Python (programming language) - Revision history

imported>Arjunaraoc: /* Design philosophy and features */ Fixed grammar

2025-12-20T01:54:23Z

Design philosophy and features: Fixed grammar

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imported>Hooman Mallahzadeh: Memory management in Infobox.

2025-11-20T06:14:42Z

Memory management in Infobox.

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imported>Erictleung: Undid revision 1297037589 by Zaamin Khan (talk) Context for GIL is important to understand PEP feature

2025-06-23T21:33:34Z

Undid revision 1297037589 by Zaamin Khan (talk) Context for GIL is important to understand PEP feature

← Previous revision		Revision as of 21:33, 23 June 2025
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	All alternative implementations have at least slightly different semantic. For example, an alternative may include unordered dictionaries<!-- like with Codon; also PyPy? Cython? -->, in contrast to other current Python versions. As another example in the larger Python ecosystem, PyPy does not support the full C Python API. Alternative implementations include the following:		All alternative implementations have at least slightly different semantic. For example, an alternative may include unordered dictionaries<!-- like with Codon; also PyPy? Cython? -->, in contrast to other current Python versions. As another example in the larger Python ecosystem, PyPy does not support the full C Python API. Alternative implementations include the following:

	* [[PyPy]] is a fast, compliant interpreter of Python 2.7 and <!-- 3.8 (both are outdated CPython versions) --> 3.10.<ref name="AutoNT-70"/><ref>{{Cite web\|last=Team\|first=The PyPy\|date=2019-12-28\|title=Download and Install\|url=https://www.pypy.org/download.html\|access-date=2022-01-08\|website=PyPy\|language=en\|archive-date=8 January 2022\|archive-url=https://web.archive.org/web/20220108212951/https://www.pypy.org/download.html\|url-status=live}}</ref> PyPy's [[just-in-time compiler]] often improves speed significantly relative to CPython, but PyPy does not support some libraries written in C.<ref name="AutoNT-71"/> PyPy offers support for the [[RISC-V]] instruction-set architecture~~, for example~~.		* [[PyPy]] is a fast, compliant interpreter of Python 2.7 and <!-- 3.8 (both are outdated CPython versions) --> 3.10.<ref name="AutoNT-70"/><ref>{{Cite web\|last=Team\|first=The PyPy\|date=2019-12-28\|title=Download and Install\|url=https://www.pypy.org/download.html\|access-date=2022-01-08\|website=PyPy\|language=en\|archive-date=8 January 2022\|archive-url=https://web.archive.org/web/20220108212951/https://www.pypy.org/download.html\|url-status=live}}</ref> PyPy's [[just-in-time compiler]] often improves speed significantly relative to CPython, but PyPy does not support some libraries written in C.<ref name="AutoNT-71"/> PyPy offers support for the [[RISC-V]] instruction-set architecture.
	* Codon is an implentation with an [[ahead-of-time compilation\|ahead-of-time (AOT) compiler]], which compiles a statically-typed Python-like language whose "syntax and semantics are nearly identical to Python's, there are some notable differences"<ref>{{Cite web \|title=Codon: Differences with Python \|url=https://docs.exaloop.io/codon/general/differences \|url-status=live \|archive-url=https://web.archive.org/web/20230525002540/https://docs.exaloop.io/codon/general/differences \|archive-date=2023-05-25 \|access-date=2023-08-28}}</ref> For example, Codon uses 64-bit machine integers for speed, not arbitrarily as with Python; Codon developers claim that speedups over CPython are usually on the order of ten to a hundred times. Codon compiles to machine code (via [[LLVM]]) and supports native multithreading.<ref>{{Cite web \|last=Lawson \|first=Loraine \|date=2023-03-14 \|title=MIT-Created Compiler Speeds up Python Code \|url=https://thenewstack.io/mit-created-compiler-speeds-up-python-code/ \|url-status=live \|archive-url=https://web.archive.org/web/20230406054200/https://thenewstack.io/mit-created-compiler-speeds-up-python-code/ \|archive-date=2023-04-06 \|access-date=2023-08-28 \|website=The New Stack \|language=en-US}}</ref> <!-- It's compile has a restrictive BSL licence, but it doesn't affect generated code: --> Codon can also compile to Python extension modules that can be imported and used from Python.		* Codon is an implentation with an [[ahead-of-time compilation\|ahead-of-time (AOT) compiler]], which compiles a statically-typed Python-like language whose "syntax and semantics are nearly identical to Python's, there are some notable differences"<ref>{{Cite web \|title=Codon: Differences with Python \|url=https://docs.exaloop.io/codon/general/differences \|url-status=live \|archive-url=https://web.archive.org/web/20230525002540/https://docs.exaloop.io/codon/general/differences \|archive-date=2023-05-25 \|access-date=2023-08-28}}</ref> For example, Codon uses 64-bit machine integers for speed, not arbitrarily as with Python; Codon developers claim that speedups over CPython are usually on the order of ten to a hundred times. Codon compiles to machine code (via [[LLVM]]) and supports native multithreading.<ref>{{Cite web \|last=Lawson \|first=Loraine \|date=2023-03-14 \|title=MIT-Created Compiler Speeds up Python Code \|url=https://thenewstack.io/mit-created-compiler-speeds-up-python-code/ \|url-status=live \|archive-url=https://web.archive.org/web/20230406054200/https://thenewstack.io/mit-created-compiler-speeds-up-python-code/ \|archive-date=2023-04-06 \|access-date=2023-08-28 \|website=The New Stack \|language=en-US}}</ref> <!-- It's compile has a restrictive BSL licence, but it doesn't affect generated code: --> Codon can also compile to Python extension modules that can be imported and used from Python.
	* [[MicroPython]] and [[CircuitPython]] are Python 3 variants that are optimized for [[microcontroller]]s, including the [[Lego Mindstorms EV3]].<ref>{{Cite web\|url=https://education.lego.com/en-us/support/mindstorms-ev3/python-for-ev3\|title=Python-for-EV3\|website=LEGO Education\|language=en\|access-date=17 April 2019\|archive-date=7 June 2020\|archive-url=https://web.archive.org/web/20200607234814/https://education.lego.com/en-us/support/mindstorms-ev3/python-for-ev3\|url-status=live}}</ref>		* [[MicroPython]] and [[CircuitPython]] are Python 3 variants that are optimized for [[microcontroller]]s, including the [[Lego Mindstorms EV3]].<ref>{{Cite web\|url=https://education.lego.com/en-us/support/mindstorms-ev3/python-for-ev3\|title=Python-for-EV3\|website=LEGO Education\|language=en\|access-date=17 April 2019\|archive-date=7 June 2020\|archive-url=https://web.archive.org/web/20200607234814/https://education.lego.com/en-us/support/mindstorms-ev3/python-for-ev3\|url-status=live}}</ref>

