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== Introduction ==
'''Python''' is an interpreted, high-level programming language known for its easy readability and simplicity. It was created by Guido van Rossum and first released in 1991. Python emphasizes code readability and allows programmers to express concepts in fewer lines of code compared to other languages. It supports multiple programming paradigms, including procedural, object-oriented, and functional programming. With its comprehensive standard library and an active community, Python has grown to become one of the most popular programming languages in the world, widely used in various domains, including web development, data analysis, artificial intelligence, scientific computing, and automation.


'''Python''' is a high-level, interpreted, general-purpose programming language known for its readability, simplicity, and versatility. Created by [[Guido van Rossum]] and first released in 1991, Python emphasizes code readability through its use of significant indentation and a clear, expressive syntax. It supports multiple programming paradigms, including [[procedural programming]], [[object-oriented programming]], and [[functional programming]]. Python's extensive standard library and dynamic typing make it a popular choice for a wide range of applications, from web development to scientific computing.
== History ==
Python's history can be traced back to the late 1980s when Guido van Rossum began working on it as a successor to the ABC programming language. The language was designed to address the shortcomings of ABC while retaining its features. Python 1.0 was released in February 1991, introducing fundamental concepts such as exceptions, functions, and the core data types of lists and dictionaries. In the years that followed, Python underwent several enhancements.


Python is an open-source language with a large, active community that contributes to its development and maintenance. Its design philosophy, summarized in the document ''[[The Zen of Python]]'', prioritizes simplicity and explicitness. Python's interpreter and standard library are available for all major platforms, making it highly portable.
=== Python 2.x ===
Python 2.0 was released in October 2000 and included many new features, such as list comprehensions and garbage collection. The Python Software Foundation (PSF) was created in 2001 to promote, protect, and advance the Python programming language. Python 2 became widely adopted and was supported until January 1, 2020, at which point it reached its end of life, leading the community to fully transition to Python 3.


== History or Background ==
=== Python 3.x ===
Python 3.0 was launched in December 2008, offering significant improvements over its predecessor, primarily emphasizing better Unicode support and a more consistent standard library. Python 3 was not backward compatible with Python 2, which caused some controversy in the community. Notable features introduced in Python 3 include the print function as a standard function, rather than a statement, and the introduction of type hints. Following the transition period, Python 3's adoption has steadily increased, with its usage in various sectors proliferating.


=== Early Development ===
== Features ==
Python was conceived in the late 1980s by Guido van Rossum at the [[Centrum Wiskunde & Informatica]] (CWI) in the Netherlands. Van Rossum aimed to create a successor to the [[ABC (programming language)|ABC]] language that would address its shortcomings while retaining its ease of use. The first public release, Python 0.9.0, was made in February 1991. Key features from this early version included exception handling, functions, and core data types like lists, dictionaries, and strings.
Python encompasses a range of features that make it appealing for both beginners and experienced developers. Β 


=== Python 2 and Python 3 ===
=== Readability ===
Python 2.0 was released in 2000, introducing features like list comprehensions, a garbage collection system, and Unicode support. Python 3.0, released in 2008, was a major revision that was not backward-compatible with Python 2. This decision was made to eliminate inconsistencies and redundant features. The transition from Python 2 to Python 3 was gradual, with Python 2 reaching end-of-life on January 1, 2020.
One of Python's hallmark features is its emphasis on readability. The language's syntax mimics natural language and is designed in a way that reduces the cognitive load on the programmer. This readability fosters better understanding and collaboration among developers, making it easier to maintain and share code.


=== Community and Governance ===
=== Dynamic Typing ===
Python's development is managed by the [[Python Software Foundation]] (PSF), a non-profit organization that oversees the language's direction and promotes its adoption. The language's evolution is guided by [[Python Enhancement Proposals]] (PEPs), which document new features, standards, and best practices. PEP 8, for example, defines Python's style guide.
Python employs dynamic typing, which allows developers to write code without the need to explicitly declare variable types. This flexibility enables rapid prototyping and reduces the amount of boilerplate code required. However, dynamic typing can also lead to runtime errors that could have been caught at compile time in statically typed languages.


== Technical Details or Architecture ==
=== Extensive Libraries ===
Python boasts an extensive standard library that encompasses modules and packages for a wide variety of tasksβ€”from file I/O to web development and data manipulation. The library simplifies many programming tasks, reducing the need to write code from scratch. Moreover, the Python Package Index (PyPI) features thousands of additional third-party libraries, which extend Python's capabilities.


