doc_id
int32
0
2.25M
text
stringlengths
101
8.13k
source
stringlengths
38
44
2,200
Although the laws of motion and universal gravitation became Newton's best-known discoveries, he warned against using them to view the Universe as a mere machine, as if akin to a great clock. He said, "So then gravity may put the planets into motion, but without the Divine Power it could never put them into such a circ...
https://en.wikipedia.org/wiki?curid=14627
2,201
Along with his scientific fame, Newton's studies of the Bible and of the early Church Fathers were also noteworthy. Newton wrote works on textual criticism, most notably "An Historical Account of Two Notable Corruptions of Scripture" and "". He placed the crucifixion of Jesus Christ at 3 April, AD 33, which agrees with...
https://en.wikipedia.org/wiki?curid=14627
2,202
He believed in a rationally immanent world, but he rejected the hylozoism implicit in Leibniz and Baruch Spinoza. The ordered and dynamically informed Universe could be understood, and must be understood, by an active reason. In his correspondence, Newton claimed that in writing the "Principia" "I had an eye upon such ...
https://en.wikipedia.org/wiki?curid=14627
2,203
Newton's position was vigorously defended by his follower Samuel Clarke in a famous correspondence. A century later, Pierre-Simon Laplace's work "Celestial Mechanics" had a natural explanation for why the planet orbits do not require periodic divine intervention. The contrast between Laplace's mechanistic worldview and...
https://en.wikipedia.org/wiki?curid=14627
2,204
Scholars long debated whether Newton disputed the doctrine of the Trinity. His first biographer, David Brewster, who compiled his manuscripts, interpreted Newton as questioning the veracity of some passages used to support the Trinity, but never denying the doctrine of the Trinity as such. In the twentieth century, enc...
https://en.wikipedia.org/wiki?curid=14627
2,205
Newton and Robert Boyle's approach to the mechanical philosophy was promoted by rationalist pamphleteers as a viable alternative to the pantheists and enthusiasts, and was accepted hesitantly by orthodox preachers as well as dissident preachers like the latitudinarians. The clarity and simplicity of science was seen as...
https://en.wikipedia.org/wiki?curid=14627
2,206
The attacks made against pre-Enlightenment "magical thinking", and the mystical elements of Christianity, were given their foundation with Boyle's mechanical conception of the universe. Newton gave Boyle's ideas their completion through mathematical proofs and, perhaps more importantly, was very successful in popularis...
https://en.wikipedia.org/wiki?curid=14627
2,207
In a manuscript he wrote in 1704 (never intended to be published), he mentions the date of 2060, but it is not given as a date for the end of days. It has been falsely reported as a prediction. The passage is clear when the date is read in context. He was against date setting for the end of days, concerned that this wo...
https://en.wikipedia.org/wiki?curid=14627
2,208
In the character of Morton Opperly in "Poor Superman" (1951), speculative fiction author Fritz Leiber says of Newton, "Everyone knows Newton as the great scientist. Few remember that he spent half his life muddling with alchemy, looking for the philosopher's stone. That was the pebble by the seashore he really wanted t...
https://en.wikipedia.org/wiki?curid=14627
2,209
Of an estimated ten million words of writing in Newton's papers, about one million deal with alchemy. Many of Newton's writings on alchemy are copies of other manuscripts, with his own annotations. Alchemical texts mix artisanal knowledge with philosophical speculation, often hidden behind layers of wordplay, allegory,...
https://en.wikipedia.org/wiki?curid=14627
2,210
In 1888, after spending sixteen years cataloguing Newton's papers, Cambridge University kept a small number and returned the rest to the Earl of Portsmouth. In 1936, a descendant offered the papers for sale at Sotheby's. The collection was broken up and sold for a total of about £9,000. John Maynard Keynes was one of a...
https://en.wikipedia.org/wiki?curid=14627
2,211
All of Newton's known writings on alchemy are currently being put online in a project undertaken by Indiana University: "The Chymistry of Isaac Newton" and summarised in a book.
https://en.wikipedia.org/wiki?curid=14627
2,212
Charles Coulston Gillispie disputes that Newton ever practised alchemy, saying that "his chemistry was in the spirit of Boyle's corpuscular philosophy."