77.61.17.225: /* History */

2025-06-20T11:58:30Z

History

← Previous revision		Revision as of 11:58, 20 June 2025
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	{{Main\|History of Python}}		{{Main\|History of Python}}
	[[File:Guido van Rossum in PyConUS24.jpg\|thumb\|311x311px\|The designer of Python, [[Guido van Rossum]], at PyCon US 2024]]		[[File:Guido van Rossum in PyConUS24.jpg\|thumb\|311x311px\|The designer of Python, [[Guido van Rossum]], at PyCon US 2024]]
	Python was conceived in the late 1980s<ref name="venners-interview-pt-1"/> by Guido van Rossum at [[Centrum Wiskunde & Informatica]] (CWI) in the [[Netherlands]]; it was conceived as a successor to the [[ABC (programming language)\|ABC]] programming language, which was inspired by [[SETL]],<ref name="AutoNT-12"/> capable of [[exception handling]] and interfacing with the [[Amoeba (operating system)\|Amoeba]] operating system.<ref name="faq-created"/> Python implementation began in December, 1989.<ref name="timeline-of-python"/> Van Rossum assumed sole responsibility for the project, as the lead developer, until 12 July 2018, when he announced his "permanent vacation" from responsibilities as Python's "[[benevolent dictator for life]]" (BDFL); this title was bestowed on him by the Python community to reflect his long-term commitment as the project's chief decision-maker.<ref name="lj-bdfl-resignation"/> (He has since come out of retirement and is self-titled "BDFL-emeritus"<!-- on his Twitter-->.) In January, 2019, active Python core developers elected a five-member Steering Council to lead the project.<ref>{{cite web \|title=PEP 8100 \|url=https://www.python.org/dev/peps/pep-8100/ \|publisher=Python Software Foundation \|access-date=4 May 2019 \|archive-date=4 June 2020 \|archive-url=https://web.archive.org/web/20200604235027/https://www.python.org/dev/peps/pep-8100/ \|url-status=live}}</ref><ref>{{Cite web\|title=PEP 13 – Python Language Governance\|url=https://www.python.org/dev/peps/pep-0013/\|access-date=2021-08-25\|website=Python.org\|language=en\|archive-date=27 May 2021\|archive-url=https://web.archive.org/web/20210527000035/https://www.python.org/dev/peps/pep-0013/\|url-status=live}}</ref>		Python was conceived in the late 1980s<ref name="venners-interview-pt-1"/> by [[Guido van Rossum]] at [[Centrum Wiskunde & Informatica]] (CWI) in the [[Netherlands]]; it was conceived as a successor to the [[ABC (programming language)\|ABC]] programming language, which was inspired by [[SETL]],<ref name="AutoNT-12"/> capable of [[exception handling]] and interfacing with the [[Amoeba (operating system)\|Amoeba]] operating system.<ref name="faq-created"/> Python implementation began in December, 1989.<ref name="timeline-of-python"/> Van Rossum assumed sole responsibility for the project, as the lead developer, until 12 July 2018, when he announced his "permanent vacation" from responsibilities as Python's "[[benevolent dictator for life]]" (BDFL); this title was bestowed on him by the Python community to reflect his long-term commitment as the project's chief decision-maker.<ref name="lj-bdfl-resignation"/> (He has since come out of retirement and is self-titled "BDFL-emeritus"<!-- on his Twitter-->.) In January, 2019, active Python core developers elected a five-member Steering Council to lead the project.<ref>{{cite web \|title=PEP 8100 \|url=https://www.python.org/dev/peps/pep-8100/ \|publisher=Python Software Foundation \|access-date=4 May 2019 \|archive-date=4 June 2020 \|archive-url=https://web.archive.org/web/20200604235027/https://www.python.org/dev/peps/pep-8100/ \|url-status=live}}</ref><ref>{{Cite web\|title=PEP 13 – Python Language Governance\|url=https://www.python.org/dev/peps/pep-0013/\|access-date=2021-08-25\|website=Python.org\|language=en\|archive-date=27 May 2021\|archive-url=https://web.archive.org/web/20210527000035/https://www.python.org/dev/peps/pep-0013/\|url-status=live}}</ref>

