set 5pt page margin instead of oversized 2em book margin

[librarian.git] / librarian / epub.py

diff --git a/librarian/epub.py b/librarian/epub.py
index e52e524..4677229 100644 (file)
--- a/librarian/epub.py
+++ b/librarian/epub.py
@@ -11,6 +11,8 @@ import re
 import subprocess
 from StringIO import StringIO
 from copy import deepcopy
 import subprocess
 from StringIO import StringIO
 from copy import deepcopy

+from mimetypes import guess_type
+

 from lxml import etree
 import zipfile
 from tempfile import mkdtemp, NamedTemporaryFile
 from lxml import etree
 import zipfile
 from tempfile import mkdtemp, NamedTemporaryFile


@@ -26,6 +28,7 @@ from librarian.hyphenator import Hyphenator
 functions.reg_person_name()
 functions.reg_lang_code_3to2()
 
 functions.reg_person_name()
 functions.reg_lang_code_3to2()
 

+

 def set_hyph_language(source_tree):
     def get_short_lng_code(text):
         result = ''
 def set_hyph_language(source_tree):
     def get_short_lng_code(text):
         result = ''


@@ -34,33 +37,39 @@ def set_hyph_language(source_tree):
             for line in f:
                 list = line.strip().split('|')
                 if list[0] == text:
             for line in f:
                 list = line.strip().split('|')
                 if list[0] == text:

-                    result=list[2]
+                    result = list[2]

         if result == '':
             return text
         else:
             return result
         if result == '':
             return text
         else:
             return result

-    bibl_lng = etree.XPath('//dc:language//text()', namespaces = {'dc':str(DCNS)})(source_tree)
-    short_lng = get_short_lng_code(bibl_lng[0])   
+    bibl_lng = etree.XPath('//dc:language//text()',
+                           namespaces={'dc': str(DCNS)})(source_tree)
+    short_lng = get_short_lng_code(bibl_lng[0])

     try:
     try:

-        return Hyphenator(get_resource('res/hyph-dictionaries/hyph_' + short_lng + '.dic'))
+        return Hyphenator(get_resource('res/hyph-dictionaries/hyph_' +
+                                       short_lng + '.dic'))

     except:
         pass
     except:
         pass

-    
+
+

 def hyphenate_and_fix_conjunctions(source_tree, hyph):
 def hyphenate_and_fix_conjunctions(source_tree, hyph):

-    if hyph is not None:
-        texts = etree.XPath('/utwor/*[2]//text()')(source_tree)
-        for t in texts:
-            parent = t.getparent()
+    texts = etree.XPath('/utwor/*[2]//text()')(source_tree)
+    for t in texts:
+        parent = t.getparent()
+        if hyph is not None:

             newt = ''
             wlist = re.compile(r'\w+|[^\w]', re.UNICODE).findall(t)
             for w in wlist:
             newt = ''
             wlist = re.compile(r'\w+|[^\w]', re.UNICODE).findall(t)
             for w in wlist:

-                newt += hyph.inserted(w, u'\u00AD')       
-            newt = re.sub(r'(?<=\s\w)\s+', u'\u00A0', newt)
-            if t.is_text:
-                parent.text = newt
-            elif t.is_tail:
-                parent.tail = newt
-        
+                newt += hyph.inserted(w, u'\u00AD')
+        else:
+            newt = t
+        newt = re.sub(r'(?<=\s\w)\s+', u'\u00A0', newt)
+        if t.is_text:
+            parent.text = newt
+        elif t.is_tail:
+            parent.tail = newt
+
+

 def inner_xml(node):
     """ returns node's text and children as a string
 
 def inner_xml(node):
     """ returns node's text and children as a string
 


@@ -71,6 +80,7 @@ def inner_xml(node):
     nt = node.text if node.text is not None else ''
     return ''.join([nt] + [etree.tostring(child) for child in node])
 
     nt = node.text if node.text is not None else ''
     return ''.join([nt] + [etree.tostring(child) for child in node])
 

+

 def set_inner_xml(node, text):
     """ sets node's text and children from a string
 
 def set_inner_xml(node, text):
     """ sets node's text and children from a string
 


@@ -134,7 +144,7 @@ def find_annotations(annotations, source, part_no):
     for child in source:
         if child.tag in ('pe', 'pa', 'pt', 'pr'):
             annotation = deepcopy(child)
     for child in source:
         if child.tag in ('pe', 'pa', 'pt', 'pr'):
             annotation = deepcopy(child)

