Create EPUB 3 from html5 file using ebooklib library

epubFromHtml.py

# coding=utf-8

## Demo: create EPUB 3 file from input html file
## Adapted from ebooklib basic_create sample

import codecs
from ebooklib import epub

if __name__ == '__main__':
    book = epub.EpubBook()

    # add metadata
    book.set_identifier('test123456')
    book.set_title('Sample book KB')
    book.set_language('nl')
    book.add_author('Mental Theo')

    # all text from html file
    # NOTE: must be HTML 5!
    # If necessary use pandoc to convert to html5: 
    # pandoc -t html5 test.htm -o test5.html

    f = codecs.open('test5.html', encoding='utf-8')
    text = f.read()
    f.close()

    c1 = epub.EpubHtml(title='Hoofdstuk 1', file_name='hoofdstuk_1.xhtml', lang='en')
    c1.content= text

    # add chapters to the book
    book.add_item(c1)

    # create table of contents
    book.toc = (c1,)

    # add navigation files
    book.add_item(epub.EpubNcx())
    book.add_item(epub.EpubNav())

    # define css style
    style = '''
@namespace epub "http://www.idpf.org/2007/ops";

body {
    font-family: Cambria, Liberation Serif, Bitstream Vera Serif, Georgia, Times, Times New Roman, serif;
}

h2 {
     text-align: left;
     text-transform: uppercase;
     font-weight: 200;     
}

ol {
        list-style-type: none;
}

ol > li:first-child {
        margin-top: 0.3em;
}


nav[epub|type~='toc'] > ol > li > ol  {
    list-style-type:square;
}


nav[epub|type~='toc'] > ol > li > ol > li {
        margin-top: 0.3em;
}

'''

    # add css file
    nav_css = epub.EpubItem(uid="style_nav", file_name="style/nav.css", media_type="text/css", content=style)
    book.add_item(nav_css)

    # create spine
    book.spine = ['nav', c1]

    # create epub file
    epub.write_epub('testKB.epub', book, {})