	The name ''Python'' is said to derive from the British comedy series [[Monty Python's Flying Circus]].<ref name=":0">{{Cite book \|last1=Briggs \|first1=Jason R. \|title=Python for kids: a playful introduction to programming \|last2=Lipovača \|first2=Miran \|date=2013 \|publisher=No Starch Press \|isbn=978-1-59327-407-8 \|location=San Francisco, Calif}}</ref>		The name ''Python'' is said to derive from the British comedy series [[Monty Python's Flying Circus]].<ref name=":0">{{Cite book \|last1=Briggs \|first1=Jason R. \|title=Python for kids: a playful introduction to programming \|last2=Lipovača \|first2=Miran \|date=2013 \|publisher=No Starch Press \|isbn=978-1-59327-407-8 \|location=San Francisco, Calif}}</ref>
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	* The <code>[[if-then-else\|if]]</code> statement, which conditionally executes a block of code, along with <code>else</code> and <code>elif</code> (a contraction of <code>else if</code>)		* The <code>[[if-then-else\|if]]</code> statement, which conditionally executes a block of code, along with <code>else</code> and <code>elif</code> (a contraction of <code>else if</code>)
	* The <code>[[Foreach#Python\|for]]</code> statement, which iterates over an ''iterable'' object, capturing each element to a local variable for use by the attached block		* The <code>[[Foreach#Python\|for]]</code> statement, which iterates over an ''iterable'' object, capturing each element to a local variable for use by the attached block
	* The <code>[[While loop#Python\|while]]</code> statement, which executes a block of code as long as ~~its~~ condition is true		* The <code>[[While loop#Python\|while]]</code> statement, which executes a block of code as long as boolean condition is true
	* The <code>[[Exception handling syntax#Python\|try]]</code> statement, which allows exceptions raised in its attached code block to be caught and handled by <code>except</code> clauses (or new syntax <code>except*</code> in Python 3.11 for exception groups<ref>{{Cite web \|title=8. Errors and Exceptions – Python 3.12.0a0 documentation \|url=https://docs.python.org/3.11/tutorial/errors.html \|access-date=2022-05-09 \|website=docs.python.org \|archive-date=9 May 2022 \|archive-url=https://web.archive.org/web/20220509145745/https://docs.python.org/3.11/tutorial/errors.html \|url-status=live}}</ref>); the <code>try</code> statement also ensures that clean-up code in a <code>finally</code> block is always run regardless of how the block exits		* The <code>[[Exception handling syntax#Python\|try]]</code> statement, which allows exceptions raised in its attached code block to be caught and handled by <code>except</code> clauses (or new syntax <code>except*</code> in Python 3.11 for exception groups<ref>{{Cite web \|title=8. Errors and Exceptions – Python 3.12.0a0 documentation \|url=https://docs.python.org/3.11/tutorial/errors.html \|access-date=2022-05-09 \|website=docs.python.org \|archive-date=9 May 2022 \|archive-url=https://web.archive.org/web/20220509145745/https://docs.python.org/3.11/tutorial/errors.html \|url-status=live}}</ref>); the <code>try</code> statement also ensures that clean-up code in a <code>finally</code> block is always run regardless of how the block exits
	* The <code>raise</code> statement, used to raise a specified exception or re-raise a caught exception		* The <code>raise</code> statement, used to raise a specified exception or re-raise a caught exception

