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Fix authors_to_string error with NoneType objects

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This commit is contained in:
John Schember 2009-01-24 08:46:23 -05:00
parent df88a9dfaa
commit 1556b1497a
1 changed files with 4 additions and 1 deletions
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5
src/calibre/ebooks/metadata/__init__.py
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@ -21,7 +21,10 @@ def string_to_authors(raw):
return authors return authors
def authors_to_string(authors): def authors_to_string(authors):
return ' & '.join([a.replace('&', '&&') for a in authors]) if authors is not None:
return ' & '.join([a.replace('&', '&&') for a in authors])
else:
return ''
def author_to_author_sort(author): def author_to_author_sort(author):
tokens = author.split() tokens = author.split()