https://en.wikipedia.org/wiki?curid=14627
2,213
In June 2020, two unpublished pages of Newton's notes on Jan Baptist van Helmont's book on plague, "De Peste", were being auctioned online by Bonhams. Newton's analysis of this book, which he made in Cambridge while protecting himself from London's 1665–1666 infection, is the most substantial written statement he is kn...
https://en.wikipedia.org/wiki?curid=14627
2,214
The mathematician Joseph-Louis Lagrange said that Newton was the greatest genius who ever lived, and once added that Newton was also "the most fortunate, for we cannot find more than once a system of the world to establish." English poet Alexander Pope wrote the famous epitaph:
https://en.wikipedia.org/wiki?curid=14627
2,215
In a 2005 survey of members of Britain's Royal Society (formerly headed by Newton) asking who had the greater effect on the history of science, Newton or Albert Einstein, the members deemed Newton to have made the greater overall contribution. In 1999, an opinion poll of 100 of the day's leading physicists voted Einste...
https://en.wikipedia.org/wiki?curid=14627
2,216
Woolsthorpe Manor is a Grade I listed building by Historic England through being his birthplace and "where he discovered gravity and developed his theories regarding the refraction of light".
https://en.wikipedia.org/wiki?curid=14627
2,217
In 1816, a tooth said to have belonged to Newton was sold for £730 (3,633) in London to an aristocrat who had it set in a ring. "Guinness World Records 2002" classified it as the most valuable tooth, which would value approximately £25,000 (35,700) in late 2001. Who bought it and who currently has it has not been discl...
https://en.wikipedia.org/wiki?curid=14627
2,218
Newton himself often told the story that he was inspired to formulate his theory of gravitation by watching the fall of an apple from a tree. The story is believed to have passed into popular knowledge after being related by Catherine Barton, Newton's niece, to Voltaire. Voltaire then wrote in his "Essay on Epic Poetry...
https://en.wikipedia.org/wiki?curid=14627
2,219
Although it has been said that the apple story is a myth and that he did not arrive at his theory of gravity at any single moment, acquaintances of Newton (such as William Stukeley, whose manuscript account of 1752 has been made available by the Royal Society) do in fact confirm the incident, though not the apocryphal ...
https://en.wikipedia.org/wiki?curid=14627
2,220
John Conduitt, Newton's assistant at the Royal Mint and husband of Newton's niece, also described the event when he wrote about Newton's life:
https://en.wikipedia.org/wiki?curid=14627
2,221
It is known from his notebooks that Newton was grappling in the late 1660s with the idea that terrestrial gravity extends, in an inverse-square proportion, to the Moon; however, it took him two decades to develop the full-fledged theory. The question was not whether gravity existed, but whether it extended so far from ...
https://en.wikipedia.org/wiki?curid=14627
2,222
Various trees are claimed to be "the" apple tree which Newton describes. The King's School, Grantham claims that the tree was purchased by the school, uprooted and transported to the headmaster's garden some years later. The staff of the (now) National Trust-owned Woolsthorpe Manor dispute this, and claim that a tree p...
https://en.wikipedia.org/wiki?curid=14627
2,223
Newton's monument (1731) can be seen in Westminster Abbey, at the north of the entrance to the choir against the choir screen, near his tomb. It was executed by the sculptor Michael Rysbrack (1694–1770) in white and grey marble with design by the architect William Kent. The monument features a figure of Newton reclinin...
https://en.wikipedia.org/wiki?curid=14627
2,224
From 1978 until 1988, an image of Newton designed by Harry Ecclestone appeared on Series D £1 banknotes issued by the Bank of England (the last £1 notes to be issued by the Bank of England). Newton was shown on the reverse of the notes holding a book and accompanied by a telescope, a prism and a map of the Solar System...
https://en.wikipedia.org/wiki?curid=14627
2,225
A statue of Isaac Newton, looking at an apple at his feet, can be seen at the Oxford University Museum of Natural History. A large bronze statue, "Newton, after William Blake", by Eduardo Paolozzi, dated 1995 and inspired by Blake's etching, dominates the piazza of the British Library in London. A bronze statue of Newt...