imported>Nugget1252 at 16:17, 30 May 2025

2025-05-30T16:17:43Z

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← Previous revision		Revision as of 11:58, 20 June 2025
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	{{Main\|History of Python}}		{{Main\|History of Python}}
	[[File:Guido van Rossum in PyConUS24.jpg\|thumb\|311x311px\|The designer of Python, [[Guido van Rossum]], at PyCon US 2024]]		[[File:Guido van Rossum in PyConUS24.jpg\|thumb\|311x311px\|The designer of Python, [[Guido van Rossum]], at PyCon US 2024]]
	Python was conceived in the late 1980s<ref name="venners-interview-pt-1"/> by Guido van Rossum at [[Centrum Wiskunde & Informatica]] (CWI) in the [[Netherlands]]; it was conceived as a successor to the [[ABC (programming language)\|ABC]] programming language, which was inspired by [[SETL]],<ref name="AutoNT-12"/> capable of [[exception handling]] and interfacing with the [[Amoeba (operating system)\|Amoeba]] operating system.<ref name="faq-created"/> Python implementation began in December, 1989.<ref name="timeline-of-python"/> Van Rossum assumed sole responsibility for the project, as the lead developer, until 12 July 2018, when he announced his "permanent vacation" from responsibilities as Python's "[[benevolent dictator for life]]" (BDFL); this title was bestowed on him by the Python community to reflect his long-term commitment as the project's chief decision-maker.<ref name="lj-bdfl-resignation"/> (He has since come out of retirement and is self-titled "BDFL-emeritus"<!-- on his Twitter-->.) In January, 2019, active Python core developers elected a five-member Steering Council to lead the project.<ref>{{cite web \|title=PEP 8100 \|url=https://www.python.org/dev/peps/pep-8100/ \|publisher=Python Software Foundation \|access-date=4 May 2019 \|archive-date=4 June 2020 \|archive-url=https://web.archive.org/web/20200604235027/https://www.python.org/dev/peps/pep-8100/ \|url-status=live}}</ref><ref>{{Cite web\|title=PEP 13 – Python Language Governance\|url=https://www.python.org/dev/peps/pep-0013/\|access-date=2021-08-25\|website=Python.org\|language=en\|archive-date=27 May 2021\|archive-url=https://web.archive.org/web/20210527000035/https://www.python.org/dev/peps/pep-0013/\|url-status=live}}</ref>		Python was conceived in the late 1980s<ref name="venners-interview-pt-1"/> by [[Guido van Rossum]] at [[Centrum Wiskunde & Informatica]] (CWI) in the [[Netherlands]]; it was conceived as a successor to the [[ABC (programming language)\|ABC]] programming language, which was inspired by [[SETL]],<ref name="AutoNT-12"/> capable of [[exception handling]] and interfacing with the [[Amoeba (operating system)\|Amoeba]] operating system.<ref name="faq-created"/> Python implementation began in December, 1989.<ref name="timeline-of-python"/> Van Rossum assumed sole responsibility for the project, as the lead developer, until 12 July 2018, when he announced his "permanent vacation" from responsibilities as Python's "[[benevolent dictator for life]]" (BDFL); this title was bestowed on him by the Python community to reflect his long-term commitment as the project's chief decision-maker.<ref name="lj-bdfl-resignation"/> (He has since come out of retirement and is self-titled "BDFL-emeritus"<!-- on his Twitter-->.) In January, 2019, active Python core developers elected a five-member Steering Council to lead the project.<ref>{{cite web \|title=PEP 8100 \|url=https://www.python.org/dev/peps/pep-8100/ \|publisher=Python Software Foundation \|access-date=4 May 2019 \|archive-date=4 June 2020 \|archive-url=https://web.archive.org/web/20200604235027/https://www.python.org/dev/peps/pep-8100/ \|url-status=live}}</ref><ref>{{Cite web\|title=PEP 13 – Python Language Governance\|url=https://www.python.org/dev/peps/pep-0013/\|access-date=2021-08-25\|website=Python.org\|language=en\|archive-date=27 May 2021\|archive-url=https://web.archive.org/web/20210527000035/https://www.python.org/dev/peps/pep-0013/\|url-status=live}}</ref>