=== Syntax and Semantics ===
=== Interpreted Language ===
Python's syntax is designed to be intuitive and readable. Key characteristics include:
As an interpreted language, Python executes code line-by-line rather than compiling it into machine code. This characteristic makes the development process faster and easier for debugging. The interactive shell allows users to test snippets of code in real-time, which is particularly helpful for learning and experimentation.
* '''Indentation''': Python uses whitespace indentation to delimit code blocks, unlike many languages that use braces or keywords.
* '''Dynamic Typing''': Variables are not explicitly declared; their type is inferred at runtime.
* '''First-Class Functions''': Functions are treated as objects, allowing them to be passed as arguments or returned from other functions.
* '''Garbage Collection''': Python uses automatic memory management via reference counting and a cycle-detecting garbage collector.


=== Standard Library ===
=== Multi-paradigm Support ===
Python's standard library includes modules for:
Python supports multiple programming paradigms, enabling developers to choose the most suitable approach for their projects. Object-oriented programming facilitates model representation, while functional programming features, such as lambda functions and map-reduce operations, allow for more concise and expressive code.
* File I/O (e.g., [[os module|os]], [[sys module|sys]])
* Data serialization (e.g., [[pickle module|pickle]], [[json module|json]])
* Networking (e.g., [[socket module|socket]], [[http module|http]])
* Concurrent execution (e.g., [[threading module|threading]], [[asyncio module|asyncio]])


=== Implementation ===
== Usage and Applications ==
The reference implementation of Python, [[CPython]], is written in C and compiles Python code to bytecode, which is executed by the Python virtual machine. Other implementations include:
Python's diverse range of applications is one of the key factors contributing to its popularity.
* [[Jython]]: Runs on the [[Java Virtual Machine]] (JVM)
* [[IronPython]]: Integrates with the [[.NET Framework]]
* [[PyPy]]: Features a [[just-in-time compilation|JIT]] compiler for improved performance
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== Applications or Use Cases ==


=== Web Development ===
=== Web Development ===
Python is widely used in web development, with frameworks such as:
Python is widely used for web development, with frameworks such as Django, Flask, and Pyramid that facilitate rapid development of robust web applications. Django, in particular, is notable for its "batteries included" philosophy, providing developers with a complete, out-of-the-box solution that includes authentication, database ORM, and URL routing.
* [[Django (web framework)|Django]]: A high-level framework for rapid development
* [[Flask (web framework)|Flask]]: A lightweight microframework
* [[FastAPI]]: A modern framework for building APIs
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Popular websites built with Python include [[Instagram]], [[Pinterest]], and [[Spotify]].


=== Data Science and Machine Learning ===
=== Data Science and Machine Learning ===
Python is a dominant language in data science due to libraries like:
In recent years, Python has emerged as a leading language for data science and machine learning. Libraries such as NumPy and Pandas provide powerful data manipulation capabilities, while SciPy is utilized for scientific computing. Additionally, machine learning frameworks like TensorFlow, Keras, and Scikit-learn enable developers to create sophisticated predictive models and neural networks.
* [[NumPy]]: For numerical computing
* [[Pandas (software)|Pandas]]: For data manipulation
* [[Matplotlib]]: For data visualization
* [[Scikit-learn]]: For machine learning
* [[TensorFlow]] and [[PyTorch]]: For deep learning


=== Automation and Scripting ===
=== Automation and Scripting ===
Python is commonly used for:
Python's simplicity and effectiveness in scripting have made it a popular choice for automation tasks. System administrators and DevOps professionals utilize Python to write scripts for automating repetitive tasks, managing servers, and even orchestrating complex workflows through tools like Ansible.
* System administration tasks
* Web scraping (e.g., with [[Beautiful Soup]] or [[Scrapy]])
* Test automation (e.g., [[Selenium (software)|Selenium]])


=== Scientific Computing ===
=== Scientific Computing ===
Python is used in fields like physics, biology, and astronomy, with tools such as:
Python is extensively used in academic and professional research environments for scientific computing. Libraries like Matplotlib and Seaborn provide data visualization capabilities, while Jupyter Notebooks offer an interactive computing environment that combines code execution, visualizations, and documentation. This has made Python a favorite among researchers and data analysts.
* [[SciPy]]: For scientific computing
* [[Astropy]]: For astronomy


=== Game Development ===
=== Game Development ===
Python is used in game development with libraries like:
Python is also used in game development, with libraries like Pygame that provide functionality to create 2D games. While not as prevalent as languages like C++ or C# in high-performance game development, Python remains popular for prototyping and for smaller-scale projects.
* [[Pygame]]: For 2D games
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* [[Panda3D]]: For 3D games
== Community and Ecosystem ==
The Python community plays a crucial role in the language's development and popularity.
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=== Python Software Foundation ===
The Python Software Foundation (PSF) is a non-profit organization that manages the licensing for Python and supports the development of the language. It is instrumental in fostering the growth of Python through funding grants, organizing conferences, and maintaining the official documentation.
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=== Conferences and User Groups ===
Numerous conferences and meetups are held globally to bring together Python enthusiasts, developers, and researchers. Events like PyCon, EuroPython, and SciPy create opportunities for learning, sharing knowledge, and networking within the community. User groups often organize local meetups that provide a platform for collaboration and skill sharing.
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=== Contribution and Development ===
The development of Python is highly decentralized, with contributions coming from a broad spectrum of individuals and organizations. Developers can contribute to the language through the Python Enhancement Proposal (PEP) process, where new features and changes undergo a formal review process. This openness has led to a dynamic ecosystem in which the community actively participates in decision-making and development.


