podgen.Podcast¶

class podgen.Podcast(**kwargs)[source]¶

Class representing one podcast feed.

The following attributes are mandatory:

name
website
description
explicit

All attributes can be assigned None in addition to the types specified below. Types etc. are checked during assignment, to help you discover errors earlier. Duck typing is employed wherever a class in podgen is expected.

There is a shortcut you can use when creating new Podcast objects, that lets you populate the attributes using the constructor. Use keyword arguments with the attribute name as keyword and the desired value as value. As an example:

>>> import podgen
>>> # The following...
>>> p = Podcast()
>>> p.name = "The Test Podcast"
>>> p.website = "http://example.com"
>>> # ...is the same as this:
>>> p = Podcast(
...     name="The Test Podcast",
...     website="http://example.com",
... )

Of course, you can do this for as many (or few) attributes as you like, and you can still set the attributes afterwards, like always.

Raises:	TypeError if you use a keyword which isn’t recognized as an attribute. ValueError if you use a value which isn’t compatible with the attribute (just like when you assign it manually).

add_episode(new_episode=None)[source]¶

Shorthand method which adds a new episode to the feed, creating an object if it’s not provided, and returns it. This is the easiest way to add episodes to a podcast.

Parameters:	new_episode – `Episode` object to add. A new instance of `episode_class` is used if `new_episode` is omitted.
Returns:	Episode object created or passed to this function.

Example:

...
>>> episode1 = p.add_episode()
>>> episode1.title = 'First episode'
>>> # You may also provide an episode object yourself:
>>> another_episode = p.add_episode(podgen.Episode())
>>> another_episode.title = 'My second episode'

Internally, this method creates a new instance of episode_class, which means you can change what type of objects are created by changing episode_class.

authors¶

List of Person that are responsible for this podcast’s editorial content.

Any value you assign to authors will be automatically converted to a list, but only if it’s iterable (like tuple, set and so on). It is an error to assign a single Person object to this attribute:

>>> # This results in an error
>>> p.authors = Person("John Doe", "johndoe@example.org")
TypeError: Only iterable types can be assigned to authors, ...
>>> # This is the correct way:
>>> p.authors = [Person("John Doe", "johndoe@example.org")]

The authors don’t need to have both name and email set. The names are shown under the podcast’s title on iTunes.

The initial value is an empty list, so you can use the list methods right away.

Example:

>>> # This attribute is just a list - you can for example append:
>>> p.authors.append(Person("John Doe", "johndoe@example.org"))
>>> # Or they can be given as new list (overriding earlier authors)
>>> p.authors = [Person("John Doe", "johndoe@example.org"),
...               Person("Mary Sue", "marysue@example.org")]

Type:	`list` of `podgen.Person`
RSS:	managingEditor or dc:creator, and itunes:author

category¶

The iTunes category, which appears in the category column and in iTunes Store listings.

Type:	`podgen.Category`
RSS:	itunes:category

cloud¶

The cloud data of the feed, as a 5-tuple. It specifies a web service that supports the (somewhat dated) rssCloud interface, which can be implemented in HTTP-POST, XML-RPC or SOAP 1.1.

The tuple should look like this: (domain, port, path, registerProcedure, protocol).

RegisterProcedure:
Domain:	The domain where the webservice can be found.
Port:	The port the webservice listens to.
Path:	The path of the webservice.
	The procedure to call.
Protocol:	Can be either “HTTP-POST”, “xml-rpc” or “soap”.

Example:

p.cloud = ("podcast.example.org", 80, "/rpc", "cloud.notify",
        "xml-rpc")

Type:	`tuple` with (`str`, `int`, `str`, `str`, `str`)
RSS:	cloud

Tip

PubSubHubbub is a competitor to rssCloud, and is the preferred choice if you’re looking to set up a new service of this kind.

complete¶

Whether this podcast is completed or not.

If you set this to True, you are indicating that no more episodes will be added to the podcast. If you let this be None or False, you are indicating that new episodes may be posted.