-            number = str(len(annotations)+1)
+            number = str(len(annotations) + 1)

             annotation.set('number', number)
             annotation.set('part', str(part_no))
             annotation.tail = ''
             annotation.set('number', number)
             annotation.set('part', str(part_no))
             annotation.tail = ''


@@ -159,7 +169,7 @@ class Stanza(object):
     >>> print etree.tostring(s)
     <strofa><wers_normalny>a <b>c</b> <b>c</b></wers_normalny><wers_normalny>b<x>x/
     y</x>c</wers_normalny><wers_normalny>d</wers_normalny></strofa>
     >>> print etree.tostring(s)
     <strofa><wers_normalny>a <b>c</b> <b>c</b></wers_normalny><wers_normalny>b<x>x/
     y</x>c</wers_normalny><wers_normalny>d</wers_normalny></strofa>

-    
+

     """
     def __init__(self, stanza_elem):
         self.stanza = stanza_elem
     """
     def __init__(self, stanza_elem):
         self.stanza = stanza_elem


@@ -221,18 +231,17 @@ def add_to_manifest(manifest, partno):
     """ Adds a node to the manifest section in content.opf file """
 
     partstr = 'part%d' % partno
     """ Adds a node to the manifest section in content.opf file """
 
     partstr = 'part%d' % partno

-    e = manifest.makeelement(OPFNS('item'), attrib={
-                                 'id': partstr,
-                                 'href': partstr + '.html',
-                                 'media-type': 'application/xhtml+xml',
-                             })
+    e = manifest.makeelement(
+        OPFNS('item'), attrib={'id': partstr, 'href': partstr + '.html',
+                               'media-type': 'application/xhtml+xml'}
+    )

     manifest.append(e)
 
 
 def add_to_spine(spine, partno):
     """ Adds a node to the spine section in content.opf file """
 
     manifest.append(e)
 
 
 def add_to_spine(spine, partno):
     """ Adds a node to the spine section in content.opf file """
 

-    e = spine.makeelement(OPFNS('itemref'), attrib={'idref': 'part%d' % partno});
+    e = spine.makeelement(OPFNS('itemref'), attrib={'idref': 'part%d' % partno})

     spine.append(e)
 
 
     spine.append(e)
 
 


@@ -246,7 +255,7 @@ class TOC(object):
     def add(self, name, part_href, level=0, is_part=True, index=None):
         assert level == 0 or index is None
         if level > 0 and self.children:
     def add(self, name, part_href, level=0, is_part=True, index=None):
         assert level == 0 or index is None
         if level > 0 and self.children:

-            return self.children[-1].add(name, part_href, level-1, is_part)
+            return self.children[-1].add(name, part_href, level - 1, is_part)

         else:
             t = TOC(name)
             t.part_href = part_href
         else:
             t = TOC(name)
             t.part_href = part_href


@@ -304,7 +313,7 @@ class TOC(object):
             texts.append(
                 "<div style='margin-left:%dem;'><a href='%s'>%s</a></div>" %
                 (depth, child.href(), child.name))
             texts.append(
                 "<div style='margin-left:%dem;'><a href='%s'>%s</a></div>" %
                 (depth, child.href(), child.name))

-            texts.append(child.html_part(depth+1))
+            texts.append(child.html_part(depth + 1))

         return "\n".join(texts)
 
     def html(self):
         return "\n".join(texts)
 
     def html(self):


@@ -327,10 +336,10 @@ def chop(main_text):
     # prepare a container for each chunk
     part_xml = etree.Element('utwor')
     etree.SubElement(part_xml, 'master')
     # prepare a container for each chunk
     part_xml = etree.Element('utwor')
     etree.SubElement(part_xml, 'master')

-    main_xml_part = part_xml[0] # master
+    main_xml_part = part_xml[0]  # master

 
     last_node_part = False
 
     last_node_part = False

-    
+

     # the below loop are workaround for a problem with epubs in drama ebooks without acts
     is_scene = False
     is_act = False
     # the below loop are workaround for a problem with epubs in drama ebooks without acts
     is_scene = False
     is_act = False


@@ -340,7 +349,7 @@ def chop(main_text):
             is_scene = True
         elif name == 'naglowek_akt':
             is_act = True
             is_scene = True
         elif name == 'naglowek_akt':
             is_act = True