https://en.wikipedia.org/wiki?curid=14627
2,226
The still-surviving farmhouse at Woolsthorpe By Colsterworth is a Grade I listed building by Historic England through being his birthplace and "where he discovered gravity and developed his theories regarding the refraction of light".
https://en.wikipedia.org/wiki?curid=14627
2,227
Enlightenment philosophers chose a short history of scientific predecessors—Galileo, Boyle, and Newton principally—as the guides and guarantors of their applications of the singular concept of nature and natural law to every physical and social field of the day. In this respect, the lessons of history and the social st...
https://en.wikipedia.org/wiki?curid=14627
2,228
It is held by European philosophers of the Enlightenment and by historians of the Enlightenment that Newton's publication of the "Principia" was a turning point in the Scientific Revolution and started the Enlightenment. It was Newton's conception of the universe based upon natural and rationally understandable laws th...
https://en.wikipedia.org/wiki?curid=14627
2,229
Limonene is a colorless liquid aliphatic hydrocarbon classified as a cyclic monoterpene, and is the major component in the oil of citrus fruit peels. The -isomer, occurring more commonly in nature as the fragrance of oranges, is a flavoring agent in food manufacturing. It is also used in chemical synthesis as a precurs...
https://en.wikipedia.org/wiki?curid=1779163
2,230
Limonene takes its name from Italian "limone" ("lemon"). Limonene is a chiral molecule, and biological sources produce one enantiomer: the principal industrial source, citrus fruit, contains -limonene ((+)-limonene), which is the ("R")-enantiomer. Racemic limonene is known as dipentene. -Limonene is obtained commercial...
https://en.wikipedia.org/wiki?curid=1779163
2,231
Limonene is a relatively stable monoterpene and can be distilled without decomposition, although at elevated temperatures it cracks to form isoprene. It oxidizes easily in moist air to produce carveol, carvone, and limonene oxide. With sulfur, it undergoes dehydrogenation to "p"-cymene.
https://en.wikipedia.org/wiki?curid=1779163
2,232
Limonene occurs commonly as the ("R")-enantiomer, but racemizes to dipentene at 300 °C. When warmed with mineral acid, limonene isomerizes to the conjugated diene α-terpinene (which can also easily be converted to "p"-cymene). Evidence for this isomerization includes the formation of Diels–Alder adducts between α-terpi...
https://en.wikipedia.org/wiki?curid=1779163
2,233
It is possible to effect reaction at one of the double bonds selectively. Anhydrous hydrogen chloride reacts preferentially at the disubstituted alkene, whereas epoxidation with mCPBA occurs at the trisubstituted alkene.
https://en.wikipedia.org/wiki?curid=1779163
2,234
In another synthetic method Markovnikov addition of trifluoroacetic acid followed by hydrolysis of the acetate gives terpineol.
https://en.wikipedia.org/wiki?curid=1779163
2,235
In nature, limonene is formed from geranyl pyrophosphate, via cyclization of a neryl carbocation or its equivalent as shown. The final step involves loss of a proton from the cation to form the alkene.
https://en.wikipedia.org/wiki?curid=1779163
2,236
The most widely practiced conversion of limonene is to carvone. The three-step reaction begins with the regioselective addition of nitrosyl chloride across the trisubstituted double bond. This species is then converted to the oxime with a base, and the hydroxylamine is removed to give the ketone-containing carvone.
https://en.wikipedia.org/wiki?curid=1779163
2,237
-Limonene is a major component of the aromatic scents and resins characteristic of numerous coniferous and broadleaved trees: red and silver maple ("Acer rubrum", "Acer saccharinum"), cottonwoods ("Populus angustifolia"), aspens ("Populus grandidentata", "Populus tremuloides") sumac ("Rhus glabra"), spruce ("Picea" spp...
https://en.wikipedia.org/wiki?curid=1779163
2,238
-Limonene applied to skin may cause irritation from contact dermatitis, but otherwise appears to be safe for human uses. Limonene is flammable as a liquid or vapor and it is toxic to aquatic life.
https://en.wikipedia.org/wiki?curid=1779163
2,239
Limonene is common as a dietary supplement and as a fragrance ingredient for cosmetics products. As the main fragrance of citrus peels, -limonene is used in food manufacturing and some medicines, such as a flavoring to mask the bitter taste of alkaloids, and as a fragrance in perfumery, aftershave lotions, bath product...