Type:	`bool`
RSS:	itunes:complete

Warning

Setting this to True is the same as promising you’ll never ever release a new episode. Do NOT set this to True as long as there’s any chance AT ALL that a new episode will be released someday.

copyright = None¶

The copyright notice for content in this podcast.

Note that even if you leave out the copyright notice, your content is still protected by copyright (unless anything else is indicated), since you do not need a copyright statement for something to be protected by copyright. If you intend to put the podcast in public domain or license it under a Creative Commons license, you should say so in the copyright notice.

Type:	`str`
RSS:	copyright

description = None¶

The description of the podcast, which is a phrase or sentence describing it to potential new subscribers. It is mandatory for RSS feeds, and is shown under the podcast’s name on the iTunes store page.

Type:	`str`
RSS:	description

episode_class¶

Class used to represent episodes.

This is used by add_episode() when creating new episode objects, and you, too, may use it when creating episodes.

By default, this property points to Episode.

When assigning a new class to episode_class, you must make sure that the new value (1) is a class and not an instance, and (2) that it is a subclass of Episode (or is Episode itself).

Example of use:

>>> # Create new podcast
>>> from podgen import Podcast, Episode
>>> p = Podcast()

>>> # Normal way of creating new episodes
>>> episode1 = Episode()
>>> p.episodes.append(episode1)

>>> # Or use add_episode (and thus episode_class indirectly)
>>> episode2 = p.add_episode()

>>> # Or use episode_class directly
>>> episode3 = p.episode_class()
>>> p.episodes.append(episode3)

>>> # Say you want to use AlternateEpisode class instead of Episode
>>> from mymodule import AlternateEpisode
>>> p.episode_class = AlternateEpisode

>>> episode4 = p.add_episode()
>>> episode4.title("This is an instance of AlternateEpisode!")

Type:	`class` which extends `podgen.Episode`

episodes¶

List of Episode objects that are part of this podcast.

See add_episode() for an easy way to create new episodes and assign them to this podcast in one call.

Type:	`list` of `podgen.Episode`
RSS:	item elements

explicit = None¶

Whether this podcast may be inappropriate for children or not.

This is one of the mandatory attributes, and can seen as the default for episodes. Individual episodes can be marked as explicit or clean independently from the podcast.

If you set this to True, an “explicit” parental advisory graphic will appear next to your podcast artwork on the iTunes Store and in the Name column in iTunes. If it is set to False, the parental advisory type is considered Clean, meaning that no explicit language or adult content is included anywhere in the episodes, and a “clean” graphic will appear.

Type:	`bool`
RSS:	itunes:explicit

feed_url¶

The URL which this feed is available at.

Identifying a feed’s URL within the feed makes it more portable, self-contained, and easier to cache. You should therefore set this attribute if you’re able to.

Type:	`str`
RSS:	atom:link with `rel="self"`

generator = None¶

A string identifying the software that generated this RSS feed. Defaults to a string identifying PodGen.

Type:	`str`
RSS:	generator

See also

The set_generator() method: A convenient way to set the generator value and include version and url.

image¶

The URL of the artwork for this podcast. iTunes prefers square images that are at least 1400x1400 pixels. Podcasts with an image smaller than this are not eligible to be featured on the iTunes Store.

iTunes supports images in JPEG and PNG formats with an RGB color space (CMYK is not supported). The URL must end in ”.jpg” or ”.png”.

Type:	`str`
RSS:	itunes:image

Note

If you change your podcast’s image, you must also change the file’s name; iTunes doesn’t check the image to see if it has changed.

Additionally, the server hosting your cover art image must allow HTTP HEAD requests (most servers support this).

language = None¶

The language of the podcast.

This allows aggregators to group all Italian language podcasts, for example, on a single page.