-    
+

     for one_part in main_text:
         name = one_part.tag
         if is_act is False and is_scene is True:
     for one_part in main_text:
         name = one_part.tag
         if is_act is False and is_scene is True:


@@ -364,7 +373,7 @@ def chop(main_text):
                 main_xml_part[:] = [deepcopy(one_part)]
             else:
                 main_xml_part.append(deepcopy(one_part))
                 main_xml_part[:] = [deepcopy(one_part)]
             else:
                 main_xml_part.append(deepcopy(one_part))

-                last_node_part = False            
+                last_node_part = False

     yield part_xml
 
 
     yield part_xml
 
 


@@ -390,17 +399,17 @@ def transform_chunk(chunk_xml, chunk_no, annotations, empty=False, _empty_html_s
         replace_by_verse(chunk_xml)
         html_tree = xslt(chunk_xml, get_resource('epub/xsltScheme.xsl'))
         chars = used_chars(html_tree.getroot())
         replace_by_verse(chunk_xml)
         html_tree = xslt(chunk_xml, get_resource('epub/xsltScheme.xsl'))
         chars = used_chars(html_tree.getroot())

-        output_html = etree.tostring(html_tree, pretty_print = True,
-                    xml_declaration = True,
-                    encoding = "utf-8",
-                    doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" ' +
-                            '"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">')
+        output_html = etree.tostring(
+            html_tree, pretty_print=True, xml_declaration=True,
+            encoding="utf-8",
+            doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" ' +
+                    '"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
+        )

     return output_html, toc, chars
 
 
     return output_html, toc, chars
 
 

-def transform(wldoc, verbose=False,
-              style=None, html_toc=False,
-              sample=None, cover=None, flags=None):
+def transform(wldoc, verbose=False, style=None, html_toc=False,
+              sample=None, cover=None, flags=None, hyphenate=False, ilustr_path=''):

     """ produces a EPUB file
 
     sample=n: generate sample e-book (with at least n paragraphs)
     """ produces a EPUB file
 
     sample=n: generate sample e-book (with at least n paragraphs)


@@ -412,11 +421,10 @@ def transform(wldoc, verbose=False,
         """ processes one input file and proceeds to its children """
 
         replace_characters(wldoc.edoc.getroot())
         """ processes one input file and proceeds to its children """
 
         replace_characters(wldoc.edoc.getroot())

-        
-        hyphenator = set_hyph_language(wldoc.edoc.getroot())
+
+        hyphenator = set_hyph_language(wldoc.edoc.getroot()) if hyphenate else None

         hyphenate_and_fix_conjunctions(wldoc.edoc.getroot(), hyphenator)
         hyphenate_and_fix_conjunctions(wldoc.edoc.getroot(), hyphenator)

-        
-        
+

         # every input file will have a TOC entry,
         # pointing to starting chunk
         toc = TOC(wldoc.book_info.title, "part%d.html" % chunk_counter)
         # every input file will have a TOC entry,
         # pointing to starting chunk
         toc = TOC(wldoc.book_info.title, "part%d.html" % chunk_counter)


@@ -425,12 +433,15 @@ def transform(wldoc, verbose=False,
             # write book title page
             html_tree = xslt(wldoc.edoc, get_resource('epub/xsltTitle.xsl'))
             chars = used_chars(html_tree.getroot())
             # write book title page
             html_tree = xslt(wldoc.edoc, get_resource('epub/xsltTitle.xsl'))
             chars = used_chars(html_tree.getroot())

-            zip.writestr('OPS/title.html',
-                 etree.tostring(html_tree, pretty_print = True,
-                       xml_declaration = True,
-                    encoding = "utf-8",
-                    doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" ' +
-                            '"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'))
+            zip.writestr(
+                'OPS/title.html',
+                etree.tostring(
+                    html_tree, pretty_print=True, xml_declaration=True,
+                    encoding="utf-8",
+                    doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"' +
+                            ' "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
+                )
+            )

             # add a title page TOC entry
             toc.add(u"Strona tytułowa", "title.html")
         elif wldoc.book_info.parts:
             # add a title page TOC entry
             toc.add(u"Strona tytułowa", "title.html")
         elif wldoc.book_info.parts:


