Voici ce que je veux faire en python:Comment modifier un flux atom/rss en python?
feedparser ainsi modifié ne fait un bon travail lors de l'analyse, mais il ne semble pas permettre de composer un document XML à partir d'un objet FeedParserDict.
Existe-t-il une alternative plus simple à l'écriture de ma propre fonction de composition?
J'ai écrit mon propre sérialiseur Atom 1.0, en utilisant le moteur de Django templating. Je suis allé le mile supplémentaire de le rendre aussi complet que possible, afin qu'il puisse être réutilisé par d'autres personnes:
import feedparser
from django.template import Template
d = feedparser.parse("http://example.com/feed.xml") # creating a FeedParserDict
# ... do stuff with d
t = Template(the_stuff_below) # compiling the template
output_atom_document = t.render(d)
Soyez conscient du fait que le travail d'assainissement de feedparser se fait par feedparser.parse() seulement, donc tout ce que vous nourrissez un FeedParserDict doit être préalablement nettoyé si nécessaire.
Et si vous voulez utiliser ceci pour modifier un flux, n'oubliez pas que vous devez changer les valeurs d'id (une par flux, une par entrée), car elles doivent être uniques.
<?xml version="1.0" encoding="{{ encoding }}"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<title type="{{ feed.title_detail.type }}" xml:lang="{{ feed.title_detail.language }}" xml:base="{{ feed.title_detail.base }}">{{ feed.title|escape }}</title>
{% for link in feed.links %}
<link rel="{{ link.rel }}" type="{{ link.type }}" href="{{ link.href }}" title="{{ link.title }}"/>
{% endfor %}
<subtitle type="{{ feed.subtitle_detail.type }}" xml:lang="{{ feed.subtitle_detail.language }}" xml:base="{{ feed.subtitle_detail.base }}">{{ feed.subtitle|escape }}</subtitle>
<rights type="{{ feed.rights_detail.type }}" xml:lang="{{ feed.rights_detail.language }}" xml:base="{{ feed.rights_detail.base }}">{{ feed.rights|escape }}</rights>
<generator uri="{{ feed.generator_detail.href }}" version="{{ feed.generator_detail.version }}">{{ feed.generator }}</generator>
<info type="{{ feed.info_detail.type }}" xml:lang="{{ feed.info_detail.language }}" xml:base="{{ feed.info_detail.base }}">{{ feed.info|escape }}</info>
<updated>{{ feed.updated }}</updated>
<id>{{ feed.id }}</id>
<author>
<name>{{ feed.author }}</name>
<uri>{{ feed.author_detail.href }}</uri>
<email>{{ feed.author_detail.email }}</email>
</author>
{% for contributor in feed.contributors %}
<contributor>
<name>{{ contributor }}</name>
<uri>{{ contributor_detail.href }}</uri>
<email>{{ contributor_detail.email }}</email>
</contributor>
{% endfor %}
<image>
<title>{{ feed.image.title }}</title>
<url>{{ feed.image.href }}</url>
<link>{{ feed.image.link }}</link>
<width>{{ feed.image.width }}</width>
<height>{{ feed.image.height }}</height>
<description>{{ feed.image.description }}</description>
</image>
<icon>{{ feed.icon }}</icon>
<!-- not part of Atom 1.0: feed.textinput -->
<!-- not part of Atom 1.0: feed.cloud -->
<publisher>
<name>{{ feed.publisher }}</name>
<uri>{{ feed.publisher_detail.href }}</uri>
<email>{{ feed.publisher_detail.email }}</email>
</publisher>
{% for tag in feed.tags %}
<tag>
<term>{{ tag.term }}</term>
<scheme>{{ tag.scheme }}</scheme>
<label>{{ tag.label }}</label>
</tag>
{% endfor %}
<language>{{ feed.language }}</language>
<!-- not part of Atom 1.0: feed.license -->
<!-- not part of Atom 1.0: feed.errorreportsto -->
{% for entry in entries %}
<entry>
<title type="{{ entry.title_detail.type }}" xml:lang="{{ entry.title_detail.language }}" xml:base="{{ entry.title_detail.base }}">{{ entry.title|escape }}</title>
