1.1 Python introduction смотреть онлайн

Python is an interpreted high-level programming language for general-purpose programming, created by Guido van Rossum. • Python and CPython are managed by the non-profit Python Software Foundation (PSF). • Python features a dynamic type system and automatic memory management. • Python interpreters are available for many operating systems.
https://www.python.org/

History of Python
• 1990 - Python was created in the early 1990s by Guido van Rossum as a successor of a language called ABC. • 1995 - Guido released several versions of the software. • 2000 - formed the BeOpen PythonLabs team and later moved to Digital Creations (now Zope Corporation). • 2001 - The Python Software Foundation (PSF), see https://www.python.org/psf/) was formed sponsored by Zope Corporation.
Python Licenses
• All Python releases are Open Source ( https://opensource.org/). Most of the Python releases are GPL-compatible – https://www.python.org/downloads/ • The Licenses page details GPL-compatibility and Terms and Conditions. – https://docs.python.org/3/license.html
Applications for Python
• Web and Internet Development • Software Development • Business Applications, BI • Machine Learning, Data science, AI • Education, Scientific and Research area • Desktop GUIs • Automation and many areas...
Hidden message, The Zen of Python (a summary of Python philosophy), is displayed when trying to import this.

Python releases
• Python 2.0 was released on 16 October 2000 • Python 3.0 was released on 3 December 2008 – Not completely backward-compatible – Include the 2to3 utility, which automates the translation of Python 2 code to Python 3 • Python 2.7's end-of-life date was set at 2020 • Current release is 3.7.1
Python features • Python was designed to be highly extensible, simpler, less cluttered grammar syntax. • Python programmer can move time-critical functions to extension modules written in languages such as C, or use PyPy. • Python is an easily readable language, it does not use curly brackets and semicolons. • Users and admirers of Python, are often referred to as Pythonists, Pythonistas, and Pythoneers.
Python Libraries
Python has large standard library which provides tools suited to many tasks. The Python Package Index (PyPI) the official repository for third-party Python software, contains over 130,000 packages with a wide range of functionality, including: • Graphical user interfaces, Web frameworks, Multimedia, Databases, Networking, Test frameworks, Automation, System administration, Scientific computing, Text/Image processing.

pip (package manager) • pip is a package management system used to install and manage software packages written in Python. Many packages can be found in the default source for packages and their dependencies — Python Package Index (PyPI). • Python 2.7.9 and later and Python 3.4 and later include pip by default. • pip is a recursive acronym for "Pip Installs Packages”.

Implementations • Reference implementation – CPython • Other implementations – PyPy, Stackless Python, Micro Python, Circuit Python • Cross-compilers to other languages – Jython, IronPython, RPython, Pyjs, Cynthon, Google's Grumpy
import __hello__ prints Hello world!
An antigravity module: Importing it opens a web browser to xkcd comic 353 that portrays a humorous fictional use for such a module, intended to demonstrate the ease with which Python modules enable additional functionality.