Learn more about Teams By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Wikidata provides an SPARQL endpoint including a powerful Web-GUI since September 2015. Not the answer you're looking for? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Tools to setup an ElasticSearch instance fed with subsets of Wikidata. For example following query loads world cities with largest population. Python Link Wikidata items to large catalogs Python 92 8 SQID Public. Does the policy change for AI-generated content affect users who (want to) How to query Wikidata items using its labels? All of the data there is free (under the CC0 1.0 aka public domain) while anyone can edit and contribute to it. Citing my unpublished master's thesis in the article that builds on top of it. SPARQL enables us to retrieve those too which leads us to the next query: Remember that we said SPARQL consists mostly of joins? Rationale for sending manned mission to another star? bd:serviceParam mwapi:search "natural language processing". and then used it as a showcase for the pyLoDStorage library: And the output could be pasted here immediately as shown below. in a Pythonic way. Why recover database request archived log from the future, Citing my unpublished master's thesis in the article that builds on top of it. 33. Wikipedia is a multilingual online encyclopedia created and maintained as an open collaboration project by a community of volunteer editors using a wiki-based editing system. Two attempts of an if with an "and" are failing: if [ ] -a [ ] , if [[ && ]] Why? You just need to focus on the data that you need. Enabling a user to revert a hacked change in their email. Where is crontab's time command documented? Querying Wikidata We can also use the Wikidata Query Service (WDQS) endpoint to query Wikidata. All structured data from the main, Property, Lexeme, and EntitySchema namespaces is available under the. Note that the label is only retrieved for items that have a label in the particular language selected (in this case "en" for English), as there might be items that are not translated into this particular language. As the committer of http://wiki.bitplan.com/index.php/PyLoDStorage i'd recommend this library since it wraps sparqlwrapper in a way that you immediately get proper python types. This entity has property population with ID P1082 which contains citys population. This page is parsed by the web interface of the query service to fill the query example dialog. The result is returned as XML by default, or as JSON if either the query parameter format=json or the header Accept: application/sparql-results+json are provided. This can be done by using the FILTER NOT EXISTS clause which excludes all triples with statement node that have an end date. You will see that we get title (the WP article), page ID . For example, one of my Wikidata queries looks as follows. It is a powerful language to query Linked data and we can also use it to query Wikidata. The API supports besides XML and JSON also TSV, CSV and Binary RDF. If you hover over the properties and items in the editor you will get information about them and the editor additionally offers auto-completion. This page was last edited on 30 March 2023, at 09:46. For example, one of my Wikidata queries looks as follows. You want to get the one which has no end date. Connect and share knowledge within a single location that is structured and easy to search. ?statement ps:P186 ?material OPTIONAL { ?statement pq:P518 ?appliesTo } SERVICE wikibase:label { bd:serviceParam wikibase:language " [AUTO_LANGUAGE]" } } Share This page is not available in other languages. This page was last edited on 21 May 2023, at 23:06. There seems to be an even more mature python package called, paws-public.wmflabs.org/paws-public/User:Luitzen/Motto.ipynb, Building a safer community: Announcing our new Code of Conduct, Balancing a PhD program with a startup career (Ep. Is it possible to write unit tests in Applesoft BASIC? How to vertical center a TikZ node within a text line? In order to calculate his age, you can use the BIND expression. Page views: Get the page views from items, https://se.wikimedia.org/wiki/Projekt:Botacademy_2015, https://wikimania2016.wikimedia.org/wiki/Training_sessions/Proposals/Learn_to_use_Pywikibot_for_Wikidata_and_other_projects, https://www.wikidata.org/w/index.php?title=Wikidata:Pywikibot_-_Python_3_Tutorial&oldid=1891983574, Creative Commons Attribution-ShareAlike License, This user has an advanced understanding of the, Get the sum of pages in a category or namespace. Can I trust my bikes frame after I was hit by a car if there's no visible cracking? sparql query service. Currently data can be returned as a dataframe or as a map. Lets now explore other properties of the countries we have selected. Complete example can be loaded and run in your browser using Google Colab: https://colab.research.google.com/github/maxim75/data-visualization/blob/master/notebooks/query_wikidata.ipynb, SELECT DISTINCT ?cityLabel ?population ?gps, data = [{"name" : x["cityLabel"]["value"], "population" : int(x["population"]["value"])} for x in query_result["results"]["bindings"]]. After finishing the 3rd block, or if you are already experienced with running bots on Wikidata, you can award yourself the {{User Pywikibot professional}} badge. SPARQL extension for RoamResearch. Here is an unstructured list of resources that contain useful documentation, tutorials or examples that use Wikidata. The package defines a set of classes that allow you to represent Wikidata entities in a Pythonic way. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. The package defines a set of classes that allow you to represent Wikidata entities 2023 Python Software Foundation By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. In general relativity, how come Earth accelerate? Method 1: Using Wikipedia module. Here's my code snippet: See the documentation for a full outline of the package including usage and available data. Periodically (re)computed from Wikimedia pageviews, available for bulk download. What would have otherwise taken a lot of tedious research is now possible within a simple query on Wikidata with SPARQL. In the final part, you collect the birthplace, the birth date and the age of the mayor. This package allows to query the WikiData database. Contribute to dahlia/wikidata development by creating an account on GitHub. You start again with the query which you send to the SPARQL endpoint with the requests library: Now, you need convert the resulting JSON data to a Pandas DataFrame to work with the data further: With this dataset you can now explore the age of the mayors and the population of the capital they are serving: So the oldest mayor of a European capital seems to be housing in Madrid. In this article we will learn how to extract Wikipedia Data Using Python, Here we use two methods for extracting Data. Generate plots for results by cutting-and-pasting queries to. This package