{% for link in entry.links %}
<link rel="{{ link.rel }}" type="{{ link.type }}" href="{{ link.href }}" title="{{ link.title }}"/>
{% endfor %}
<summary type="{{ entry.summary_detail.type }}" xml:lang="{{ entry.summary_detail.language }}" xml:base="{{ entry.summary_detail.base }}">{{ entry.summary|escape }}</summary>
{% for content in entry.content %}
<content type="{{ content.type }}" xml:lang="{{ content.language }}" xml:base="{{ content.base }}">{{ content.value|escape }}</content>
{% endfor %}
<published>{{ entry.published }}</published>
<updated>{{ entry.updated }}</updated>
<created>{{ entry.created }}</created>
<!-- not part of Atom 1.0: entry.expired -->
<id>{{ entry.id }}</id>
<author>
<name>{{ entry.author }}</name>
<uri>{{ entry.author_detail.href }}</uri>
<email>{{ entry.author_detail.email }}</email>
</author>
{% for contributor in entry.contributors %}
<contributor>
<name>{{ contributor }}</name>
<uri>{{ contributor_detail.href }}</uri>
<email>{{ contributor_detail.email }}</email>
</contributor>
{% endfor %}
{% for enclosure in entry.enclosures %}
<link rel="enclosure" href="{{ enclosure.href }}" length="{{ enclosure.length }}" type="{{ enclosure.type }}"/>
{% endfor %}
<publisher>
<name>{{ entry.publisher }}</name>
<uri>{{ entry.publisher_detail.href }}</uri>
<email>{{ entry.publisher_detail.email }}</email>
</publisher>
{% for tag in entry.tags %}
<tag>
<term>{{ tag.term }}</term>
<scheme>{{ tag.scheme }}</scheme>
<label>{{ tag.label }}</label>
</tag>
{% endfor %}
<source>
<author>
<name>{{ entry.source.author }}</name>
<uri>{{ entry.source.author_detail.href }}</uri>
<email>{{ entry.source.author_detail.email }}</email>
</author>
{% for contributor in entry.source.contributors %}
<contributor>
<name>{{ contributor }}</name>
<uri>{{ contributor_detail.href }}</uri>
<email>{{ contributor_detail.email }}</email>
</contributor>
{% endfor %}
<icon>{{ entry.source.icon }}</icon>
<id>{{ entry.source.id }}</id>
{% for link in entry.source.links %}
<link rel="{{ link.rel }}" type="{{ link.type }}" href="{{ link.href }}" title="{{ link.title }}"/>
{% endfor %}
<logo>{{ entry.source.logo }}</logo>
<rights type="{{ entry.source.rights_detail.type }}" xml:lang="{{ entry.source.rights_detail.language }}" xml:base="{{ entry.source.rights_detail.base }}">{{ entry.source.rights|escape }}</rights>
<subtitle type="{{ entry.source.subtitle_detail.type }}" xml:lang="{{ entry.source.subtitle_detail.language }}" xml:base="{{ entry.source.subtitle_detail.base }}">{{ entry.source.subtitle|escape }}</subtitle>
<title type="{{ entry.source.title_detail.type }}" xml:lang="{{ entry.source.title_detail.language }}" xml:base="{{ entry.source.title_detail.base }}">{{ entry.source.title|escape }}</title>
<updated>{{ entry.source.updated }}</updated>
</source>
<!-- not part of Atom 1.0: entry.comments -->
<!-- not part of Atom 1.0: entry.license -->
</entry>
{% endfor %}
<!-- meaningless: version (this is Atom 1.0) -->
<!-- meaningless: namespaces (namespace set to "http://www.w3.org/2005/Atom" in the <feed> tag) -->
<!-- somewhere else: encoding (in the XML declaration) -->
<!-- meaningless: status (HTTP status) -->
<!-- meaningless: href (present if server redirect when fetching the original feed) -->
<!-- meaningless: etag (part of HTTP headers) -->
<!-- meaningless: modified (part of HTTP headers) -->
<!-- meaningless: headers (HTTP headers) -->
<!-- meaningless: bozo (set to 1 if not well-formed XML) -->
<!-- meaningless: bozo_exception -->
</feed>
Vous pouvez utiliser lxml ou écrire le vôtre avec une bibliothèque de modèles Python.