@@ -441,12 +452,12 @@ def transform(wldoc, verbose=False,
             else:
                 html_tree = xslt(wldoc.edoc, get_resource('epub/xsltChunkTitle.xsl'))
                 chars = used_chars(html_tree.getroot())
             else:
                 html_tree = xslt(wldoc.edoc, get_resource('epub/xsltChunkTitle.xsl'))
                 chars = used_chars(html_tree.getroot())

-                html_string = etree.tostring(html_tree, 
-                       pretty_print = True,
-                    xml_declaration = True,
-                    encoding = "utf-8",
-                    doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" ' +
-                            '"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">')
+                html_string = etree.tostring(
+                    html_tree, pretty_print=True, xml_declaration=True,
+                    encoding="utf-8",
+                    doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"' +
+                            ' "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
+                )

             zip.writestr('OPS/part%d.html' % chunk_counter, html_string)
             add_to_manifest(manifest, chunk_counter)
             add_to_spine(spine, chunk_counter)
             zip.writestr('OPS/part%d.html' % chunk_counter, html_string)
             add_to_manifest(manifest, chunk_counter)
             add_to_spine(spine, chunk_counter)


@@ -486,7 +497,6 @@ def transform(wldoc, verbose=False,
 
         return toc, chunk_counter, chars, sample
 
 
         return toc, chunk_counter, chars, sample
 

-

     document = deepcopy(wldoc)
     del wldoc
 
     document = deepcopy(wldoc)
     del wldoc
 


@@ -494,9 +504,14 @@ def transform(wldoc, verbose=False,
         for flag in flags:
             document.edoc.getroot().set(flag, 'yes')
 
         for flag in flags:
             document.edoc.getroot().set(flag, 'yes')
 

+    document.clean_ed_note()
+    document.clean_ed_note('abstrakt')
+

     # add editors info
     # add editors info

-    document.edoc.getroot().set('editors', u', '.join(sorted(
-        editor.readable() for editor in document.editors())))
+    editors = document.editors()
+    if editors:
+        document.edoc.getroot().set('editors', u', '.join(sorted(
+            editor.readable() for editor in editors)))

     if document.book_info.funders:
         document.edoc.getroot().set('funders', u', '.join(
             document.book_info.funders))
     if document.book_info.funders:
         document.edoc.getroot().set('funders', u', '.join(
             document.book_info.funders))


@@ -511,19 +526,34 @@ def transform(wldoc, verbose=False,
     output_file = NamedTemporaryFile(prefix='librarian', suffix='.epub', delete=False)
     zip = zipfile.ZipFile(output_file, 'w', zipfile.ZIP_DEFLATED)
 
     output_file = NamedTemporaryFile(prefix='librarian', suffix='.epub', delete=False)
     zip = zipfile.ZipFile(output_file, 'w', zipfile.ZIP_DEFLATED)
 

+    functions.reg_mathml_epub(zip)
+
+    for i, filename in enumerate(os.listdir(ilustr_path)):
+        file_path = os.path.join(ilustr_path, filename)
+        zip.write(file_path, os.path.join('OPS', filename))
+        image_id = 'image%s' % i
+        manifest.append(etree.fromstring(
+            '<item id="%s" href="%s" media-type="%s" />' % (image_id, filename, guess_type(file_path)[0])))
+

     # write static elements
     mime = zipfile.ZipInfo()
     mime.filename = 'mimetype'
     mime.compress_type = zipfile.ZIP_STORED
     mime.extra = ''
     zip.writestr(mime, 'application/epub+zip')
     # write static elements
     mime = zipfile.ZipInfo()
     mime.filename = 'mimetype'
     mime.compress_type = zipfile.ZIP_STORED
     mime.extra = ''
     zip.writestr(mime, 'application/epub+zip')

-    zip.writestr('META-INF/container.xml', '<?xml version="1.0" ?><container version="1.0" ' \
-                       'xmlns="urn:oasis:names:tc:opendocument:xmlns:container">' \
-                       '<rootfiles><rootfile full-path="OPS/content.opf" ' \
-                       'media-type="application/oebps-package+xml" />' \
-                       '</rootfiles></container>')
-    zip.write(get_resource('res/wl-logo-small.png'), os.path.join('OPS', 'logo_wolnelektury.png'))
-    zip.write(get_resource('res/jedenprocent.png'), os.path.join('OPS', 'jedenprocent.png'))
+    zip.writestr(
+        'META-INF/container.xml',
+        '<?xml version="1.0" ?>'
+        '<container version="1.0" '
+        'xmlns="urn:oasis:names:tc:opendocument:xmlns:container">'
+        '<rootfiles><rootfile full-path="OPS/content.opf" '
+        'media-type="application/oebps-package+xml" />'
+        '</rootfiles></container>'
+    )
+    zip.write(get_resource('res/wl-logo-small.png'),
+              os.path.join('OPS', 'logo_wolnelektury.png'))
+    zip.write(get_resource('res/jedenprocent.png'),
+              os.path.join('OPS', 'jedenprocent.png'))

