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Python Twisted
Twisted is an event-driven network programming framework written in Python and licensed under the MIT License. Twisted projects variously support TCP, UDP, SSL/TLS, IP multicast, Unix domain sockets, many protocols (including HTTP, XMPP, NNTP, IMAP, SSH, IRC, FTP, and others), and much more. Twisted is based on the event-driven programming paradigm, which means that users of Twisted write short callbacks which are called by the framework. Core ideas Separation of protocols and transports Twisted is designed for complete separation between logical protocols (usually relying on stream-based connection semantics, such as HTTP or POP3) and transport layers supporting such stream-based semantics (such as files, sockets or SSL libraries). Connection between a logical protocol and a transport layer happens at the last possible moment — just before information is passed into the logical protocol instance. The logical protocol is informed of the transport layer instance, and can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glyph Lefkowitz
Glyph Lefkowitz is an American open-source software programmer and creator of the Twisted network programming framework for Python. His work on asynchronous programming techniques influenced the core Python language, as well as the JavaScript Promises ecosystem, through Dojo and Mochikit. He is a frequent speaker at developer conferences and was elected a fellow of the Python Software Foundation (PSF) in 2009. Between 2009 and 2013, he was one of the primary contributors of Apple An apple is a round, edible fruit produced by an apple tree (''Malus'' spp.). Fruit trees of the orchard or domestic apple (''Malus domestica''), the most widely grown in the genus, are agriculture, cultivated worldwide. The tree originated ...'s Calendar and Contacts Server (CCS) software. In 2017, the PSF awarded Lefkowitz their Community Service Award for his influence on the direction of the Python language and community, including his role in pioneering asynchronous programming models. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Callback (computer Science)
In computer programming, a callback is a Function (computer programming), function that is stored as data (a Reference (computer science), reference) and designed to be called by another function often ''back'' to the original Abstraction (computer science), abstraction layer. A function that accepts a callback Parameter (computer programming), parameter may be designed to call back before Return statement, returning to its caller which is known as ''Synchronization (computer science), synchronous'' or ''blocking''. The function that accepts a callback may be designed to store the callback so that it can be called back after returning which is known as ''asynchronous'', ''Non-blocking algorithm, non-blocking'' or ''deferred''. Programming languages support callbacks in different ways such as function pointers, Lambda (programming), lambda expressions and block (programming), blocks. A callback can be likened to leaving instructions with a tailor for what to do when a suit is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Canada
Air Canada is the flag carrier and the largest airline of Canada, by size and passengers carried. Air Canada is headquartered in the borough of Saint-Laurent in the city of Montreal. The airline, founded in 1937, provides scheduled and charter air transport for passengers and cargo to 222 destinations worldwide. It operates major hubs at Montréal–Trudeau, Toronto–Pearson and Vancouver. Air Canada is a founding member of the Star Alliance. Canada's national airline originated from the Canadian federal government's 1936 creation of Trans-Canada Air Lines ( TCA), which began operating its first transcontinental flight routes in 1938. In 1965, TCA was renamed Air Canada following government approval. After the deregulation of the Canadian airline market in the 1980s, the airline was privatized in 1988. On 4 January 2000, Air Canada took over its largest rival, Canadian Airlines. In 2003, the airline filed for bankruptcy protection and in the following year emerged ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ITA Software
ITA Software is a travel industry software division of Google, formerly an independent company, in Cambridge, Massachusetts. The company was founded by Jeremy Wertheimer, a computer scientist from the MIT Artificial Intelligence Laboratory and Cooper Union, with his partner Richard Aiken in 1996. On July 1, 2010, ITA agreed to be acquired by Google. On April 8, 2011, the US Department of Justice approved the buyout. As part of the agreement, Google was required to license ITA software to other websites for five years. History ITA's first product was an airfare search and pricing system called QPX. This system has been and is used by travel companies such as Bing Travel, CheapTickets, Kayak.com, and Orbitz, and by airlines such as Alitalia, American, ANA, Cape Air, Delta Air Lines, United Airlines, US Airways, and Virgin Atlantic. ITA also hosts its own airfare search website based on QPX, called "Matrix", although it is not possible to buy tickets from it. ITA was known ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BuildBot
Buildbot is a software development continuous integration tool which automates the compile or test cycle required to validate changes to the project code base. It began as a light-weight alternative to the Mozilla project's Tinderbox, and is now used by Python, WebKit, LLVM, Blender, ReactOS, and many other projects. Implementation Buildbot is written in Python on top of the Twisted libraries. SCM support , in version 2.10.1, Buildbot supports SCM integration with CVS, Subversion, Darcs, Mercurial, Bazaar, Git, Monotone, Repo/Gerrit, Perforce, and BitKeeper. See also * Build automation * Comparison of continuous integration software This is a compendium of software tools that support continuous integration. Features Version control support The following table compares notable continuous integration software on the basis of version control Version control (also k ... References External links * {{Software-eng-stub Compiling tools Con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graphical User Interface
