Python news 3-25 :Python On Side

Python安装包version 3.1.5

This is Python version 3.1.5 ============================ Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Python Software Foundation. All rights reserved. Python 3.x is a new version of the language, which is incompatible with the 2.x line of releases. The language is mostly the same, but many details, especially how built-in objects like dictionaries and strings work, have changed considerably, and a lot of deprecated features have finally been removed. Build Instructions ------------------ On Unix, Linux, BSD, OSX, and Cygwin: ./configure make make test sudo make install This will install Python as python3. You can pass many options to the configure script; run "./configure --help" to find out more. On OSX and Cygwin, the executable is called python.exe; elsewhere it's just python. On Mac OS X, if you have configured Python with --enable-framework, you should use "make frameworkinstall" to do the installation. Note that this installs the Python executable in a place that is not normally on your PATH, you may want to set up a symlink in /usr/local/bin. On Windows, see PCbuild/readme.txt. If you wish, you can create a subdirectory and invoke configure from there. For example: mkdir debug cd debug ../configure --with-pydebug make make test (This will fail if you *also* built at the top-level directory. You should do a "make clean" at the toplevel first.) What's New ---------- We try to have a comprehensive overview of the changes in the "What's New in Python 3.1" document, found at http://docs.python.org/3.1/whatsnew/3.1.html For a more detailed change log, read Misc/NEWS (though this file, too, is incomplete, and also doesn't list anything merged in from the 2.7 release under development). If you want to install multiple versions of Python see the section below entitled "Installing multiple versions". Documentation ------------- Documentation for Python 3.1 is online, updated twice a day: http://docs.python.org/3.1/ All documentation is also available online at the Python web site (http://docs.python.org/, see below). It is available online for occasional reference, or can be downloaded in many formats for faster access. The documentation is downloadable in HTML, PostScript, PDF, LaTeX (through 2.5), and reStructuredText (2.6+) formats; the LaTeX and reStructuredText versions are primarily for documentation authors, translators, and people with special formatting requirements. Converting From Python 2.x to 3.x --------------------------------- Python starting with 2.6 will contain features to help locating code that needs to be changed, such as optional warnings when deprecated features are used, and backported versions of certain key Python 3.x features. A source-to-source translation tool, "2to3", can take care of the mundane task of converting large amounts of source code. It is not a complete solution but is complemented by the deprecation warnings in 2.6. See http://docs.python.org/py3k/library/2to3.html for more information. Testing ------- To test the interpreter, type "make test" in the top-level directory. This runs the test set twice (once with no compiled files, once with the compiled files left by the previous test run). The test set produces some output. You can generally ignore the messages about skipped tests due to optional features which can't be imported. If a message is printed about a failed test or a traceback or core dump is produced, something is wrong. On some Linux systems (those that are not yet using glibc 6), test_strftime fails due to a non-standard implementation of strftime() in the C library. Please ignore this, or upgrade to glibc version 6. By default, tests are prevented from overusing resources like disk space and memory. To enable these tests, run "make testall". IMPORTANT: If the tests fail and you decide to mail a bug report, *don't* include the output of "make test". It is useless. Run the failing test manually, as follows: ./python Lib/test/regrtest.py -v test_whatever (substituting the top of the source tree for '.' if you built in a different directory). This runs the test in verbose mode. Installing multiple versions ---------------------------- On Unix and Mac systems if you intend to install multiple versions of Python using the same installation prefix (--prefix argument to the configure script) you must take care that your primary python executable is not overwritten by the installation of a different version. All files and directories installed using "make altinstall" contain the major and minor version and can thus live side-by-side. "make install" also creates ${prefix}/bin/python3 which refers to ${prefix}/bin/pythonX.Y. If you intend to install multiple versions using the same prefix you must decide which version (if any) is your "primary" version. Install that version using "make install". Install all other versions using "make altinstall". For example, if you want to install Python 2.5, 2.6 and 3.0 with 2.6 being the primary version, you would execute "make install" in your 2.6 build directory and "make altinstall" in the others. Issue Tracker and Mailing List ------------------------------ We're soliciting bug reports about all aspects of the language. Fixes are also welcome, preferable in unified diff format. Please use the issue tracker: http://bugs.python.org/ If you're not sure whether you're dealing with a bug or a feature, use the mailing list: python-dev@python.org To subscribe to the list, use the mailman form: http://mail.python.org/mailman/listinfo/python-dev/ Proposals for enhancement ------------------------- If you have a proposal to change Python, you may want to send an email to the comp.lang.python or python-ideas mailing lists for inital feedback. A Python Enhancement Proposal (PEP) may be submitted if your idea gains ground. All current PEPs, as well as guidelines for submitting a new PEP, are listed at http://www.python.org/dev/peps/. Release Schedule ---------------- See PEP 375 for release details: http://www.python.org/dev/peps/pep-0375/ Copyright and License Information --------------------------------- Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Python Software Foundation. All rights reserved. Copyright (c) 2000 BeOpen.com. All rights reserved. Copyright (c) 1995-2001 Corporation for National Research Initiatives. All rights reserved. Copyright (c) 1991-1995 Stichting Mathematisch Centrum. All rights reserved. See the file "LICENSE" for information on the history of this software, terms & conditions for usage, and a DISCLAIMER OF ALL WARRANTIES. This Python distribution contains *no* GNU General Public License (GPL) code, so it may be used in proprietary projects. There are interfaces to some GNU code but these are entirely optional. All trademarks referenced herein are property of their respective holders.