== Relevance in Computing or Industry ==
== Criticism and Limitations ==
Despite its many advantages, Python is not without its criticisms.


Python's popularity has grown steadily due to its ease of use and versatility. It consistently ranks among the top programming languages in indices like the [[TIOBE Index]] and the [[PYPL PopularitY of Programming Language Index]]. Major tech companies, including [[Google]], [[Facebook]], and [[Netflix]], use Python for various applications.
=== Performance Concerns ===
Python is often criticized for its performance limitations, particularly in contexts requiring high speed and efficiency. Being an interpreted language, it can be slower than compiled languages like C or C++. For computationally intensive applications, Python may need integration with lower-level languages or the use of Just-In-Time (JIT) compilation techniques, such as those found in PyPy.


=== Education ===
=== Global Interpreter Lock ===
Python is often recommended as a first programming language due to its simple syntax and readability. It is widely taught in schools and universities.
Python's Global Interpreter Lock (GIL) is another limitation that has sparked criticism, particularly in multi-threaded applications. The GIL prevents multiple native threads from executing Python bytecode concurrently, potentially hindering the performance of CPU-bound applications. Developers often rely on multiprocessing or other mechanisms to bypass GIL constraints when high concurrency is necessary.


=== Industry Adoption ===
=== Indentation Sensitivity ===
Python is used in:
Python's use of indentation to define code blocks has been a topic of debate. While it promotes readability, it can lead to confusion for new programmers, especially if they are accustomed to other programming languages with explicit block delimiters. Issues with indentation can lead to subtle bugs that are not immediately apparent.
* Finance: For algorithmic trading and risk management
* Healthcare: For data analysis and bioinformatics
* Entertainment: For visual effects and animation (e.g., [[Blender (software)|Blender]] uses Python for scripting)


== See also ==
== See Also ==
* [[Comparison of programming languages]]
* [[Programming language]]
* [[List of Python software]]
* [[Guido van Rossum]]
* [[Python Software Foundation]]
* [[Software development]]
* [[History of Python]]
* [[Data science]]
* [[Web development]]


== References ==
== References ==
* [https://www.python.org/ Official Python Website]
* [https://www.python.org/ Python Official Site]
* [https://docs.python.org/3/ Python Documentation]
* [https://docs.python.org/ Python Documentation]
* [https://peps.python.org/ Python Enhancement Proposals (PEPs)]
* [https://pypi.org/ Python Package Index]
* [https://wiki.python.org/moin/ Python Wiki]


[[Category:Programming languages]]
[[Category:Programming languages]]
[[Category:High-level programming languages]]
[[Category:High-level programming languages]]
[[Category:Interpreted programming languages]]
[[Category:Open-source software]]

Latest revision as of 17:44, 6 July 2025

Python is an interpreted, high-level programming language known for its easy readability and simplicity. It was created by Guido van Rossum and first released in 1991. Python emphasizes code readability and allows programmers to express concepts in fewer lines of code compared to other languages. It supports multiple programming paradigms, including procedural, object-oriented, and functional programming. With its comprehensive standard library and an active community, Python has grown to become one of the most popular programming languages in the world, widely used in various domains, including web development, data analysis, artificial intelligence, scientific computing, and automation.

History

Python's history can be traced back to the late 1980s when Guido van Rossum began working on it as a successor to the ABC programming language. The language was designed to address the shortcomings of ABC while retaining its features. Python 1.0 was released in February 1991, introducing fundamental concepts such as exceptions, functions, and the core data types of lists and dictionaries. In the years that followed, Python underwent several enhancements.

Python 2.x

Python 2.0 was released in October 2000 and included many new features, such as list comprehensions and garbage collection. The Python Software Foundation (PSF) was created in 2001 to promote, protect, and advance the Python programming language. Python 2 became widely adopted and was supported until January 1, 2020, at which point it reached its end of life, leading the community to fully transition to Python 3.

Python 3.x

Python 3.0 was launched in December 2008, offering significant improvements over its predecessor, primarily emphasizing better Unicode support and a more consistent standard library. Python 3 was not backward compatible with Python 2, which caused some controversy in the community. Notable features introduced in Python 3 include the print function as a standard function, rather than a statement, and the introduction of type hints. Following the transition period, Python 3's adoption has steadily increased, with its usage in various sectors proliferating.

