Python Programming Language

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Questions and Answers

What was the initial end-of-life date for Python 2.7?

  • 2015 (correct)
  • 2020
  • 2010
  • 2008

Which Python implementation continues to support Python 2?

  • PyPy (correct)
  • IronPython
  • CPython
  • Jython

What is Python's design philosophy?

  • Code readability with the use of significant indentation (correct)
  • Code security with the use of no indentation
  • Code complexity with the use of minimal indentation
  • Code efficiency with minimal indentation

What was added to Python 3.10?

<p>The | union type operator and match and case keywords (C)</p>
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Which Python versions are currently supported as of 2023?

<p>3.8 and later (B)</p>
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What is Guido van Rossum's current title in the Python community?

<p>BDFL-emeritus (C)</p>
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What was improved in Python 3.11?

<p>Error reporting and program execution speed (B)</p>
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What was released in 2008 and was a major revision not completely backward-compatible with earlier versions?

<p>Python 3.0 (C)</p>
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What is Python often described as due to its comprehensive standard library?

<p>A batteries-included language (B)</p>
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What was the inspiration for the ABC programming language?

<p>SETL and the Amoeba operating system (C)</p>
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Study Notes

Overview of Python

  • Python is a high-level, general-purpose programming language.
  • It emphasizes code readability with significant indentation.
  • Python is dynamically typed and garbage-collected.

Key Features

  • Supports multiple programming paradigms, including structured, object-oriented, and functional programming.
  • Described as a "batteries included" language due to its comprehensive standard library.

History

  • Guido van Rossum invented Python in the late 1980s as a successor to the ABC programming language.
  • First released in 1991 as Python 0.9.0.
  • Python 2.0 was released in 2000, and Python 3.0 was released in 2008, which was a major revision not completely backward-compatible with earlier versions.

Development and Leadership

  • Guido van Rossum was the lead developer until 2018, and was titled "benevolent dictator for life" (BDFL).
  • In 2019, a five-member Steering Council was elected to lead the project.

Releases

  • Python 2.7.18 was the last release of Python 2 in 2020.
  • Python 3.x releases include the 2to3 utility, which automates the translation of Python 2 code to Python 3.
  • As of 2023, only Python 3.8 and later are supported, with security issues fixed in earlier versions.
  • PyPy, an unofficial Python implementation, continues to support Python 2 with backported security updates.

Security Updates

  • Security updates were expedited in 2021 and 2022 due to security issues affecting all Python versions.
  • In 2022, Python 3.10.4, 3.9.12, and 3.8.13 were released due to many security issues.
  • As of October 2023, Python 3.12 is the stable release, and 3.12 and 3.11 are the only versions with active support.

Notable Changes

  • Python 3.10 added the | union type operator and the match and case keywords.
  • Python 3.11 expanded exception handling functionality and increased program execution speed.
  • Python 3.12 added the new keyword type.

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