Zope.component represents the core of the Zope Component Architecture. Together with the zope.interface package, it provides facilities for defining, registering and looking up components.

urlgrabber is a library that unifies access to files available on the web, FTP or locally. It supports HTTP, FTP and file:// protocols, it supports features like HTTP keep-alive, reget, throttling and more.

This package provides access to any RESTful or RESTful-like API.

Gunicorn ‘Green Unicorn’ is a Python WSGI HTTP Server for UNIX. It’s a pre-fork worker model ported from Ruby’s Unicorn project. The Gunicorn server is broadly compatible with various web frameworks, simply implemented, light on server resources, and fairly speedy.

This is a HTTPS client implementation for httplib and urllib2 based on PyOpenSSL. PyOpenSSL provides a more fully-featured SSL implementation over the default provided with Python and, importantly, enables full verification of the SSL peer.

extruct is a Python library for extracting embedded metadata from HTML markup. Currently, extruct supports:

• W3C's HTML Microdata

• embedded JSON-LD

• Microformat via mf2py

• Facebook's Open Graph

• (experimental) RDFa via rdflib

• Dublin Core Metadata (DC-HTML-2003)

The Microsoft Authentication Library for Python enables applications to integrate with the Microsoft identity platform. It allows you to sign in users or apps with Microsoft identities (Azure AD, Microsoft Accounts and Azure AD B2C accounts) and obtain tokens to call Microsoft APIs such as Microsoft Graph or your own APIs registered with the Microsoft identity platform. It is built using industry standard OAuth2 and OpenID Connect protocols.

pycares is a Python module which provides an interface to c-ares, a C library that performs DNS requests and name resolutions asynchronously.

Zope.configuration implements ZCML, the Zope Configuration Markup Language.

launchpadlib is a Python library that allows scripting Launchpad via its the web service API.

python-hstspreload contains Chromium HSTS Preload list as a Python package.

Python port of the YUI CSS Compressor.

This package provides a Python implementation of the Engine.IO realtime client and server.

aiostream provides a collection of stream operators that can be combined to create asynchronous pipelines of operations. It can be seen as an asynchronous version of itertools, although some aspects are slightly different. All the provided operators return a unified interface called a stream. A stream is an enhanced asynchronous iterable.

This package provides the Microsoft Azure Blob Storage Client Library for Python.

cssselect2 is a straightforward implementation of CSS3 Selectors for markup documents (HTML, XML, etc.) that can be read by ElementTree-like parsers (including cElementTree, lxml, html5lib, etc.).

Unlike the Python package cssselect, it does not translate selectors to XPath and therefore does not have all the correctness corner cases that are hard or impossible to fix in cssselect.

This package provides a query string parser for Python and Django projects that correctly creates nested dictionaries from sent form/querystring data.

Flask-RESTX is an extension for Flask that adds support for quickly building REST APIs. Flask-RESTX encourages best practices with minimal setup. If you are familiar with Flask, Flask-RESTX should be easy to pick up. It provides a coherent collection of decorators and tools to describe your API and expose its documentation properly using Swagger.

This Python library provides a Microformats2 parser implementing the full Microformats2 (mf2) specification, including backward compatibility with Microformats1 (mf1).

python-portend can be used to monitor TCP ports for bound or unbound states. For example, waiting for a port to be occupied or freed within a set timeout. python-portend can also be used directly from the command line.

Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. By using non-blocking network I/O, Tornado can scale to tens of thousands of open connections, making it ideal for long polling, WebSockets, and other applications that require a long-lived connection to each user.

This package provides a URI Normalization function with following features:

• take care of IDN domains

• always provide the URI scheme in lowercase characters

• always provide the host, if any, in lowercase characters

• only perform percent-encoding where it is essential

• always use uppercase A-through-F characters when percent-encoding

• prevent dot-segments appearing in non-relative URI paths

• for schemes that define a default authority, use an empty authority if the default is desired

• for schemes that define an empty path to be equivalent to a path of /, use /

• for schemes that define a port, use an empty port if the default is desired

• all portions of the URI must be utf-8 encoded NFC from Unicode strings

This package implements RetryClient for aiohttp to retry connection to provided endpoint with timeouts logic or use:

• ExponentialRetry with exponential backoff

• RandomRetry for random backoff

• ListRetry with backoff you predefine by list

• FibonacciRetry with backoff that looks like fibonacci sequence

• JitterRetry exponential retry with a bit of randomness

The zope.deprecation module provides a function for marking modules, classes, functions, methods and properties as deprecated, displaying warnings when usaged in application code.