epub-meta

Latest version: 0.0.6 (2016/12)

Small Python library to read metadata information from an ePub (2 and 3) file.

It does not depends on any library and run on Python 3 and 2.

Installation

pip install epub_meta

Usage

from epub_meta import get_epub_metadata, get_epub_opf_xml, EPubException

Discover the main metadata of the ePub file

>>> metadata = get_epub_metadata('/path/to/my_epub_file.epub')
>>> type(metadata)
<dict>
>>> metadata
{ ... }

Example:

>>> data = get_epub_metadata('/path/to/pro_git.epub', read_cover_image=True, read_toc=True)
>>> print(data)

{
    'authors': [u'Scott Chacon'],
    'epub_version': u'2.0',
    # ISBN, uuids etc
    'identifiers': [u'bf50c6e1-eb0a-4a1c-a2cd-ea8809ae086a', u'9781430218333'],
    'language': u'en',
    'publication_date': u'2009-08-19T00:00:00+00:00',
    'publisher': u'Springer',
    'subject': u'Software Development',
    'title': u'Pro Git',
    # import base64 ; base64.b64decode(data.cover_image_content)
    'cover_image_content': [base64 string],
    'cover_image_extension': '.jpg',
    'toc': [
        {'index': 0, 'title': 'Getting Started', 'src': 'progit_split_000.html', 'level': 0},
        {'index': 1, 'title': 'Git Basics', 'level': 0, 'src': 'progit_split_008.html'},
        {'index': 2, 'title': 'Git Branching', 'level': 0, 'src': 'progit_split_017.html'},
        {'index': 3, 'title': 'Git on the Server', 'src': 'progit_split_025.html', 'level': 0},
        {'index': 4, 'title': 'Distributed Git', 'src': 'progit_split_037.html', 'level': 0},
        {'index': 5, 'title': 'Git Tools', 'src': 'progit_split_042.html', 'index': 5, 'level': 0},
        {'index': 6, 'title': 'Customizing Git', 'src': 'progit_split_051.html', 'level': 0},
        {'index': 7, 'title': 'Git and Other Systems', 'src': 'progit_split_057.html', 'level': 0},
        {'index': 8, 'title': 'Git Internals', 'src': 'progit_split_061.html', 'level': 0}
    ],
    'file_size_in_bytes': 4346158
}

You can access the dict keys using dot notation:

data.authors
data.epub_version
...

You should check for invalid ePub files or for unknown ePub conventions:

try:
    get_epub_metadata('/path/to/my_epub_file.epub')    
except EPubException as e:
    print(e)

To discover and parse yourself the ePub OPF file, you can get the content of the OPF - XML file:

print(get_epub_opf_xml('/path/to/my_epub_file.epub'))

Change Log

0.0.6 (2016-12-12)

• Parsing and reading authors in pr02.html file if available
• Parsing and reading the publish date in pr01.html if available

0.0.5 (2016-11-02)

• No more duplicate authors (preserving the order)
• Improvements in the ToC parser/reader
• Avoid infinite loop for bad/unknown epub files

0.0.4 (2016-11-02)

• Backward incompatibility: Returning ToC as a list of objects instead of a list of strings
• The ToC information includes the source of the section: property src
• The ToC is hierarchical, so we include a level property to identify the depth of the toc item in the list
• The ToC order is important, so we include a index property to keep the order explicit
• Trimming some string values

0.0.3 (2016-08-23)

• Added the file size into the metadata dict

0.0.2 (2016-08-22)

• Fixed TOC discovering for ePub v3 files

0.0.1 (2016-08-19)

• get_epub_metadata(path, read_cover_image=True, read_toc=True) function
• get_epub_opf_xml(path) function
• Read cover image content in base64
• Read TOC contents as an list of strings

Development

Useful commands:

# Create a virtual env
make prepare

# Install al dependencies
make deps

# Run tests
make test

# Run tests with Tox (for all Python compatible versions)
make test_all

# Run coverage
make coverage

# Useful command for running tests before pushing to Git
make push