provides easy APIs to use Wikidata for Python. Thus you'll be able to get the data into other libaries such as pandas or work with csv, json, xml, sql or whatever your followup needs are. Donate today! Solar-electric system not generating rated power. How to parse WIkidata JSON (.bz2) file using Python? wptools is a python library intended to make it as easy as possible to get data from MediaWiki instances, expose more Wikidata, and extend Wikimedia APIs just for kicks. A language that is not only easy to learn, but also happens to be one of the most-used languages in the data-sciences. Thanks for contributing an answer to Stack Overflow! Asking for help, clarification, or responding to other answers. Is this yet another SQL derivative? As you can see, the statements read like a sentence (country is a member of the European Union). The output is also available in any format supported by the tabulate library such as mediawiki, latex and others. This is the recommended option for most users: This learning block focuses on setting up pywikibot, querying data, using functions, iteration and generators, and writing data to a file or database. GraphQL API allowing to interact with the Wikidata content. This page was last edited on 8 May 2023, at 08:43. Wikidata:Database reports/List of properties/Top100, Querying Wikidata About Viennas Tram Lines: An Introduction to SPARQL, How US Presidents Died According to Wikidata, An Ambitious Wikidata Tutorial SlideShare. Wikipedia Search App using Python and Tkinter (by PyCodeMates) Topic modelling with the Wikipedia API and the Gensim Library (by Usman Malik) If so, how can we integrate the queries in python? Has advanced user-friendly features such as: word hovering too see a term's meaning, code optimization, etc. You want to get to end time (P582) which is stored as a qualifier in the statement. To learn more, see our tips on writing great answers. You can see that Athens leads the exceptions with their current mayor (Giorgos Kaminis) born in New York, USA and Paris with their current mayor (Anne Hidalgo) born in San Fernando, Spain. OK, moving on. Wikidata provides an SPARQL endpoint including a powerful Web-GUI since September 2015. This structure will be important when you start to express queries with SPARQL. Its ambitious goal is to structure the whole human knowledge in a way that is machine readable and it speaks well to the vision of Tim Berners-Lee in his TED talk of 2009. Each entity has unique ID staring with Q followed by number, and number of properties with values. All structured data from the main, Property, Lexeme, and EntitySchema namespaces is available under the. Wikidata is a new Wikimedia project: It centralizes access to and management of structured data, such as interwiki references and statistical information. Does the policy change for AI-generated content affect users who (want to) How to parse/extract data from a mediawiki marked-up article via python, Get itemlabel in python from Wikidata API, How to get value of "extract" key from a Wikipedia JSON response. How does a government that uses undead labor avoid perverse incentives? This query can be executed using Wikidata Query Service. You signed in with another tab or window. I am currently using Wikidata Query Service to run my Wikidata queries. For an introduction, see the README file. Run, test, download the data as json, xml, csv or tsv. It also provides a Pythonic way to access three data sources, linked data interface; sparql query service; json dump; Quick Install Requirements. Thanks for reading! qwikidata is a Python package with tools that allow you to interact with Wikidata. What are all the times Gandalf was either late or early? Wikidata client library for Python. It is ideal for users with little or no experience in SPARQL, the powerful query language. Solar-electric system not generating rated power. It also discusses how queries can be shown on wiki pages, including either the full code of the query or a templated link. Lets install library using pip. Run SPARQL Queries upon Wikidata's wikibase. You can dig deeper in SPARQL/WIKIDATA Qualifiers, References and Ranks which describes the data representation in further detail. But you might ask, what are those Wikidata items? Get records for a list of multiple entities on Wikidata, Sparql Query for wikidata to get multiple values from property, SPARQL query to get several informations from a given wiki-ID. 105 25 I can use the following query to list all sovereign states via the Wikidata query interface: PREFIX wikibase: <http://wikiba.se/ontology#> PREFIX wd: <http://www.wikidata.org/entity/> PREFIX wdt: <http://www.wikidata.org/prop/direct/> SELECT ?cid ?country WHERE { ?cid wdt:P31 wd:Q3624078 . I would like to know if we can use these queries in a python program? One key difference is that in SQL you tend to avoid JOIN clauses as they can slow down queries, but in SPARQL the queries mostly consist of joins. An intelligent reading agent that understands text and translates it into Wikidata statements. EasyRdf Lite is a customized version of EasyRdf, created for Wikidata, now obsolete and replaced with Purtle, Tools related to the Wikidata project. This page is not available in other languages. We filter entities by ones having "instance type" (P31) or "subclass of" (P279) equal to "city" (Q515). Our goal is now to get for all countries, the capital, the population, the mayor, his birthday and finally his birthplace. See examples Install pip install wikidata_plain_sparql Usage The syntax is similar to SQL, but it has some differences for people trained in SQL. Elegant way to write a system of ODEs with a Matrix. Python 105 15 soweego Public. 92 576), AI/ML Tool examples part 3 - Title-Drafting Assistant, We are graduating the updated button styling for vote arrows. Consider adding a comment in the query noting what it illustrates, when and by whom it was written and which are its limitations given the . Interesting Work from the Community. "PyPI", "Python Package Index", and the blocks logos are registered trademarks of the Python Software Foundation. Since this data is stored in structured format, you can load that data by executing SPARQL query. Most of our core software is at https://github.com/wmde/. This is an update of the tutorial Wikidata:Creating a bot. After finishing the 2nd block award yourself the {{User Pywikibot advanced}} badge. Asking for help, clarification, or responding to other answers. Imagine you wanted to have a list of all sons of painters that were also painters or you wanted to know which mayor was born the furthest away. A JSON/JS index of 183 languages accessible either by their 2-letters language code or Wikidata Qid. This data would be of enormous interest to the Open Data community. A tool to analyse, browse and query Wikidata . You can create the request by adding the query as a parameter as follows. Python based Wikidata framework for easy dataframe extraction. To learn more, see our tips on writing great answers. Querying DBpedia from Python - Data Science Stack Exchange Querying DBpedia from Python [closed] Ask Question Asked 8 years, 4 months ago Modified 4 years, 2 months ago Viewed 15k times 3 Closed. Wikidata is a free and open knowledge base that can be read and edited by both humans and machines. Her you can see that each statement is such a join adding more links. For each item, you can select informations such as the title, the id and the language. The API endpoint URI is https://tptools.toolforge.org/wdql.php. Not the answer you're looking for? You have seen how to work with SPARQL and you can also download the resulting tables in the editor, but how do you automate the whole process? This tutorial uses JavaScript, Python, and the Flask framework. Douglas Adams is educated at the St Johns College). 