Pack a webpage including support files into a single HTML file.
Installation and Requirements
Python 3.5 or greater is required for HTMLArk.
Install HTMLArk with pip like so:
pip install htmlark
To use the lxml (recommended) or html5lib parsers, you will need to install the lxml and/or html5lib Python libraries as well. HTMLArk can also get resources from the web, to enable this functionality you need Requests installed. You can install HTMLArk with all optional dependencies with this command:
pip install htmlark[http,parsers]
If you want to install it manually, the only hard dependency HTMLArk has is Beautiful Soup 4.
You can also get this information with htmlark --help.
Using HTMLArk as a module
You can also integrate HTMLArk into your own scripts, by importing it and calling convert_page. Example:
import htmlark packed_html = htmlark.convert_page("samplepage.html", ignore_errors=True)
def convert_page(page_path: str, parser: str='auto', callback: Callable[[str, str, str], None]=lambda *_: None, ignore_errors: bool=False, ignore_images: bool=False, ignore_css: bool=False, ignore_js: bool=False) -> str Take an HTML file or URL and outputs new HTML with resources as data URIs. Parameters: pageurl (str): URL or path of web page to convert. Keyword Arguments: parser (str): HTML Parser for Beautiful Soup 4 to use. See `BS4's docs. <http://www.crummy.com/software/BeautifulSoup/bs4/doc/#installing-a-parser>`_ Default: 'auto' - Not an actual parser, but tells the library to automatically choose a parser. ignore_errors (bool): If ``True`` do not abort on unreadable resources. Unprocessable tags (e.g. broken links) will simply be skipped. Default: ``False`` ignore_images (bool): If ``True`` do not process ``<img>`` tags. Default: ``False`` ignore_css (bool): If ``True`` do not process ``<link>`` (stylesheet) tags. Default: ``False`` ignore_js (bool): If ``True`` do not process ``<script>`` tags. Default: ``False`` callback (function): Called before a new resource is processed. Takes three parameters: message type ('INFO' or 'ERROR'), a string with the category of the callback (usually the tag related to the message), and the message data (usually a string to be printed). Returns: str: The new webpage HTML. Raises: OSError: Error reading a file ValueError: Problem with a path/URL requests.exceptions.RequestException: Problem getting remote resource NameError: HTMLArk requires Requests to be installed to get resources from the web. This error is raised when an external URL is encountered. Examples: A very basic conversion of a local HTML file, using default settings: >>> convert_page("webpage.html") <Converted page HTML> However, that example will fail if there are any problems accessing linked resources in the HTML (e.g. a missing image). If you cannot verify the validity of links ahead of time (converting a downloaded web page, for example) you can disable failing on error: >>> convert_page("brokenpage.html", ignore_errors=True) <Converted page HTML, tags with broken links untouched> You can also skip processing of content types: >>> convert_page("webpage.html", ignore_images=True) <Converted page HTML, with <img> tags untouched> If you want to get feedback on the progress of the conversion, you can define a callback function. For example, a callback that prints all CSS-related errors to stdout (note that ignore_errors will bypass broken links but still report them to the callback): >>> def mycallback(message_type, message_category, message): ... if message_type == 'ERROR' and message_category == 'link': ... print(message) >>> convert_page("badcss.html", ignore_errors=True, callback=mycallback) <Converted page HTML, CSS links untouched, CSS errors printed to screen>
See Can I Use’s page on data URIs for more compatibility information.
HTMLArk is released under the MIT license, which may be found in the LICENSE file.
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