https://en.wikipedia.org/wiki?curid=1779163
2,240
Limonene is used as a solvent for cleaning purposes, such as adhesive remover, or the removal of oil from machine parts, as it is produced from a renewable source (citrus essential oil, as a byproduct of orange juice manufacture). It is used as a paint stripper and is also useful as a fragrant alternative to turpentine...
https://en.wikipedia.org/wiki?curid=1779163
2,241
Limonene is also used as a solvent for fused filament fabrication based 3D printing. Printers can print the plastic of choice for the model, but erect supports and binders from High Impact Polystyrene (HIPS), a polystyrene plastic that is easily soluble in limonene.
https://en.wikipedia.org/wiki?curid=1779163
2,242
In preparing tissues for histology or histopathology, -limonene is often used as a less toxic substitute for xylene when clearing dehydrated specimens. Clearing agents are liquids miscible with alcohols (such as ethanol or isopropanol) and with melted paraffin wax, in which specimens are embedded to facilitate cutting ...
https://en.wikipedia.org/wiki?curid=1779163
2,243
Python is a high-level, general-purpose programming language. Its design philosophy emphasizes code readability with the use of significant indentation.
https://en.wikipedia.org/wiki?curid=23862
2,244
Python is dynamically-typed and garbage-collected. It supports multiple programming paradigms, including structured (particularly procedural), object-oriented and functional programming. It is often described as a "batteries included" language due to its comprehensive standard library.
https://en.wikipedia.org/wiki?curid=23862
2,245
Guido van Rossum began working on Python in the late 1980s as a successor to the ABC programming language and first released it in 1991 as Python 0.9.0. Python 2.0 was released in 2000 and introduced new features such as list comprehensions, cycle-detecting garbage collection, reference counting, and Unicode support. P...
https://en.wikipedia.org/wiki?curid=23862
2,246
Python was conceived in the late 1980s by Guido van Rossum at Centrum Wiskunde & Informatica (CWI) in the Netherlands as a successor to the ABC programming language, which was inspired by SETL, capable of exception handling (from the start plus new capabilities in Python 3.11) and interfacing with the Amoeba operating ...
https://en.wikipedia.org/wiki?curid=23862
2,247
Python 2.0 was released on 16 October 2000, with many major new features. Python 3.0, released on 3 December 2008, with many of its major features backported to Python 2.6.x and 2.7.x. Releases of Python 3 include the codice_1 utility, which automates the translation of Python 2 code to Python 3.
https://en.wikipedia.org/wiki?curid=23862
2,248
Python 2.7's end-of-life was initially set for 2015, then postponed to 2020 out of concern that a large body of existing code could not easily be forward-ported to Python 3. No further security patches or other improvements will be released for it. Currently only 3.7 and later are supported. In 2021, Python 3.9.2 and 3...
https://en.wikipedia.org/wiki?curid=23862
2,249
In 2022, Python 3.10.4 and 3.9.12 were expedited and 3.8.13, and 3.7.13, because of many security issues. When Python 3.9.13 was released in May 2022, it was announced that the 3.9 series (joining the older series 3.8 and 3.7) will only receive security fixes going forward. On September 7, 2022, four new releases were ...
https://en.wikipedia.org/wiki?curid=23862
2,250
The deprecated codice_2 module has been removed from Python 3.12 (alpha). And a number of other old, broken and deprecated functions (e.g. from codice_3 module), classes and methods have been removed. The deprecated codice_4 and codice_5 length members of the C implementation of Unicode objects were removed, to make UT...
https://en.wikipedia.org/wiki?curid=23862
2,251
Python is a multi-paradigm programming language. Object-oriented programming and structured programming are fully supported, and many of their features support functional programming and aspect-oriented programming (including metaprogramming and metaobjects). Many other paradigms are supported via extensions, including...
https://en.wikipedia.org/wiki?curid=23862
2,252
Python uses dynamic typing and a combination of reference counting and a cycle-detecting garbage collector for memory management. It uses dynamic name resolution (late binding), which binds method and variable names during program execution.