74 Congratulations! Download the file for your platform. You can just read and try out the chapters that you are interested in. Since this data is stored in structured format, you can load that data by executing SPARQL query. From this variable, you can get the mayor with the ps: prefix. At this moment it contains more than 94 million entities. Connect and share knowledge within a single location that is structured and easy to search. By default this would return an XML, but if you want to use JSON as an output file, you can add this also to your request. rev2023.6.2.43474. rev2023.6.2.43474. The resulting query looks like this: Lets unpack what is happening here. We filter entities by ones having instance type (P31) or subclass of (P279) equal to city (Q515). Data can be loaded with python using mkwikidata library https://github.com/maxim75/mkwikidata. We say (for Humans) because that is a goal. Next, lets take a look at how far away mayors are born from the capital. Does substituting electrons with muons change the atomic shell configuration? The package defines a set of classes that allow you to represent Wikidata entities in a Pythonic way. Find centralized, trusted content and collaborate around the technologies you use most. There is DBpedia which is based on the info-boxes in Wikipedia, Friend of a Friend (FOAF) which is an ontology to describe relationships in social networks, GeoNames which provides a database with geographical names, Upper Mapping and Binding Exchange Layer (UMBEL) which is a knowledge graph of concepts and entities and a whole set of others, but Wikidata seems to be the most ambitious project between them. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, This question is not programming related, it is about the Wikidata API. Developed and maintained by the Python community, for the Python community. There are a bit more features. wikidata, Run query. Making statements based on opinion; back them up with references or personal experience. Word to describe someone who is ignorant of societal problems. With SPARQL you can extract any kind of data, with a query composed of logical combinations of triples. I was wondering how I should interpret the results of my molecular dynamics simulation, Why recover database request archived log from the future. Is it possible to write unit tests in Applesoft BASIC? You could have done that with wdt: as you already have learned but you want to go one step further. SPARQL queries can be submitted directly to the SPARQL endpoint with GET request to https://query.wikidata.org/bigdata/namespace/wdq/sparql?query={SPARQL} or the endpoint's alias https://query.wikidata.org/sparql?query={SPARQL}. Using Python and Pywikibot will allow the whole tutorial to be in one programming language. It is not currently accepting answers. Run SPARQL Queries upon Wikimedia Commons wikibase. Many of the examples also work in {{Wikidata list}} template calls parsed by the Listerbot, which however requires the ?item field variable to be selected.. There have been many projects preceding Wikidata. Wikidata: a free collaborative knowledge base. It is a powerful language to query Linked data and has been chosen for Wikidata. Surprisingly, the idea of the Semantic Web existed already in 2001 which was comprised of Linked Data. within the query. A language that is not only easy to learn, but also happens to be one of the most-used languages in the data-sciences. 3 SELECT ?sLabel { SERVICE wikibase:mwapi { bd:serviceParam wikibase:api "EntitySearch". For example for city of Sydney in Australia has ID Q3130. Want to improve this question? If you're not sure which to choose, learn more about installing packages. Would sending audio fragments over a phone call be considered a form of cryptology? Let's say we want to continue our research into spicy things by searching for information about hot sauces in Wikidata. For this expression, we subtract the year of the birth date with the current year. Anyone can edit this tutorial or ask questions on the different talk-pages. 338 all systems operational. You have packed the query in the query variable and you need to additionally supply requests with the SPARQL endpoint URL which is https://query.wikidata.org/sparql. 17, Examples showing how to use Wikidata Toolkit as a Maven library in your project, Java 44 Teams. Wikidata stores data in triples of the form (subject, predicate, object), so we'll start with a query that returns one such triple: SELECT * WHERE { ?subject ?predicate ?object } LIMIT 1 Admittedly it's not a very interesting triple, but we're off and running. This expression can be used to bind some expression to a variable (in our case the age variable). Q&A for work. pip install Wikidata coordinates = df[['capital_lon', 'capital_lat', Upper Mapping and Binding Exchange Layer (UMBEL), SPARQL/WIKIDATA Qualifiers, References and Ranks. This block consists of advanced examples that go beyond iterating over Wikidata and getting or setting statements. (, https://www.wikidata.org/w/index.php?title=Wikidata:Tools/For_programmers&oldid=1864522988, Creative Commons Attribution-ShareAlike License. If you take a look at Germany (Q183), then you can see a whole host of properties like population (P1082), median income (P3529) or even images with the image (P18) property. source, Uploaded It also provides a Pythonic way to access three data sources. There is a great SPARQL tutorial covering many of the things mentioned here and goes into much more depth into understanding SPARQL. While WikidataR doesn't support writing via the Wikibase Action API, it supports writing via, There are several API actions not (yet) supported by Wikibase Integrator. In this method, we will use the Wikipedia Module for Extracting Data. This video does a great job explaining the situation if you were puzzled. Alternatively, you can loop through the results to get all of them: 1. How to create a local Wikidata query service? It works in a similar way to Wikipedia and it is build on the work of contributors. Jul 30, 2020 Wikidata), Tool to track and revert edit groups on MediaWiki instances, Code for analysing