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Pyjoyment

An asynchronous, event driver web framework for the Python programming language.

Pyjoyment provides own reactor which handles I/O and timer events in its own main event loop but it supports other loops, ie. libev, asyncio.

Pyjoyment uses intensively own event emmiter which should be familiar for Node.JS programmers.

It provides tool set for parsing and creating HTTP messages and HTML documents. It also supports WSGI interface.

Pyjoyment is compatible with Python 2.7+, Python 3.3+ and PyPy 2.4+. It doesn’t require any external libraries or compilers.

See http://www.pyjoyment.net/

Pyjoyment is based on Mojolicious: a next generation web framework for the Perl programming language.

Status

Early developement stage. Implemented already:

WSGI adapter
HTTP standalone async-io server
WebSockets client and server
HTTP user agent with TLS/SSL support
JSON pointers implementation based on RFC6901
Embedded files loader
HTML/XML DOM parser with CSS selectors
URL parser with container classes for URL, path and querystring
Non-blocking TCP client and server
Simple logging object
Synchronizer and sequentializer of multiple events
Main event loop which handle IO and timer events
Event emitter with subscriptions
Low level event reactor based on select(2) and poll(2)
Convenient functions and classed for unicode and byte strings and lists
Lazy properties for objects
Test units with API based on Perl’s Test::More and TAP protocol

Examples

Web scraping

import Pyjo.UserAgent
from Pyjo.String.Unicode import u

tx = Pyjo.UserAgent.new().get('https://html.spec.whatwg.org')
for n in tx.res.dom('#named-character-references-table tbody > tr').each():
    u(n.at('td > code').text + ' ' + n.children('td')[1].text).trim().say()

URL manipulation

import Pyjo.URL
from Pyjo.String.Unicode import u

# 'ssh+git://git@github.com/dex4er/Pyjoyment.git'
url = Pyjo.URL.new('https://github.com/dex4er/Pyjoyment')
print(url.set(scheme='ssh+git', userinfo='git', path=u(url.path) + '.git'))

# 'http://metacpan.org/search?q=Mojo::URL&size=20'
print(Pyjo.URL.new('http://metacpan.org/search')
      .set(query={'q': 'Mojo::URL', 'size': 20}))

Non-blocking TCP client/server

import Pyjo.IOLoop


# Listen on port 3000
@Pyjo.IOLoop.server(port=3000)
def server(loop, stream, cid):

    @stream.on
    def read(stream, chunk):
        # Process input chunk
        print("Server: {0}".format(chunk.decode('utf-8')))

        # Write response
        stream.write(b"HTTP/1.1 200 OK\x0d\x0a\x0d\x0a")

        # Disconnect client
        stream.close_gracefully()


# Connect to port 3000
@Pyjo.IOLoop.client(port=3000)
def client(loop, err, stream):

    @stream.on
    def read(stream, chunk):
        # Process input
        print("Client: {0}".format(chunk.decode('utf-8')))

    # Write request
    stream.write(b"GET / HTTP/1.1\x0d\x0a\x0d\x0a")


# Add a timer
@Pyjo.IOLoop.timer(3)
def timeouter(loop):
    print("Timeout")
    # Shutdown server
    loop.remove(server)


# Start event loop
Pyjo.IOLoop.start()

Standalone HTTP server serving embedded template file

# -*- coding: utf-8 -*-

import Pyjo.Server.Daemon
import Pyjo.URL

from Pyjo.Loader import embedded_file
from Pyjo.Util import b, u

import sys


opts = dict([['address', '0.0.0.0'], ['port', 3000]] + list(map(lambda a: a.split('='), sys.argv[1:])))
listen = str(Pyjo.URL.new(scheme='http', host=opts['address'], port=opts['port']))

daemon = Pyjo.Server.Daemon.new(listen=[listen])
daemon.unsubscribe('request')


# Embedded template file
DATA = u(r'''
@@ index.html.tpl
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Pyjoyment</title>
</head>
<body>
<h1>♥ Pyjoyment ♥</h1>
<h2>This page is served by Pyjoyment framework.</h2>
<p>{method} request for {path}</p>
</body>
</html>
''')


@daemon.on
def request(daemon, tx):
    # Request
    method = tx.req.method
    path = tx.req.url.path

    # Template
    template = embedded_file(sys.modules[__name__], 'index.html.tpl')

    # Response
    tx.res.code = 200
    tx.res.headers.content_type = 'text/html; charset=utf-8'
    tx.res.body = b(template.format(**locals()))

    # Resume transaction
    tx.resume()


daemon.run()

Metadata

Release files for Pyjoyment 0.0.1

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Source distribution (sdist)

Source distribution for Pyjoyment 0.0.1
File	Size	Uploaded	Provenance
Pyjoyment-0.0.1.tar.gz	127.7 kB	Mar 27, 2016	Without provenance	Details

Built distribution (wheel)

Table of built distributions (wheels) for Pyjoyment 0.0.1
File	Interpreter	ABI	Platform	Reset
Pyjoyment-0.0.1-py2.py3-none-any.whl 163.6 kB Mar 27, 2016 Without provenance	Python 3, Python 2	none	any	Details

Total release size: 291.4 kB

Release files / Pyjoyment-0.0.1.tar.gz

Download URL	Pyjoyment-0.0.1.tar.gz
Size	127.7 kB
Tags	Source
SHA-256 checksum How to use checksums	`95439ec44979d839f46a80a54b6fe15899ad1c435166405a1aac0b12bdcee7f0`
BLAKE2b-256 checksum How to use checksums	`2dd61ab9fca946665ed9482c52a80def86f72a330586e20433fc5114848f7515`
Upload date	Mar 27, 2016
Uploaded using Trusted Publishing? What is trusted publishing?	No

Release files / Pyjoyment-0.0.1-py2.py3-none-any.whl

Download URL	Pyjoyment-0.0.1-py2.py3-none-any.whl
Size	163.6 kB
Tags	Python 2 Python 3
SHA-256 checksum How to use checksums	`2cb11f7d77661348a00d8834456e68a7bcf4c5470c155a697e88096fc04915d5`
BLAKE2b-256 checksum How to use checksums	`d28770ea3ef912637ae2370bfa58a4a6692d9e3c91258f862aea808546bce16b`
Upload date	Mar 27, 2016
Uploaded using Trusted Publishing? What is trusted publishing?	No

Security for Pyjoyment 0.0.1

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0.0.1 This release

Mar 27, 2016 2 release files No provenance

Pyjoyment 0.0.1