A graphical user interface, or GUI, is a form of user interface that allows user (computing), users to human–computer interaction, interact with electronic devices through Graphics, graphical icon (computing), icons and visual indicators such as secondary notation. In many applications, GUIs are used instead of text-based user interface, text-based UIs, which are based on typed command labels or text navigation. GUIs were introduced in reaction to the perceived steep learning curve of command-line interfaces (CLIs), which require commands to be typed on a computer keyboard. The actions in a GUI are usually performed through direct manipulation interface, direct manipulation of the graphical elements. Beyond computers, GUIs are used in many handheld mobile devices such as MP3 players, portable media players, gaming devices, smartphones and smaller household, office and Distributed control system, industrial controls. The term ''GUI'' tends not to be applied to other lower-displa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PyObjC
PyObjC is a bidirectional bridge between the Python and Objective-C programming languages, allowing programmers to use and extend existing Objective-C libraries, such as Apple's Cocoa framework, using Python. PyObjC is used to develop macOS applications in pure Python. There is also limited support for GNUstep, an open source, cross-platform implementation of Cocoa. For Python programmers The most important usage of PyObjC is enabling programmers to create GUI applications using Cocoa libraries in pure Python. Moreover, as an effect of Objective-C's close relationship with the C programming language (it is a pure superset), developers are also able to incorporate any C-based API by wrapping it with an Objective-C wrapper and then using the wrapped code over the PyObjC bridge. Using Objective-C++, the same can be done with C%2B%2B libraries. For Objective-C programmers Cocoa developers may also benefit, as tasks written in Python generally take fewer lines than the Objecti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cocoa (API)
Cocoa is Apple's native object-oriented application programming interface (API) for its desktop operating system macOS. Cocoa consists of the Foundation Kit, Application Kit, and Core Data frameworks, as included by the Cocoa.h header file, and the libraries and frameworks included by those, such as the C standard library and the Objective-C runtime.Mac Technology Overview: OS X Frameworks Developer.apple.com. Retrieved on September 18, 2013. Cocoa applications are typically developed using the development tools provided by Apple, specifically Xcode (formerly [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Qt (framework)
Qt ( pronounced "cute") is a cross-platform application development framework for creating graphical user interfaces as well as Cross-platform software, cross-platform applications that run on various software and hardware platforms such as Linux, Windows, macOS, Android (operating system), Android or embedded systems with little or no change in the underlying codebase while still being a native application with native capabilities and speed. Qt is currently being developed by The Qt Company, a publicly listed company, and the Qt Project under open-source governance, involving individual developers and organizations working to advance Qt. Qt is available under both commercial licenses and open-source GNU General Public License, GPL 2.0, GPL 3.0, and GNU Lesser General Public License, LGPL 3.0 licenses. Purposes and abilities Qt is used for developing graphical user interfaces (GUIs) and multi-platform application software, applications that run on all major Desktop computer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GTK+
GTK (formerly GIMP ToolKit and GTK+) is a free software cross-platform widget toolkit for creating graphical user interfaces (GUIs). It is licensed under the terms of the GNU Lesser General Public License, allowing both free and proprietary software to use it. It is one of the most popular toolkits for the Wayland and X11 windowing systems. The GTK team releases new versions on a regular basis. GTK 4 and GTK 3 are maintained, while GTK 2 is end-of-life. GTK1 is independently maintained by the CinePaint project. Software architecture The GTK library contains a set of graphical control elements ( widgets); version 3.22.16 contains 186 active and 36 deprecated widgets. GTK is an object-oriented widget toolkit written in the programming language C; it uses GObject (that is, the GLib object system) for object orientation. While GTK is mainly used with windowing systems based on X11 and Wayland, it works on other platforms, including Microsoft Windows ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thread (computing)
In computer science, a thread of execution is the smallest sequence of programmed instructions that can be managed independently by a scheduler, which is typically a part of the operating system. In many cases, a thread is a component of a process. The multiple threads of a given process may be executed concurrently (via multithreading capabilities), sharing resources such as memory, while different processes do not share these resources. In particular, the threads of a process share its executable code and the values of its dynamically allocated variables and non- thread-local global variables at any given time. The implementation of threads and processes differs between operating systems. History Threads made an early appearance under the name of "tasks" in IBM's batch processing operating system, OS/360, in 1967. It provided users with three available configurations of the OS/360 control system, of which Multiprogramming with a Variable Number of Tasks (MVT) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IP Address
An Internet Protocol address (IP address) is a numerical label such as that is assigned to a device connected to a computer network that uses the Internet Protocol for communication. IP addresses serve two main functions: network interface identification, and location addressing. Internet Protocol version 4 (IPv4) was the first standalone specification for the IP address, and has been in use since 1983. IPv4 addresses are defined as a 32-bit number, which became too small to provide enough addresses as the internet grew, leading to IPv4 address exhaustion over the 2010s. Its designated successor, IPv6, uses 128 bits for the IP address, giving it a larger address space. Although IPv6 deployment has been ongoing since the mid-2000s, both IPv4 and IPv6 are still used side-by-side . IP addresses are usually displayed in a human-readable notation, but systems may use them in various different computer number formats. CIDR notation can also be used to designate how much ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