Wikidata SPARQL query logs. The Query Builder doesn't offer SPARQL's full functionality, but you can always open your query in the Query Service, where you can view, edit or . Uploaded 576), AI/ML Tool examples part 3 - Title-Drafting Assistant, We are graduating the updated button styling for vote arrows. Interesting side-note: When running the query you will notice Kingdom of the Netherlands with Wikidata item Q29999 in the list of European countries. The goal is to create an intuitive interface so that Wikidata can function as a common read-write repository for public statistics. This will force it to output data on the Wikipedia articles linked from this query. # create an item representing "Douglas Adams", # create a property representing "subclass of", # send any sparql query to the wikidata query service and get full result back, # here we use an example that counts the number of humans, # use convenience function to get subclasses of an item as a list of item ids, """Return True if the Wikidata Item has occupation politician. Java From there the distances drop significantly. An intelligent reading agent that understands text and translates it into Wikidata statements. """, # create an iterable of WikidataItem representing politicians, # write the iterable of WikidataItem to disk as JSON, # load filtered entities and create instances of WikidataItem. Each property has a value, which can be again an item, text, number, date, or GPS coordinates among others. This includes for example the templates that are used on Wikidata. Wikidata Query Service in Python We'll use SPARQLWrapper to query Wikidata via Wikidata Query Service (WDQS) and Pandas (which is probably already installed) for working with the results: pip install sparqlwrapper In this query, this would be the countryLabel variable storing the label for the country variable. This is the ID that we need in order to query the API using the wbgetentities action. I am happy to provide more details if needed. Thank you and noted :), can you please add code to convert to data.frame, see my answer below - the list of dicts can be directly imported to pandas, How to integrate Wikidata query in python, http://wiki.bitplan.com/index.php/PyLoDStorage, http://www.wikidata.org/entity/Q104415642, http://www.wikidata.org/entity/Q105171570, https://ai.stackexchange.com/tags/speech-recognition, https://cs.stackexchange.com/tags/speech-recognition, https://dsp.stackexchange.com/tags/speech-recognition, https://linguistics.stackexchange.com/tags/speech-recognition, https://stackoverflow.com/tags/speech-recognition, https://unix.stackexchange.com/tags/speech-recognition, http://www.wikidata.org/entity/Q105330879, https://github.com/RaRe-Technologies/gensim, http://web.media.mit.edu/~hugo/montylingua/, https://github.com/moses-smt/mosesdecoder, http://www.nlplab.com/NiuPlan/NiuTrans.html, http://www.wikidata.org/entity/Q104840874, Building a safer community: Announcing our new Code of Conduct, Balancing a PhD program with a startup career (Ep. It is similar to how England is part of the United Kingdom. Hashes for Wikidata-.7.-py3-none-any.whl; Algorithm Hash digest; SHA256: 601ce7b4133c42ca82e63b4653829c4f825eae63fe537b304a418af060c486ec: Copy MD5 A good read covering the history and an overview of Wikidata can be found in the article Wikidata: a free collaborative knowledge base. Why is Bb8 better than Bc7 in this position? Is there a faster algorithm for max(ctz(x), ctz(y))? python >= 3.5 . A Python tool for fast inserts into a Wikibase instance. And using a seach engine for "Python + SPARQL" should show up, @AKSW Wasn't aware of it before. https://query.wikidata.org/bigdata/namespace/wdq/sparql?query={SPARQL}, Wikidata:SPARQL query service/queries/examples, Wikidata:SPARQL query service/queries/examples/advanced, Wikidata:SPARQL query service/queries/examples/human, Wikidata:SPARQL query service/queries/examples/maintenance, Queries from Wikidata status update weekly summaries, Querying Wikidata with SPARQL for Absolute Beginners, Wikidata:SPARQL query service/query optimization, https://query.wikidata.org/sparql?query={SPARQL}, https://people.wikimedia.org/~bearloga/notes/wdqs-python.html, Burial counts for Pre Lachaise cemetery by year, https://commons-query.wikimedia.org/sparql, Wikidata:SPARQL query service/Documentation, https://www.wikidata.org/w/index.php?title=Wikidata:SPARQL_query_service&oldid=1900759046, Creative Commons Attribution-ShareAlike License. Some features may not work without JavaScript. For example this package is intended for people who need to be able to query WikiData in plain SPARQL while staying whithin a Jupyter Notebook. Two attempts of an if with an "and" are failing: if [ ] -a [ ] , if [[ && ]] Why? The reason for this is that each country item that has no population, area or median income as a property is ignored by the query. Congratulations! Starting with the SELECT clause, you define the variables you want to get (variables are prefixed with a question mark). In Germany, does an academia position after Phd has an age limit? The following libraries either simplify an existing API, automatically resolve labels or provide property-specific functions. I have modified and extended your query a bit. Revision 20dee5b3. This learning block focuses on writing to Wikidata and comparing values between Wikipedia and Wikidata. OSI Approved :: GNU General Public License v3 or later (GPLv3+), Software Development :: Libraries :: Python Modules. Since you are dealing with linked data and not your usual relational data you need a different way to query the database (also called triplestore), but it is fairly similar and fairly straight forward to use. Now lets continue to the more advanced queries. Connect and share knowledge within a single location that is structured and easy to search. Next, you get to a more complicated part. The Wikidata Query Builder provides a visual interface for building a simple Wikidata query. Site map. The goal is to reach a level where you can run a bot to gather and edit information and transfer the information between other tools of your workflow. 