
              It has 1231 star(s) with 219 fork(s). There are 167 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 79 open issues and 75 have been closed. On average issues are closed in 305 days. There are 19 open pull requests and 0 closed requests.
              OutlinedDot
              It has a negative sentiment in the developer community.
              The latest version of frontera is 0.8.1

            kandi-Quality Quality

              frontera has 0 bugs and 0 code smells.

            kandi-Security Security

              frontera has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              frontera code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              frontera is licensed under the BSD-3-Clause License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              frontera releases are available to install and integrate.
              Deployable package is available in PyPI.
              Build file is available. You can build the component from source.
              Installation instructions are not available. Examples and code snippets are available.
              frontera saves you 5711 person hours of effort in developing the same functionality from scratch.
              It has 11945 lines of code, 1392 functions and 184 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed frontera and discovered the below as its top functions. This is intended to give you an instant insight into frontera implemented functionality, and help decide if they suit your requirements.
            • Create the version file
            • Install versioneer
            • Read data from the server
            • Run git commands
            • Return the next available requests
            • Add ordering to queue
            • Remove n pages from the stream
            • Extract the object from the heap
            • Create a test site
            • Schedules the given batch
            • Get the lag for this topic
            • Filters extracted links
            • Decode a decoded message
            • Called when the response is crawled
            • Get next available requests
            • Handle an OffsetFetchResponse
            • Get next request
            • Setup the environment
            • Return the version information
            • Main entry point
            • Run the consumer
            • Get the next available requests
            • Run the spider
            • Return a generator of count messages
            • Read seeds from a stream
            • Handle a group coordinator response
            Get all kandi verified functions for this library.

            frontera Key Features

            No Key Features are available at this moment for frontera.

            frontera Examples and Code Snippets

            copy iconCopy
            from obtener_grupos_fisicos import grupos_fisicos, obtener_nodos
            
            malla = 'scordelis.msh'
            
            # Obtener todos los grupos físicos de la malla:
            dict_nombres, dict_nodos = grupos_fisicos(malla)
            print('Grupos físicos reportados:\n')
            for tag in dict_nombres.  
            DeepSZ,Install Caffe/PyCaffe (via Anaconda)
            Pythondot img2Lines of Code : 18dot img2License : Non-SPDX (NOASSERTION)
            copy iconCopy
            wget https://repo.anaconda.com/archive/Anaconda3-2020.02-Linux-x86_64.sh
            bash Anaconda3-2020.02-Linux-x86_64.sh
            
            conda create -n deepsz_env
            conda activate deepsz_env
            conda install protobuf glog gflags hdf5 openblas boost snappy leveldb lmdb pkgconfig  
            DeepSZ,Download Validation Dataset and DNN Model
            Pythondot img3Lines of Code : 4dot img3License : Non-SPDX (NOASSERTION)
            copy iconCopy
            wget https://eecs.wsu.edu/~dtao/deepsz/caffenet_pruned.caffemodel
            
            wget https://eecs.wsu.edu/~dtao/deepsz/imagenet_mean.binaryproto
            wget https://eecs.wsu.edu/~dtao/deepsz/ilsvrc12_val_lmdb.tar.gz
            tar -xzvf ilsvrc12_val_lmdb.tar.gz
              
            Does anyone know why exactly I get this error in my python code and how to correct it?
            Pythondot img4Lines of Code : 2dot img4License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            yr = solve_ivp(sec_lotes,t_sim,{V_inicial[0],V_inicial[1],V_inicial[2],V_inicial[3]},method='RK45')
            
            Dataframe group columns to nested json
            Pythondot img5Lines of Code : 17dot img5License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            s = df.groupby(['COMUNIDAD','PROVINCIA'])['EMPLAZAMIENTO'].agg(list)
            
            d = {level: s.xs(level).to_dict() for level in s.index.levels[0]}
            print (d)
            {'ANDALUCIA': {'ALMERIA': ['ALMERIA', 'EJIDO, EL', 
                                       'HUERCAL OVERA
            copy iconCopy
            # -*- coding: UTF-8 -*-
            from selenium import webdriver
            from selenium.webdriver.common.by import By
            from selenium.webdriver.support.ui import WebDriverWait
            from selenium.webdriver.support import expected_conditions as EC
            from selenium.commo
            no module named recording while trying to record the scrapy crawl
            Pythondot img7Lines of Code : 17dot img7License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            SPIDER_MIDDLEWARES.update({
                'frontera.contrib.scrapy.middlewares.recording.CrawlRecorderSpiderMiddleware': 1000,
            })
            
            DOWNLOADER_MIDDLEWARES.update({
            'frontera.contrib.scrapy.middlewares.recording.CrawlRecorderDownloaderMiddleware': 100
            Plotting scatter in symlog scale deforms figure - PyPlot
            Pythondot img8Lines of Code : 4dot img8License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            plt.yscale('log')
            
            df2.plot(kind='line', ...)
            

            Community Discussions

            QUESTION

            Does anyone know why exactly I get this error in my python code and how to correct it?
            Asked 2021-Dec-29 at 22:33

            When I run the code below, I get this error:

            ...

            ANSWER

            Answered 2021-Dec-29 at 21:12

            V_inicial[0],V_inicial[1],V_inicial[2],V_inicial[3] should be an array, I have never use that function but I have been looking to the docummentation that you can read here:

            https://docs.scipy.org/doc/scipy/reference/generated/scipy.integrate.solve_ivp.html

            The function identifies V_inicial[0] as the y0 param and V_inicial[1] as the method param and when you write method='RK45' you are defining another value to method param. Try to use an array, and tell me about :)).

            Source https://stackoverflow.com/questions/70524962

            QUESTION

            How can I filter rows which contains less than 3 whitespaces in a column? (R)
            Asked 2021-Aug-03 at 15:27

            I have tried multiple reg exp for resolving this problem but none of them is correct.

            I have a data frame like this:

            ...

            ANSWER

            Answered 2021-Aug-03 at 13:29
            subset(df, nchar(gsub(pattern = "\\S", "", df$Name)) < 3)
                                  Name
            1 Antonio Garcia Fernandez
            2            Mark Wahlberg
            

            Source https://stackoverflow.com/questions/68636673

            QUESTION

            Dataframe group columns to nested json
            Asked 2020-Oct-23 at 12:59

            I want to output a dataframe by grouping by the first 2 columns in a dictionary format. This is my dataframe:

            ...

            ANSWER

            Answered 2020-Oct-23 at 12:59

            Use GroupBy.agg for lists and then create nested dictionary:

            Source https://stackoverflow.com/questions/64500181

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

            Vulnerabilities

            No vulnerabilities reported

            Install frontera

            You can install using 'pip install frontera' or download it from GitHub, PyPI.
            You can use frontera like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

            Support

            Main documentation at RTDEuroPython 2015 slidesBigDataSpain 2015 slides
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            Install
          • PyPI

            pip install frontera

          • CLONE
          • HTTPS

            https://github.com/scrapinghub/frontera.git

          • CLI

            gh repo clone scrapinghub/frontera

          • sshUrl

            git@github.com:scrapinghub/frontera.git

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