https://en.wikipedia.org/wiki?curid=23862
2,253
Its design offers some support for functional programming in the Lisp tradition. It has functions; list comprehensions, dictionaries, sets, and generator expressions. The standard library has two modules ( and ) that implement functional tools borrowed from Haskell and Standard ML.
https://en.wikipedia.org/wiki?curid=23862
2,254
Its core philosophy is summarized in the document "The Zen of Python" ("PEP 20"), which includes aphorisms such as:
https://en.wikipedia.org/wiki?curid=23862
2,255
Rather than building all of its functionality into its core, Python was designed to be highly extensible via modules. This compact modularity has made it particularly popular as a means of adding programmable interfaces to existing applications. Van Rossum's vision of a small core language with a large standard library...
https://en.wikipedia.org/wiki?curid=23862
2,256
Python strives for a simpler, less-cluttered syntax and grammar while giving developers a choice in their coding methodology. In contrast to Perl's "there is more than one way to do it" motto, Python embraces a "there should be one—and preferably only one—obvious way to do it" philosophy. Alex Martelli, a Fellow at the...
https://en.wikipedia.org/wiki?curid=23862
2,257
Python's developers strive to avoid premature optimization and reject patches to non-critical parts of the CPython reference implementation that would offer marginal increases in speed at the cost of clarity. When speed is important, a Python programmer can move time-critical functions to extension modules written in l...
https://en.wikipedia.org/wiki?curid=23862
2,258
Python's developers aim for it to be fun to use. This is reflected in its name—a tribute to the British comedy group Monty Python—and in occasionally playful approaches to tutorials and reference materials, such as examples that refer to spam and eggs (a reference to a Monty Python sketch) instead of the standard foo, ...
https://en.wikipedia.org/wiki?curid=23862
2,259
A common neologism in the Python community is "pythonic", which has a wide range of meanings related to program style. "Pythonic" code may use Python idioms well, be natural or show fluency in the language, or conform with Python's minimalist philosophy and emphasis on readability. Code that is difficult to understand ...
https://en.wikipedia.org/wiki?curid=23862
2,260
Python users and admirers, especially those considered knowledgeable or experienced, are often referred to as "Pythonistas".
https://en.wikipedia.org/wiki?curid=23862
2,261
Python is meant to be an easily readable language. Its formatting is visually uncluttered and often uses English keywords where other languages use punctuation. Unlike many other languages, it does not use curly brackets to delimit blocks, and semicolons after statements are allowed but rarely used. It has fewer syntac...
https://en.wikipedia.org/wiki?curid=23862
2,262
Python uses whitespace indentation, rather than curly brackets or keywords, to delimit blocks. An increase in indentation comes after certain statements; a decrease in indentation signifies the end of the current block. Thus, the program's visual structure accurately represents its semantic structure. This feature is s...
https://en.wikipedia.org/wiki?curid=23862
2,263
The assignment statement (codice_6) binds a name as a reference to a separate, dynamically-allocated object. Variables may subsequently be rebound at any time to any object. In Python, a variable name is a generic reference holder without a fixed data type; however, it always refers to "some" object with a type. This i...
https://en.wikipedia.org/wiki?curid=23862
2,264
Python does not support tail call optimization or first-class continuations, and, according to Van Rossum, it never will. However, better support for coroutine-like functionality is provided by extending Python's generators. Before 2.5, generators were lazy iterators; data was passed unidirectionally out of the generat...
https://en.wikipedia.org/wiki?curid=23862
2,265
In Python, a distinction between expressions and statements is rigidly enforced, in contrast to languages such as Common Lisp, Scheme, or Ruby. This leads to duplicating some functionality. For example:
https://en.wikipedia.org/wiki?curid=23862
2,266
Statements cannot be a part of an expression—so list and other comprehensions or lambda expressions, all being expressions, cannot contain statements. A particular case is that an assignment statement such as cannot form part of the conditional expression of a conditional statement. This has the advantage of avoiding a...
https://en.wikipedia.org/wiki?curid=23862
2,267
Methods on objects are functions attached to the object's class; the syntax is, for normal methods and functions, syntactic sugar for . Python methods have an explicit codice_67 parameter to access instance data, in contrast to the implicit self (or codice_68) in some other object-oriented programming languages (e.g., ...
