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Fix #2613 (ValueError: max() arg is an empty sequence)

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Kovid Goyal 2009-06-17 13:01:55 -07:00
parent d0be2b91a9
commit d96ad4bfe5
1 changed files with 23 additions and 0 deletions
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23
src/calibre/ebooks/oeb/base.py
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@ -321,6 +321,27 @@ def urlnormalize(href):
parts = (urlquote(part) for part in parts)
return urlunparse(parts)
def merge_multiple_html_heads_and_bodies(root, log=None):
heads, bodies = xpath(root, '//h:head'), xpath(root, '//h:body')
if not (len(heads) > 1 or len(bodies) > 1): return root
for child in root: root.remove(child)
head = root.makeelement(XHTML('head'))
body = root.makeelement(XHTML('body'))
for h in heads:
for x in h:
head.append(x)
for b in bodies:
for x in b:
body.append(x)
map(root.append, (head, body))
if log is not None:
log.warn('Merging multiple <head> and <body> sections')
return root
class DummyHandler(logging.Handler):
def __init__(self):
@ -786,6 +807,8 @@ class Manifest(object):
for elem in data:
nroot.append(elem)
data = nroot
data = merge_multiple_html_heads_and_bodies(data, self.oeb.logger)
# Ensure has a <head/>
head = xpath(data, '/h:html/h:head')
head = head[0] if head else None