使用 Python 和 JavaScript 的基于 Web 的 AI 助手应用程序.pdf

使用 Python 和 JavaScript 的基于 Web 的 AI 助手应用程序.pdf

后端开发框架：教程&案例&相关项目.md

markdown文本，最好使用vscode typora等工具打开查看

Google.Hacks.探索和利用全球信息资源的技巧和工具——英文版

最佳的google使用方法，挖掘实用的搜索技巧，展示在进行自动查询时只要知道很少的编程技巧能实现哪些功能

无刷直流电机模糊神经网络PID-模糊PID-传统PID三种控制对比Simulink仿真

内容概要：本文系统研究了无刷直流电机（BLDCM）在Simulink环境下的三种控制策略：传统PID控制、模糊PID控制以及模糊神经网络PID控制。研究基于三相桥式星型全控电路结构，构建了转速电流双闭环控制系统，并通过Matlab/Simulink搭建仿真模型，全面对比分析了三种算法在动态响应速度、稳态精度、抗干扰能力及系统鲁棒性等方面的性能差异。文章深入阐述了各控制方法的设计原理与实现机制，重点突出了模糊逻辑与神经网络在自适应调节PID参数方面的优势，验证了智能控制算法在提升电机控制品质上的显著效果。同时，文档提供了详实的仿真资源、参考文献和技术说明，有助于读者复现实验并深化对先进控制策略的理解与应用。 适合人群：具备自动控制理论基础和MATLAB/Simulink仿真能力的电气工程、自动化及相关专业的研究生、科研人员及工程技术人员，特别适用于从事电机驱动系统设计、智能控制算法开发等领域的专业人士。 使用场景及目标：①用于教学与科研中对比分析传统PID、模糊PID与模糊神经网络PID在无刷直流电机调速系统中的控制性能差异；②为高性能电机控制器的设计与优化提供仿真验证平台，支持参数整定与控制策略选型；③辅助完成毕业设计、科研项目或工业应用中的控制算法评估与改进。 阅读建议：建议读者结合所提供的Simulink模型与参考文献，逐步复现仿真过程，重点关注不同控制器的参数整定方法、响应曲线特征及其在负载扰动下的表现。可进一步拓展研究方向，如引入无位置传感器控制、滑模观测器或模型预测控制等先进控制技术，以深化对现代电机智能控制体系的理解与创新能力。