21, Import entities from another Wikibase instance (e.g. Semantics of the `:` (colon) function in Bash when used in a pipe? After trying this query you will notice that the list of countries became shorter. Then, wikibase:geoLatitude and wikibase:geoLongitude are responsible for retrieving the latitude and longitude from the Value node respectively. json dump. For more information, take a look at the documentation for Precision, Units and Coordinates. SPARQL is a query language used to retrieve data stored as RDF (Resource Description Framework) and it is standardized by the W3C. The slash in p:P625/psv:P625 means that you continue to the Value node of the coordinate location (P625) without using a separate variable for the Statement node. Why is Bb8 better than Bc7 in this position? SPARQL? Javascript library that make queries easier. Perl module to import entities from Wikidata for processing with the Catmandu ETL framework. Most of the text is rewritten to be more expressive and accommodating to people with little or no programming experience. the population as in one of the previous queries) or various other data types. Using Python and Pywikibot will allow the whole tutorial to be in one programming language. RaiseWikibase 1) uploads up to a million entities and wikitexts per hour, 2) fills data directly into the MariaDB database, and 3) can create a bot account for the wrappers of the Wikibase API. It follows Relay specifications. Each value can have additional qualifiers which have additional information with other property-value pairs such as start time. You will also find a list of examples which are quite handy when starting fresh. This tutorial covers the basics of Wikidata and how to use the Wikidata Query Service. Find centralized, trusted content and collaborate around the technologies you use most. A Python tool for fast inserts into a Wikibase instance. After finishing the first three chapters award yourself the {{User Pywikibot basic}} badge. You can develop bots either online or offline. Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an AS IS BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. RDF data can alternatively be accessed via a Linked Data Fragments[1] interface at https://query.wikidata.org/bigdata/ldf. By the curly braces you can tell that you are getting a dictionary, whose keys are the Wikipedia language codes, and whose values are the current label in that language.In addition you can see the big advantage of Python 3: we get all the UTF-8 characters for free and the output is much more readable than for Farsi for example: {., u'fa': u'\u062f\u0627\u06af\u0644\u0627\u0633 \u0622\u062f . ShExStatements allows users to generate shape expressions (ShEx/entity schemas) from simple CSV statements and files. Focusing on Python 3 (emphasis on the version) will allow the tutorial a much more native approach to the multi-lingual nature of Wikidata. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Does anyone know if it is possible to download a complete dump of the Wikidata database? Simple Python CLI to load subsets of Wikidata into ElasticSearch from a dump or SPARQL query. If you plan on doing large queries, make sure to take a look at the publicly downloadable Wikidata dumps which are regularly updated dumps of the whole Wikidata data set and here is a documentation on the Wikibase data model. Congratulations! We'll use SPARQLWrapper to query Wikidata via Wikidata Query Service (WDQS) and Pandas (which is probably already installed) for working with the results: We'll want to specify WDQS's SPARQL endpoint ("https://query.wikidata.org/bigdata/namespace/wdq/sparql" or the alias "https://query.wikidata.org/sparql"): # From https://www.wikidata.org/wiki/Wikidata:SPARQL_query_service/queries/examples#Cats, SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }, https://query.wikidata.org/bigdata/namespace/wdq/sparql. You can install the most recent version using pip. For example following query loads world cities with largest population. Each of them has a list of statements, which are triples in the form SUBJECT - PREDICATE - OBJECT (e.g. In our final query, you will see where mayors are born by adding the coordinates to the query. You can do this by traversing to the statement node with the p: prefix and storing it in the statement variable. Feed the SPARQL query into tab 4 ("Other sources") and say "Use wiki: enwiki" at the bottom of this tab. How can an accidental cat scratch break skin but not damage clothes? How could I get more information from Wikidata? It can be used from both web interface as well as the command line. A page for interesting or illustrative queries. SPARQL is a query language used to retrieve data stored as RDF (Resource Description Framework) and it is standardized by the W3C. qwikidata is a Python package with tools that allow you to interact with Wikidata. See the License for the specific language governing permissions and limitations under the License. on Stackoverflow, or better said it's considered off-topic. If you are excited about Wikidata and want to contribute, there are Wikidata Tours that can guide you through the process. Is "different coloured socks" not correct? In this example, we want to list all countries in the European Union: You can try this query yourself here. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. This concludes this query. A ranking signal for Wikidata. I suggest you read. Quick Install Requirements python >= 3.5 Now you see in the table that you will find all countries again with more additional information: We continue our journey with a more complicated query which we will unpack step by step. If you generally have some feedback or want to collaborate, feel free to contact me. You can see on the left the classical path we took in our previous triples by using the wdt: prefix which leads to the value which can be another item, a numeric value (e.g. The editor there offers a handful of useful features. In Wikidata the subject is referred to an item and the predicate is referred to as property. Run SPARQL Queries upon LinguaLibre's wikibase. Wikidata is a free and collaborative Linked Open Data (LOD) knowledge base which can be edited by humans and machines. Finally, you will see a confusing part SERVICE wikibase:label { bd:serviceParam wikibase:language "en". } This opens up exciting new possibilities to do data science and exploratory data analysis and a fascinating new way to learn about relationships and curious findings in our accumulated human knowledge. The statement ?country wdt:P463 wd:Q458. Making statements based on opinion; back them up with references or personal experience. 1. 1 Answer Sorted by: 3 SELECT ?painting ?paintingLabel ?material ?materialLabel ?appliesTo ?appliesToLabel { VALUES (?painting) { (wd:Q12418)} ?painting p:P186 ?statement . qwikidata is a Python package with tools that allow you to interact with Wikidata. But it is also an extension into a fully independent short-course that will show you how to work with Python 3, Wikidata and Pywikibot to handle large datasets. Thanks @intentionally left blank, Im a little bit lost, I am reading the api documentation, hoping see something clear enough. This graph of the data representation shows the ways you can traverse it to get to various pieces of information with SPARQL starting from an item (in the graph shown as wd:Q1234).You can see on the left the classical path we . In case you want to do it without a SPARQL specific library: sparqlwrapper can handle that. This tutorial covers this topic if you are curious why we cant just use euclidean distance on GPS coordinates (spoiler: the earth is not flat). General Architecture for Text Engineering. RaiseWikibase 1) uploads up to a million entities and wikitexts per hour, 2) fills data directly into the MariaDB database, and 3) can create a bot account for the wrappers of the Wikibase API. Now hit "do it", wait a little while, (it took ~100s when I tested it) and examine the results. Offers a centralized, user-friendly way for The Community (TM) to provide translations for tools. Note that you can test and play with each query at https://query.wikidata.org/. If you take a look at an item like Rome (Q220), you will notice that there are various statements for the head of government (P6). See the user manual for more detailed information. Thanks for contributing an answer to Stack Overflow! How can I extract this data from JSON from API in Python? wikirepo is a Python package that provides a framework to easily source and leverage standardized Wikidata information. Create RDF triples from Wikidata JSON files. SPARQL (pronounced "sparkle") is an RDF query language, that is, a semantic query language for databases. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, it's not allowed to ask for tool, libs etc. I am currently using Wikidata Query Service to run my Wikidata queries. Note that you can still find holes, but as it is a community effort, this is growing and becoming better over time with every contribution. You can traverse to the qualifier with the pq: prefix which would give us the end date, but you want mayors without an end date. You have learned how to work with Wikidata and SPARQL and also how to integrate it with Python and Pandas. To access the structured data you can query Wikidata by using its SPARQL endpoint which enables you to run advanced queries, or by using its REST API. This request returns a JSON with all the rows collected from the query, which you can use to collect the rows into a Pandas DataFrame with this snippet: Lets explore the collected data visually and compare the various properties for each country: Great! First story of aliens pretending to be humans especially a "human" family (like Coneheads) that is trying to fit in, maybe for a long time? Wikidata client library for Python; Edit on GitHub; Wikidata client library for Python . bd:serviceParam wikibase:endpoint "www.wikidata.org". Official Wikimedia development of a GraphQL API inspired by Tpt's original implementation below. You just need to focus on the data that you need. Rationale for sending manned mission to another star? We can add the OPTIONAL clause which will leave those variables empty if the query cannot find triples within this clause: You can try this query here. The project started 2012 by the Wikimedia Foundation as an effort to centralize interwiki links, info-boxes and enable rich queries. I'm trying to obtain the id and label of all Wikidata properties where either the property's label or one of its "also known as" (alternative) labels equals/contains a given string (relation.label). Make sure to play a bit around with this query to get a better sense of it, since it did cover a wide variety of topics. To do this, you will employ the wonderful request module which does a great job at doing HTTP requests with all its necessary tooling. Please try enabling it if you encounter problems. by husky. To understand how to get to the mayor you have to look at the SPARQL Data Representation in this diagram: This does look confusing, but dont give up just yet. What control inputs to make if a wing falls off? Jul 30, 2020 Read more Search articles by location Learn how to use the MediaWiki API to search for Wikipedia articles near a specific location. Now import mkwikidata and run query using run_query() method: Lets convert response into array of dict objects with name and population keys using python list comprehension: Convert it into pandas DataFrame and create bar graph with cities: As you can see Delhi is now largest city on planet with population of more than 25 millions. Is there a legal reason that organizations often refuse to comment on an issue citing "ongoing litigation"? Is Spider-Man the only Marvel character that has been represented as multiple non-human characters? It returns table with 100 cities with its name in English, population (property P1082) and geographical coordinates (property P625). What is the name of the oscilloscope-like software shown in this screenshot? Copyright 2019, Kensho Technologies LLC The final interactive visualization can be found here and the complete code including this notebook can be found in this repository. # German states, ordered by the number of company headquarters per million inhabitants # Replace wd:Q1221156 (state of Germany) by anything else you care about, e.g., wd:Q6256 (country) # Nested queries for correctness (don't count companies twice) and performance (aggregate before adding more data) # Limits: states without population missing; company data in Wikidata is always incomplete . I write about all things data // data science / data engineering / data visualization / GIS // http://janakiev.com/, url = 'https://query.wikidata.org/sparql', r = requests.get(url, params = {'format': 'json', 'query': query}). by Vrandei, D., & Krtzsch, M. (2014). SPARQL (pronounced "sparkle") is an RDF query language, that is, a semantic query language for databases. Can I trust my bikes frame after I was hit by a car if there's no visible cracking? With the following code it is possible to extract data from entities in Wikidata: But going to the concepturi 'http://www.wikidata.org/entity/Q52 I see more information than reported here in the json file, specifically I am interested on motto text field. How to write guitar music that sounds like the lyrics. To calculate the distance you can use the distance() function and the meters (.m) attribute from the distance: Here you can see that most mayors tend to be mostly born in or close to the city where they later serve (note, that the chart is in log-scale). In order to get the latitude and longitude coordinates as variables, you need to add the following statements: In the first line, you traverse the graph of the previously shown data representation. This snippet is responsible for retrieving labels for the collected items into an additional variable with Label postfix in the specified language (in this case English). The syntax is similar to SQL, but it has some differences for people trained in SQL. But hang in there and lets take a look at such a query. 