     if not style:
         style = get_resource('epub/style.css')
     zip.write(style, os.path.join('OPS', 'style.css'))
     if not style:
         style = get_resource('epub/style.css')
     zip.write(style, os.path.join('OPS', 'style.css'))


@@ -542,9 +572,11 @@ def transform(wldoc, verbose=False,
         cover_tree = etree.parse(get_resource('epub/cover.html'))
         cover_tree.find('//' + XHTMLNS('img')).set('src', cover_name)
         zip.writestr('OPS/cover.html', etree.tostring(
         cover_tree = etree.parse(get_resource('epub/cover.html'))
         cover_tree.find('//' + XHTMLNS('img')).set('src', cover_name)
         zip.writestr('OPS/cover.html', etree.tostring(

-                        cover_tree, pretty_print = True, xml_declaration = True, encoding = "utf-8",
-                       doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" ' +
-                            '"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'))
+            cover_tree, pretty_print=True, xml_declaration=True,
+            encoding="utf-8",
+            doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" ' +
+                    '"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
+        ))

 
         if bound_cover.uses_dc_cover:
             if document.book_info.cover_by:
 
         if bound_cover.uses_dc_cover:
             if document.book_info.cover_by:


@@ -560,14 +592,16 @@ def transform(wldoc, verbose=False,
         opf.getroot()[0].append(etree.fromstring('<meta name="cover" content="cover-image"/>'))
         guide.append(etree.fromstring('<reference href="cover.html" type="cover" title="Okładka"/>'))
 
         opf.getroot()[0].append(etree.fromstring('<meta name="cover" content="cover-image"/>'))
         guide.append(etree.fromstring('<reference href="cover.html" type="cover" title="Okładka"/>'))
 

-

     annotations = etree.Element('annotations')
 
     annotations = etree.Element('annotations')
 

-    toc_file = etree.fromstring('<?xml version="1.0" encoding="utf-8"?><!DOCTYPE ncx PUBLIC ' \
-                               '"-//NISO//DTD ncx 2005-1//EN" "http://www.daisy.org/z3986/2005/ncx-2005-1.dtd">' \
-                               '<ncx xmlns="http://www.daisy.org/z3986/2005/ncx/" xml:lang="pl" ' \
-                               'version="2005-1"><head></head><docTitle></docTitle><navMap>' \
-                               '</navMap></ncx>')
+    toc_file = etree.fromstring(
+        '<?xml version="1.0" encoding="utf-8"?><!DOCTYPE ncx PUBLIC '
+        '"-//NISO//DTD ncx 2005-1//EN" '
+        '"http://www.daisy.org/z3986/2005/ncx-2005-1.dtd">'
+        '<ncx xmlns="http://www.daisy.org/z3986/2005/ncx/" xml:lang="pl" '
+        'version="2005-1"><head></head><docTitle></docTitle><navMap>'
+        '</navMap></ncx>'
+    )

     nav_map = toc_file[-1]
 
     if html_toc:
     nav_map = toc_file[-1]
 
     if html_toc:


@@ -593,11 +627,11 @@ def transform(wldoc, verbose=False,
         html_tree = xslt(annotations, get_resource('epub/xsltAnnotations.xsl'))
         chars = chars.union(used_chars(html_tree.getroot()))
         zip.writestr('OPS/annotations.html', etree.tostring(
         html_tree = xslt(annotations, get_resource('epub/xsltAnnotations.xsl'))
         chars = chars.union(used_chars(html_tree.getroot()))
         zip.writestr('OPS/annotations.html', etree.tostring(

-                            html_tree, pretty_print = True,
-                               xml_declaration = True,
-                               encoding = "utf-8",
-                               doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" ' +
-                            '"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'))
+            html_tree, pretty_print=True, xml_declaration=True,
+            encoding="utf-8",
+            doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" ' +
+                    '"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
+        ))

 
     toc.add("Wesprzyj Wolne Lektury", "support.html")
     manifest.append(etree.fromstring(
 
     toc.add("Wesprzyj Wolne Lektury", "support.html")
     manifest.append(etree.fromstring(