https://en.wikipedia.org/wiki?curid=23862
2,268
Python uses duck typing and has typed objects but untyped variable names. Type constraints are not checked at compile time; rather, operations on an object may fail, signifying that it is not of a suitable type. Despite being dynamically typed, Python is strongly typed, forbidding operations that are not well-defined (...
https://en.wikipedia.org/wiki?curid=23862
2,269
Python allows programmers to define their own types using classes, most often used for object-oriented programming. New instances of classes are constructed by calling the class (for example, or ), and the classes are instances of the metaclass codice_69 (itself an instance of itself), allowing metaprogramming and refl...
https://en.wikipedia.org/wiki?curid=23862
2,270
Before version 3.0, Python had two kinds of classes (both using the same syntax): "old-style" and "new-style", current Python versions only support the semantics new style.
https://en.wikipedia.org/wiki?curid=23862
2,271
The long-term plan is to support gradual typing. Python's syntax allows specifying static types, but they are not checked in the default implementation, CPython. An experimental optional static type-checker, "mypy", supports compile-time type checking.
https://en.wikipedia.org/wiki?curid=23862
2,272
Python has the usual symbols for arithmetic operators (codice_29, codice_30, codice_31, codice_33), the floor division operator codice_32 and the modulo operation codice_49 (where the remainder can be negative, e.g. codice_76). It also has codice_34 for exponentiation, e.g. codice_78 and codice_79, and a matrix‑multipl...
https://en.wikipedia.org/wiki?curid=23862
2,273
The division between integers produces floating-point results. The behavior of division has changed significantly over time:
https://en.wikipedia.org/wiki?curid=23862
2,274
In Python terms, codice_33 is "true division" (or simply "division"), and codice_32 is "floor division." codice_33 before version 3.0 is "classic division".
https://en.wikipedia.org/wiki?curid=23862
2,275
Rounding towards negative infinity, though different from most languages, adds consistency. For instance, it means that the equation is always true. It also means that the equation is valid for both positive and negative values of codice_92. However, maintaining the validity of this equation means that while the result...
https://en.wikipedia.org/wiki?curid=23862
2,276
Python provides a codice_96 function for rounding a float to the nearest integer. For tie-breaking, Python 3 uses round to even: codice_97 and codice_98 both produce codice_99. Versions before 3 used round-away-from-zero: codice_100 is codice_101, codice_102 is codice_103.
https://en.wikipedia.org/wiki?curid=23862
2,277
Python allows boolean expressions with multiple equality relations in a manner that is consistent with general use in mathematics. For example, the expression codice_104 tests whether codice_92 is less than codice_94 and codice_94 is less than codice_108. C-derived languages interpret this expression differently: in C,...
https://en.wikipedia.org/wiki?curid=23862
2,278
Python uses arbitrary-precision arithmetic for all integer operations. The codice_111 type/class in the codice_112 module provides decimal floating-point numbers to a pre-defined arbitrary precision and several rounding modes. The codice_113 class in the codice_114 module provides arbitrary precision for rational numbe...
https://en.wikipedia.org/wiki?curid=23862
2,279
Due to Python's extensive mathematics library, and the third-party library NumPy that further extends the native capabilities, it is frequently used as a scientific scripting language to aid in problems such as numerical data processing and manipulation.
https://en.wikipedia.org/wiki?curid=23862
2,280
Python's large standard library provides tools suited to many tasks and is commonly cited as one of its greatest strengths. For Internet-facing applications, many standard formats and protocols such as MIME and HTTP are supported. It includes modules for creating graphical user interfaces, connecting to relational data...
https://en.wikipedia.org/wiki?curid=23862
2,281
Some parts of the standard library are covered by specifications—for example, the Web Server Gateway Interface (WSGI) implementation codice_115 follows PEP 333—but most are specified by their code, internal documentation, and test suites. However, because most of the standard library is cross-platform Python code, only...
https://en.wikipedia.org/wiki?curid=23862
2,282
Most Python implementations (including CPython) include a read–eval–print loop (REPL), permitting them to function as a command line interpreter for which users enter statements sequentially and receive results immediately.
https://en.wikipedia.org/wiki?curid=23862
2,283
Python also comes with an Integrated development environment (IDE) called IDLE, which is more beginner-oriented.
