Skip to main content
This is a pre-production deployment of Warehouse. Changes made here affect the production instance of PyPI (pypi.python.org).
Help us improve Python packaging - Donate today!

Declarative hypertext client

Project Description

Declarative hypertext client

Installation

pip install peppertext

Overview

from peppertext import Hypertext, SimpleURLField, resolve, register, selector

@register
class GoogleBlogPage(Hypertext):
    url = SimpleURLField(
        "https://googleblog.blogspot.kr/{year}/{month}/{title}.html"
    )

    title = selector.find(".title[itemprop=name]").text()
    body = selector.find(".post-body").text()

It resolves given headers, url and query string to hypertext object.

>>> p = resolve("https://googleblog.blogspot.kr/2015/11/google-gobble-thanksgiving-trends-on.html")
>>> p
<GoogleBlogPage at 0x108a4d1f0 >

>>> p.fetch()
>>> p['title']
'Google gobble: Thanksgiving trends on Search'
>>> p['body']
'In just a few hours, people across the U.S. will be settling...'

You can create GoogleBlogPage object with profile variables which are declared as fields in GoogleBlogPage class.

>>> p = GoogleBlogPage(
...     year="2015",
...     month="11",
...     title="google-gobble-thanksgiving-trends-on"
... )

>>> p.fetch()
>>> p['title']
'Google gobble: Thanksgiving trends on Search'

Selectors

class GoogleBlogPage(Hypertext):
    # ...
    title = selector.find(".title[itemprop=name]").text()
    # ...

Selectors process a document which is returned from server as response. In the GoogleBlogPage example above, title selector parses document and find an element specified with ".title[itemprop=name]" css selector. You can access the value title with subscribing the GoogleBlogPage object with selector name.

document = pq("""<div>
    <a href="http://example.com">Link1</a>
    <a href="http://example.com/dahokan">Link2</a>
    <a href="http://example.com/manoha">Link3</a>
</div>""")

find_selector = selector.find('a')
selected_els = find_selector.select(document)
self.assertEqual( [pq(el).attr["href"] for el in selected_els],
    [
        "http://example.com",
        "http://example.com/dahokan",
        "http://example.com/manoha"
    ]
)

find

Select html elements which match to given css selector string.

attribute

Get an element’s attribute value with given attribute name.

text

Select the html element’s inner text value.

at

Get an item on index

sub

sub_selector = selector.sub(pattern="\d+", repl="")

Do regex substitution.

cast

int_cast_selector = selector.cast(int)

Pass the data to the function given as a parameter.

Compatibility

Peppertext supports Python 2.7 and 3.

Features in developing

  • Interface for parse error handling
  • Polymorphic access to page selectors
  • Interface to resolve and traverse links in a page
Release History

Release History

This version
History Node

0.1.3

History Node

0.1.2

History Node

0.1.1

Download Files

Download Files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
peppertext-0.1.3.tar.gz (7.8 kB) Copy SHA256 Checksum SHA256 Source Feb 14, 2016

Supported By

WebFaction WebFaction Technical Writing Elastic Elastic Search Pingdom Pingdom Monitoring Dyn Dyn DNS Sentry Sentry Error Logging CloudAMQP CloudAMQP RabbitMQ Heroku Heroku PaaS Kabu Creative Kabu Creative UX & Design Fastly Fastly CDN DigiCert DigiCert EV Certificate Rackspace Rackspace Cloud Servers DreamHost DreamHost Log Hosting