Python (programming language) was initially set at 2015 then postponed to 2020 out of concern that a large body of existing code could not easily be forward-ported to Python 3. In January 2017, Google announced work on a Python 2.7 to Go transcompiler to improve performance under concurrent workloads. Python is a multi-paradigm programming language. Object-oriented programming and structured programming are fully supported, and many of its features support functional programming and aspect-oriented programming (including by metaprogramming and metaobjects (magic methods)). Many other paradigms are supported via extensions, including design by contract and logic programming. Python uses dynamic typing, and a combination of
Yahoo! Yahoo Real Estate and Yahoo Travel, which enables users to gather relevant information and make commercial transactions and purchases online. Yahoo Auctions were discontinued in 2007 except for Asia. Yahoo Shopping is a price comparison service which uses the Kelkoo price comparison service it acquired in April 2004. Yahoo provides business services such as DomainKeys, Yahoo Merchant Solutions, Yahoo Business Email and Yahoo Store to small business owners and professionals allowing them to build their own online stores using Yahoo's tools. Yahoo Search Marketing provides services such as Sponsored Search, Local Advertising and Product/Travel/Directory Submit that let different businesses advertise