2. data ['search'] [0] ['id'] # select first search result ID. First, you start by getting the capital of the country which you simply get via the capital (P36) property. Focusing on Python 3 (emphasis on the version) will allow the tutorial a much more native approach to the multi-lingual nature of Wikidata. # 'Q95'. In this article, you will see how to build queries for Wikidata with Python and SPARQL by taking a look where mayors in Europe are born. 15, Python A (very) limited, visual, replacement for Wikidata Query which just does one claim, based on the 'linkshere' method of the Wikidata API. You also notice that there are the prefixes wd: and wdt: which are considered shortcut abbreviations in SPARQL (you can find a list of the built in prefixes here). Noisy output of 22 V to 5 V buck integrated into a PCB, Code works in Python IDE but not in QGIS Python editor. Based on Roam page, block, or custom query, imports data from Wikidata into RoamResearch, mapping properties and items to attributes and pages. On most (if not all) Wikipedia pages, there is a Wikidata Item link to its corresponding item in Wikidata, where you can find the linked information listed. For this, you can use the geopy package to calculate the distance between the coordinates. This question needs to be more focused. Read more on mediawiki.org These denote items with wd: and properties with wdt:. To get a list of all mayors in Europe in Wikidata, take a look at this script, which is more involved as it has to deal with some exceptions (like mayors born in countries that do not exist anymore) and the queries need to be done for each country separately because there is a limit on the queries. You can find more information here. Wikidata provides also a list of Tools for programmers. The first step is to find the unique identifier that Wikidata uses to reference "hot sauce", which we can do by searching on Wikidata. What one-octave set of notes is most comfortable for an SATB choir to sing in unison/octaves? A JavaScript helper package (using TypeScript) based on wikidata-sdk to easily query and process data. Wikidata Query Service: how do I search by item? Automatically paginates SPARQL queries for bulk loading. This graph of the data representation shows the ways you can traverse it to get to various pieces of information with SPARQL starting from an item (in the graph shown as wd:Q1234). 2. What is SPARQL. browse and query Wikidata TypeScript 74 Apache-2.0 17 30 (2 issues need help) 14 Updated Mar 6, 2023 . 8, A tool to analyse, browse and query Wikidata, TypeScript All structured data from the main, Property, Lexeme, and EntitySchema namespaces is available under the. Licensed under the Apache 2.0 License. In this diagram, you can see the structure of a Wikidata item. It also provides a Pythonic way to access three data sources, linked data interface. You can access the Wikidata SPARQL endpoint also with Python, which enables you to directly load and analyze the data you have queried. We will cover more complicated prefixes later on in this tutorial when you will get deeper into the SPARQL data representation. Wikidata is a great database that enables queries and discoveries that would not be possible with ordinary searches on your favorite search engine. Did an AI-enabled drone attack the human operator in a simulation environment? All the code for this article and the interactive visualization can be found in this repository. Simple Python CLI to load subsets of Wikidata into ElasticSearch from a dump or SPARQL query . I'm using this SPARQL client/API (with a somewhat contradicting description) in Python 3.x. This does look confusing, but don't give up just yet. About this tool. You can find me on Github, Twitter, LinkedIn or you can find my email on my homepage. The reader's interest in Wikidata might just be the reason that they want to learn programming. you may use wikidata python module qwikidata. With SPARQL you can extract any kind of data, with a query composed of logical combinations of triples. ontology. 96, Approve or reject statements from third-party datasets, 143 Copy PIP instructions, View statistics for this project via Libraries.io, or by using our public dataset on Google BigQuery, License: GNU General Public License v3 or later (GPLv3+) (GPLv3 or later), Tags 7, Status: Image from SPARQL/WIKIDATA Qualifiers, References and Ranks. This page is not available in other languages. Surprisingly, Netherlands (Q55) is a constituent country of the Kingdom of the Netherlands, but it is not a country. (this is an example more could be shown where the query outputs less info than contained in Wikidata). Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. In order to follow the course, you should have a few days or ideally a few weeks of Python 3 experience. Inside the WHERE clause, you set restrictions which mostly take the form of the triples you have seen previously. collects all items which have the property member of (P463) with object European Union (Q458) into the variable country. You can imagine those triples also as a filter constraining the triples that only match this query. Run, test, download the data as xml, json, csv or tsv. So, with the Wikidata API, you can, in a way query the Wikipedia content, but with wikipedia, you may not be able to query some of the data in wikidata. An effort to centralize interwiki links, info-boxes and enable rich queries 's interest in Wikidata ) the future many. Simple query on Wikidata which was comprised of Linked data and has been represented as non-human... I & # x27 ; t give up just yet more information, take a look at how away! Python CLI to load subsets of Wikidata into ElasticSearch from a dump or wikidata query python..: P463 wd: Q458, Creative Commons Attribution-ShareAlike License I search item! Ctz ( y ) ) text is rewritten to be one of the tutorial Wikidata: creating a.! I would like to know if we can also use it to output data on the work contributors! Million entities from another wikibase instance Python ; edit on GitHub ; Wikidata client library for Python edit. Programming language to vertical center a TikZ node within a single location that is and... With its name in English, population ( property P1082 ) and is. You already have learned how to parse Wikidata JSON (.bz2 ) file using Python Pandas... Structure will be important when you start by getting the capital of the query you see. ) is a Python tool for fast inserts into a wikibase instance all structured,. Side-Note: when running the query you will see that each statement is such a query language to... In structured format, you can dig deeper in SPARQL/WIKIDATA Qualifiers, references and Ranks which describes the data have... Unit tests in Applesoft BASIC look confusing, but it is not only easy to search JSON/JS Index 183. Existed already in 2001 which was comprised of Linked data and we can use. People with little or no programming experience provides also a list of European countries mwapi: &! Rewritten to be in one of the text is rewritten to be expressive! Predicate - OBJECT ( e.g this method, we are graduating the updated button for... Binary RDF powerful language to query Wikidata property, Lexeme, and number of properties with wdt.!, tutorials or examples that go wikidata query python iterating over Wikidata and getting or setting statements between the coordinates the... Are prefixed with a query ) knowledge base that can be found in this repository said it 's off-topic. For more information, take a look at such a join adding more links Im a little bit lost I! It works in a Pythonic way to access three data sources, data! Confusing part Service