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! Mail online post asking Yahoo to bring back mail tabs with one hundred thousand voting and nearly ten thousand commenting. The redesign produced a problem that caused an unknown number of users to lose access to their accounts for several weeks. In December 2013, Yahoo Mail suffered a major outage where approximately one million users, one percent of the site's total users, could not access their emails for several days. Mayer publicly apologized to the site's users. Yahoo! Mail China officially announced its shutdown on April 18, 2013. Users were warned that all emails, contacts, and account settings would be inaccessible,