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
Criticism of Yahoo! could be increased or decreased based on Yahoo!'s immediate revenue needs, according to some former employees in Yahoo!'s sales department. Yahoo!, along with Google China, Microsoft, Cisco, AOL, Skype, Nortel and others, has cooperated with the Communist Party of China in implementing a system of Internet censorship in mainland China. Unlike Google or Microsoft, which generally keep confidential records of its users outside mainland China, Yahoo! stated that the company cannot protect the privacy and confidentiality of its mainland Chinese customers from the authorities. Critics say that the companies put profits before principles. Human Rights Watch and Reporters Without Borders