	The name ''Python'' is said to derive from the British comedy series [[Monty Python's Flying Circus]].<ref name=":0">{{Cite book \|last1=Briggs \|first1=Jason R. \|title=Python for kids: a playful introduction to programming \|last2=Lipovača \|first2=Miran \|date=2013 \|publisher=No Starch Press \|isbn=978-1-59327-407-8 \|location=San Francisco, Calif}}</ref>		The name ''Python'' is said to derive from the British comedy series [[Monty Python's Flying Circus]].<ref name=":0">{{Cite book \|last1=Briggs \|first1=Jason R. \|title=Python for kids: a playful introduction to programming \|last2=Lipovača \|first2=Miran \|date=2013 \|publisher=No Starch Press \|isbn=978-1-59327-407-8 \|location=San Francisco, Calif}}</ref>
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	* The <code>[[if-then-else\|if]]</code> statement, which conditionally executes a block of code, along with <code>else</code> and <code>elif</code> (a contraction of <code>else if</code>)		* The <code>[[if-then-else\|if]]</code> statement, which conditionally executes a block of code, along with <code>else</code> and <code>elif</code> (a contraction of <code>else if</code>)
	* The <code>[[Foreach#Python\|for]]</code> statement, which iterates over an ''iterable'' object, capturing each element to a local variable for use by the attached block		* The <code>[[Foreach#Python\|for]]</code> statement, which iterates over an ''iterable'' object, capturing each element to a local variable for use by the attached block
	* The <code>[[While loop#Python\|while]]</code> statement, which executes a block of code as long as ~~its~~ condition is true		* The <code>[[While loop#Python\|while]]</code> statement, which executes a block of code as long as boolean condition is true
	* The <code>[[Exception handling syntax#Python\|try]]</code> statement, which allows exceptions raised in its attached code block to be caught and handled by <code>except</code> clauses (or new syntax <code>except*</code> in Python 3.11 for exception groups<ref>{{Cite web \|title=8. Errors and Exceptions – Python 3.12.0a0 documentation \|url=https://docs.python.org/3.11/tutorial/errors.html \|access-date=2022-05-09 \|website=docs.python.org \|archive-date=9 May 2022 \|archive-url=https://web.archive.org/web/20220509145745/https://docs.python.org/3.11/tutorial/errors.html \|url-status=live}}</ref>); the <code>try</code> statement also ensures that clean-up code in a <code>finally</code> block is always run regardless of how the block exits		* The <code>[[Exception handling syntax#Python\|try]]</code> statement, which allows exceptions raised in its attached code block to be caught and handled by <code>except</code> clauses (or new syntax <code>except*</code> in Python 3.11 for exception groups<ref>{{Cite web \|title=8. Errors and Exceptions – Python 3.12.0a0 documentation \|url=https://docs.python.org/3.11/tutorial/errors.html \|access-date=2022-05-09 \|website=docs.python.org \|archive-date=9 May 2022 \|archive-url=https://web.archive.org/web/20220509145745/https://docs.python.org/3.11/tutorial/errors.html \|url-status=live}}</ref>); the <code>try</code> statement also ensures that clean-up code in a <code>finally</code> block is always run regardless of how the block exits
	* The <code>raise</code> statement, used to raise a specified exception or re-raise a caught exception		* The <code>raise</code> statement, used to raise a specified exception or re-raise a caught exception