Features

Python encompasses a range of features that make it appealing for both beginners and experienced developers.

Readability

One of Python's hallmark features is its emphasis on readability. The language's syntax mimics natural language and is designed in a way that reduces the cognitive load on the programmer. This readability fosters better understanding and collaboration among developers, making it easier to maintain and share code.

Dynamic Typing

Python employs dynamic typing, which allows developers to write code without the need to explicitly declare variable types. This flexibility enables rapid prototyping and reduces the amount of boilerplate code required. However, dynamic typing can also lead to runtime errors that could have been caught at compile time in statically typed languages.

Extensive Libraries

Python boasts an extensive standard library that encompasses modules and packages for a wide variety of tasksβ€”from file I/O to web development and data manipulation. The library simplifies many programming tasks, reducing the need to write code from scratch. Moreover, the Python Package Index (PyPI) features thousands of additional third-party libraries, which extend Python's capabilities.

Interpreted Language

As an interpreted language, Python executes code line-by-line rather than compiling it into machine code. This characteristic makes the development process faster and easier for debugging. The interactive shell allows users to test snippets of code in real-time, which is particularly helpful for learning and experimentation.

Multi-paradigm Support

Python supports multiple programming paradigms, enabling developers to choose the most suitable approach for their projects. Object-oriented programming facilitates model representation, while functional programming features, such as lambda functions and map-reduce operations, allow for more concise and expressive code.

Usage and Applications

Python's diverse range of applications is one of the key factors contributing to its popularity.

Web Development

Python is widely used for web development, with frameworks such as Django, Flask, and Pyramid that facilitate rapid development of robust web applications. Django, in particular, is notable for its "batteries included" philosophy, providing developers with a complete, out-of-the-box solution that includes authentication, database ORM, and URL routing.

Data Science and Machine Learning

In recent years, Python has emerged as a leading language for data science and machine learning. Libraries such as NumPy and Pandas provide powerful data manipulation capabilities, while SciPy is utilized for scientific computing. Additionally, machine learning frameworks like TensorFlow, Keras, and Scikit-learn enable developers to create sophisticated predictive models and neural networks.

Automation and Scripting

Python's simplicity and effectiveness in scripting have made it a popular choice for automation tasks. System administrators and DevOps professionals utilize Python to write scripts for automating repetitive tasks, managing servers, and even orchestrating complex workflows through tools like Ansible.

Scientific Computing

Python is extensively used in academic and professional research environments for scientific computing. Libraries like Matplotlib and Seaborn provide data visualization capabilities, while Jupyter Notebooks offer an interactive computing environment that combines code execution, visualizations, and documentation. This has made Python a favorite among researchers and data analysts.

Game Development

Python is also used in game development, with libraries like Pygame that provide functionality to create 2D games. While not as prevalent as languages like C++ or C# in high-performance game development, Python remains popular for prototyping and for smaller-scale projects.

Community and Ecosystem

The Python community plays a crucial role in the language's development and popularity.

Python Software Foundation

The Python Software Foundation (PSF) is a non-profit organization that manages the licensing for Python and supports the development of the language. It is instrumental in fostering the growth of Python through funding grants, organizing conferences, and maintaining the official documentation.

Conferences and User Groups

Numerous conferences and meetups are held globally to bring together Python enthusiasts, developers, and researchers. Events like PyCon, EuroPython, and SciPy create opportunities for learning, sharing knowledge, and networking within the community. User groups often organize local meetups that provide a platform for collaboration and skill sharing.

Contribution and Development

The development of Python is highly decentralized, with contributions coming from a broad spectrum of individuals and organizations. Developers can contribute to the language through the Python Enhancement Proposal (PEP) process, where new features and changes undergo a formal review process. This openness has led to a dynamic ecosystem in which the community actively participates in decision-making and development.

Criticism and Limitations

Despite its many advantages, Python is not without its criticisms.

Performance Concerns

Python is often criticized for its performance limitations, particularly in contexts requiring high speed and efficiency. Being an interpreted language, it can be slower than compiled languages like C or C++. For computationally intensive applications, Python may need integration with lower-level languages or the use of Just-In-Time (JIT) compilation techniques, such as those found in PyPy.

Global Interpreter Lock

Python's Global Interpreter Lock (GIL) is another limitation that has sparked criticism, particularly in multi-threaded applications. The GIL prevents multiple native threads from executing Python bytecode concurrently, potentially hindering the performance of CPU-bound applications. Developers often rely on multiprocessing or other mechanisms to bypass GIL constraints when high concurrency is necessary.

Indentation Sensitivity

Python's use of indentation to define code blocks has been a topic of debate. While it promotes readability, it can lead to confusion for new programmers, especially if they are accustomed to other programming languages with explicit block delimiters. Issues with indentation can lead to subtle bugs that are not immediately apparent.

See Also

References