@@ -616,13 +650,13 @@ def transform(wldoc, verbose=False,
     html_tree = xslt(document.edoc, get_resource('epub/xsltLast.xsl'))
     chars.update(used_chars(html_tree.getroot()))
     zip.writestr('OPS/last.html', etree.tostring(
     html_tree = xslt(document.edoc, get_resource('epub/xsltLast.xsl'))
     chars.update(used_chars(html_tree.getroot()))
     zip.writestr('OPS/last.html', etree.tostring(

-                        html_tree, pretty_print = True,
-                       xml_declaration = True,
-                       encoding = "utf-8",
-                       doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" ' +
-                            '"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'))
+        html_tree, pretty_print=True, xml_declaration=True,
+        encoding="utf-8",
+        doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" ' +
+                '"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
+    ))

 
 

-    if not flags or not 'without-fonts' in flags:
+    if not flags or 'without-fonts' not in flags:

         # strip fonts
         tmpdir = mkdtemp('-librarian-epub')
         try:
         # strip fonts
         tmpdir = mkdtemp('-librarian-epub')
         try:


@@ -632,8 +666,10 @@ def transform(wldoc, verbose=False,
 
         os.chdir(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'font-optimizer'))
         for fname in 'DejaVuSerif.ttf', 'DejaVuSerif-Bold.ttf', 'DejaVuSerif-Italic.ttf', 'DejaVuSerif-BoldItalic.ttf':
 
         os.chdir(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'font-optimizer'))
         for fname in 'DejaVuSerif.ttf', 'DejaVuSerif-Bold.ttf', 'DejaVuSerif-Italic.ttf', 'DejaVuSerif-BoldItalic.ttf':

-            optimizer_call = ['perl', 'subset.pl', '--chars', ''.join(chars).encode('utf-8'),
-                          get_resource('fonts/' + fname), os.path.join(tmpdir, fname)]              
+            optimizer_call = ['perl', 'subset.pl', '--chars',
+                              ''.join(chars).encode('utf-8'),
+                              get_resource('fonts/' + fname),
+                              os.path.join(tmpdir, fname)]

             if verbose:
                 print "Running font-optimizer"
                 subprocess.check_call(optimizer_call)
             if verbose:
                 print "Running font-optimizer"
                 subprocess.check_call(optimizer_call)


@@ -645,9 +681,8 @@ def transform(wldoc, verbose=False,
         rmtree(tmpdir)
         if cwd is not None:
             os.chdir(cwd)
         rmtree(tmpdir)
         if cwd is not None:
             os.chdir(cwd)

-    zip.writestr('OPS/content.opf', etree.tostring(opf, pretty_print = True,
-                    xml_declaration = True,
-                    encoding = "utf-8"))
+    zip.writestr('OPS/content.opf', etree.tostring(opf, pretty_print=True,
+                 xml_declaration=True, encoding="utf-8"))

     title = document.book_info.title
     attributes = "dtb:uid", "dtb:depth", "dtb:totalPageCount", "dtb:maxPageNumber"
     for st in attributes:
     title = document.book_info.title
     attributes = "dtb:uid", "dtb:depth", "dtb:totalPageCount", "dtb:maxPageNumber"
     for st in attributes:


@@ -664,9 +699,8 @@ def transform(wldoc, verbose=False,
         toc.add(u"Spis treści", "toc.html", index=1)
         zip.writestr('OPS/toc.html', toc.html().encode('utf-8'))
     toc.write_to_xml(nav_map)
         toc.add(u"Spis treści", "toc.html", index=1)
         zip.writestr('OPS/toc.html', toc.html().encode('utf-8'))
     toc.write_to_xml(nav_map)

-    zip.writestr('OPS/toc.ncx', etree.tostring(toc_file, pretty_print = True,
-                    xml_declaration = True,
-                    encoding = "utf-8"))
+    zip.writestr('OPS/toc.ncx', etree.tostring(toc_file, pretty_print=True,
+                 xml_declaration=True, encoding="utf-8"))

     zip.close()
 
     return OutputFile.from_filename(output_file.name)
     zip.close()
 
     return OutputFile.from_filename(output_file.name)