It must be a two-letter code, as found in ISO639-1, with the possibility of specifying subcodes (eg. en-US for American English). See http://www.rssboard.org/rss-language-codes and http://www.loc.gov/standards/iso639-2/php/code_list.php

Type:	`str`
RSS:	language

last_updated¶

The last time the feed was generated. It defaults to the time and date at which the RSS is generated, if set to None. The default should be sufficient for most, if not all, use cases.

The value can either be a string, which will automatically be parsed into a datetime.datetime object when assigned, or a datetime.datetime object. In any case, the time and date must be timezone aware.

Set this to False to leave out this element instead of using the default.

Type:	`datetime.datetime`, `str` (will be converted to and stored as `datetime.datetime`), `None` for default or `False` to leave out.
RSS:	lastBuildDate

name = None¶

The name of the podcast as a str. It should be a human readable title. Often the same as the title of the associated website. This is mandatory and must not be blank.

Type:	`str`
RSS:	title

new_feed_url = None¶

When set, tell iTunes that your feed has moved to this URL.

After adding this attribute, you should maintain the old feed for 48 hours before retiring it. At that point, iTunes will have updated the directory with the new feed URL.

Type:	`str`
RSS:	itunes:new-feed-url

Warning

iTunes supports this mechanic of changing your feed’s location. However, you cannot assume the same of everyone else who has subscribed to this podcast. Therefore, you should NEVER stop supporting an old location for your podcast. Instead, you should create HTTP redirects so those with the old address are redirected to your new address, and keep those redirects up for all eternity.

Warning

Make sure the new URL you set is correct, or else you’re making people switch to a URL that doesn’t work!

owner¶

The Person who owns this podcast. iTunes will use this person’s name and email address for all correspondence related to this podcast. It will not be publicly displayed, but it’s still publicly available in the RSS source.

Both the name and email are required.

Type:	`podgen.Person`
RSS:	itunes:owner

publication_date¶

The publication date for the content in this podcast. You probably want to use the default value.

Default value:	If this is `None` when the feed is generated, the publication date of the episode with the latest publication date (which may be in the future) is used. If there are no episodes, the publication date is omitted from the feed.

If you set this to a str, it will be parsed and made into a datetime.datetime object when assigned. You may also set it to a datetime.datetime object directly. In any case, the time and date must be timezone aware.

If you want to forcefully omit the publication date from the feed, set this to False.

Type:	`datetime.datetime`, `str` (will be converted to and stored as `datetime.datetime`), `None` for default or `False` to leave out.
RSS:	pubDate

rss_file(filename, minimize=False, encoding='UTF-8', xml_declaration=True)[source]¶

Generate an RSS feed and write the resulting XML to a file.

Parameters:

filename (str or fd) – Name of file to write, or a file-like object, or a URL.
minimize (bool) – Set to True to disable splitting the feed into multiple lines and adding properly indentation, saving bytes at the cost of readability (default: False).
encoding (str) – Encoding used in the XML file (default: UTF-8).
xml_declaration (bool) – Whether an XML declaration should be added to the output (default: True).

Returns:

Nothing.

rss_str(minimize=False, encoding='UTF-8', xml_declaration=True)[source]¶

Generate an RSS feed and return the feed XML as string.

Parameters:	minimize (bool) – Set to True to disable splitting the feed into multiple lines and adding properly indentation, saving bytes at the cost of readability (default: False). encoding (str) – Encoding used in the XML file (default: UTF-8). xml_declaration (bool) – Whether an XML declaration should be added to the output (default: True).
Returns:	The generated RSS feed as a `str`.

set_generator(generator=None, version=None, uri=None, exclude_podgen=False)[source]¶

Set the generator of the feed, formatted nicely, which identifies the software used to generate the feed.

Parameters:	generator (str) – Software used to create the feed. version (`tuple` of `int`) – (Optional) Version of the software, as a tuple. uri (str) – (Optional) The software’s website. exclude_podgen (bool) – (Optional) Set to True if you don’t want PodGen to be mentioned (e.g., “My Program (using PodGen 1.0.0)”)

Type:	`set` of `int`
RSS:	skipHours