https://en.wikipedia.org/wiki?curid=23862
2,284
Other shells, including IDLE and IPython, add further abilities such as improved auto-completion, session state retention, and syntax highlighting.
https://en.wikipedia.org/wiki?curid=23862
2,285
As well as standard desktop integrated development environments, there are Web browser-based IDEs, including SageMath, for developing science- and math-related programs; PythonAnywhere, a browser-based IDE and hosting environment; and Canopy IDE, a commercial IDE emphasizing scientific computing.
https://en.wikipedia.org/wiki?curid=23862
2,286
CPython is the reference implementation of Python. It is written in C, meeting the C89 standard (Python 3.11 uses C11) with several select C99 features (With later C versions out, it is considered outdated. CPython includes its own C extensions, but third-party extensions are not limited to older C versions—e.g. they c...
https://en.wikipedia.org/wiki?curid=23862
2,287
There are several compilers to high-level object languages, with either unrestricted Python, a restricted subset of Python, or a language similar to Python as the source language:
https://en.wikipedia.org/wiki?curid=23862
2,288
Performance comparison of various Python implementations on a non-numerical (combinatorial) workload was presented at EuroSciPy '13. Python's performance compared to other programming languages is also benchmarked by The Computer Language Benchmarks Game.
https://en.wikipedia.org/wiki?curid=23862
2,289
Python's development is conducted largely through the "Python Enhancement Proposal" (PEP) process, the primary mechanism for proposing major new features, collecting community input on issues, and documenting Python design decisions. Python coding style is covered in PEP 8. Outstanding PEPs are reviewed and commented o...
https://en.wikipedia.org/wiki?curid=23862
2,290
Enhancement of the language corresponds with the development of the CPython reference implementation. The mailing list python-dev is the primary forum for the language's development. Specific issues were originally discussed in the Roundup bug tracker hosted at by the foundation. In 2022, all issues and discussions wer...
https://en.wikipedia.org/wiki?curid=23862
2,291
CPython's public releases come in three types, distinguished by which part of the version number is incremented:
https://en.wikipedia.org/wiki?curid=23862
2,292
Many alpha, beta, and release-candidates are also released as previews and for testing before final releases. Although there is a rough schedule for each release, they are often delayed if the code is not ready. Python's development team monitors the state of the code by running the large unit test suite during develop...
https://en.wikipedia.org/wiki?curid=23862
2,293
The major academic conference on Python is PyCon. There are also special Python mentoring programs, such as Pyladies.
https://en.wikipedia.org/wiki?curid=23862
2,294
Python 3.10 deprecated codice_4 (to be removed in Python 3.12; meaning Python extensions need to be modified by then), and added pattern matching to the language.
https://en.wikipedia.org/wiki?curid=23862
2,295
Tools that can generate documentation for Python API include pydoc (available as part of the standard library), Sphinx, Pdoc and its forks, Doxygen and Graphviz, among others.
https://en.wikipedia.org/wiki?curid=23862
2,296
Python's name is derived from the British comedy group Monty Python, whom Python creator Guido van Rossum enjoyed while developing the language. Monty Python references appear frequently in Python code and culture; for example, the metasyntactic variables often used in Python literature are "spam" and "eggs" instead of...
https://en.wikipedia.org/wiki?curid=23862
2,297
The prefix "Py-" is used to show that something is related to Python. Examples of the use of this prefix in names of Python applications or libraries include Pygame, a binding of SDL to Python (commonly used to create games); PyQt and PyGTK, which bind Qt and GTK to Python respectively; and PyPy, a Python implementatio...
https://en.wikipedia.org/wiki?curid=23862
2,298
Since 2003, Python has consistently ranked in the top ten most popular programming languages in the TIOBE Programming Community Index where, , it is the most popular language (ahead of Java, and C). It was selected Programming Language of the Year (for "the highest rise in ratings in a year") in 2007, 2010, 2018, and 2...
https://en.wikipedia.org/wiki?curid=23862
2,299
An empirical study found that scripting languages, such as Python, are more productive than conventional languages, such as C and Java, for programming problems involving string manipulation and search in a dictionary, and determined that memory consumption was often "better than Java and not much worse than C or C++".
https://en.wikipedia.org/wiki?curid=23862