wikibase: language `` en ''. Open knowledge which... Interpret the results of my molecular dynamics simulation, why recover database request archived log the. Guide you through the results of my Wikidata queries looks as follows to list all in. That each statement is such a query revert a hacked change in their email can extract any of! Car if there 's no visible cracking tutorial Wikidata: creating a bot Wikipedia... ( LOD ) knowledge base which can be used to retrieve those too which leads us to those! In English, population ( property P1082 ) and it is similar SQL., examples showing how to use Wikidata into a wikibase instance ( e.g with... Now explore other properties of the United Kingdom 2-letters language code or Wikidata.... At 08:43 collaborate, feel free to contact me 2012 by the W3C for databases the current year Wikimedia:. Also happens to be one of the query or a templated Link the we... Enables us to retrieve those too which leads us to retrieve those too which leads us retrieve... And edited by both humans and machines processing & quot ; EntitySearch & quot ; language! Litigation '' of a graphql API allowing to interact with Wikidata your query a wikidata query python. To focus on the Wikipedia articles Linked from this query calculate the distance between the coordinates the! Each statement is such a join adding more links this example, one of the countries have... Don & # x27 ; m using this SPARQL client/API ( with a Matrix EXISTS clause which all! Block award yourself the { { user Pywikibot advanced } } badge be by., Python, which can be executed using Wikidata query Service Builder provides a to... Queries and discoveries that would not be possible with ordinary searches on your search..., Java 44 Teams node with the Catmandu ETL framework update of the Python.... Powerful language to query the API documentation, tutorials or examples that use Wikidata processing! Its labels 's thesis in the editor additionally offers auto-completion queries with SPARQL you can SELECT informations such as word... Just yet management of structured data, with a query language used to BIND expression. Variable ( in our case the age of the tutorial Wikidata: a... Oldid=1864522988, Creative Commons Attribution-ShareAlike License that is, a Semantic query,. Mar 6, 2023 pyLoDStorage library: and properties with values can I extract data... Sparql/Wikidata Qualifiers, references and Ranks which describes the data you have learned but might. That the list of European countries write a system of ODEs with a somewhat contradicting Description in. Consists mostly of joins the web interface as well as the command line statements based opinion. And Binary RDF most comfortable for an SATB choir to sing in unison/octaves get information about them and language. Should show up, @ AKSW was n't aware of it wikibase: endpoint & quot ; and also to... Said it 's considered off-topic wikidata query python programming experience here and goes into much more depth understanding. Change for AI-generated content affect users who ( want to go one step further and EntitySchema is. Existing API, automatically resolve labels or provide property-specific functions be shown where the query example.. Great database that enables queries and discoveries that would not be possible ordinary! The SELECT clause, you can extract any kind of data, with a somewhat contradicting Description ) in?! The W3C to easily source and leverage standardized Wikidata information do I search by item to as property,! With a Matrix were puzzled control inputs to make if a wing falls off better than Bc7 in this,!, here we use two methods for extracting data mayors are born by adding query... Like a sentence ( country is a Python package with tools that allow you represent! Are registered trademarks of the previous queries ) or subclass of ( P279 ) equal to city ( )! Or ideally a few days or ideally a few weeks of Python 3 experience,,! Queries can be returned as a common read-write repository for Public statistics ( for humans because! The query you will see where mayors are born by adding the query you will see a 's. Accessed via a Linked data and has been represented as multiple non-human characters what control inputs to make if wing. Make if a wing falls off interwiki references and Ranks which describes the data there a... The output could be pasted here immediately as shown below guide you through the to! England is part of the triples you have queried query Builder provides a visual interface for building simple! You need a visual interface for building a simple query on Wikidata form SUBJECT - PREDICATE - OBJECT (...., we subtract the year of the most-used languages in the statement node the! X ), Software development:: libraries:: GNU General Public License v3 or (... In Applesoft BASIC from simple CSV statements and files property-specific functions property-specific functions feel! Feed, copy and paste this URL into your RSS reader wikidata query python ( re ) computed from Wikimedia,... Ps: prefix and storing it in the statement? country wdt: data.... Of triples items to large catalogs Python 92 8 SQID Public project 2012... That Wikidata can function as a map Catmandu ETL framework ( colon ) function in Bash used! Of classes that allow you to interact with Wikidata as follows alternatively, you should a. Whole tutorial to be in one programming language (.bz2 ) file using Python and accommodating people. Of European countries ) equal to city ( Q515 ) yourself here tsv, CSV or tsv 17 30 2! Depth into understanding SPARQL translations for tools is Spider-Man the only Marvel character that been... The web interface as well as the command line `: ` ( )... Bd: serviceParam wikibase: geoLongitude are responsible for retrieving the latitude and from... And JSON also tsv, CSV or tsv (, https: //www.wikidata.org/w/index.php? title=Wikidata Tools/For_programmers... Used to BIND some expression to a more complicated part query at https: //query.wikidata.org/bigdata/ldf something clear.. Executed using Wikidata query Service to run my Wikidata queries the Wikidata query Service ( WDQS endpoint. Syntax is similar to SQL, but also happens to be in one programming language a visual for.: mwapi { bd: serviceParam wikibase: API & quot ; natural language processing & quot www.wikidata.org! Far away mayors are born by adding the query you will get information about them and the framework! Logical combinations of triples choir to sing in wikidata query python the ps: prefix storing... Iterating over Wikidata and getting or setting statements structured and easy to learn more, see our on. Request by adding the coordinates idea of the tutorial Wikidata: creating a bot client library Python. To make if a wing falls off its name in English, population ( property P1082 and. Call be considered a form of cryptology imagine those triples also as a in... Link Wikidata items using wikidata query python labels user-friendly features such as start time programming..