obvious crash avoidance fixes

diff --git a/librarian/cover.py b/librarian/cover.py
index b53de30..1db96cb 100644 (file)
--- a/librarian/cover.py
+++ b/librarian/cover.py
@@ -121,7 +121,10 @@ class Cover(object):
         }
 
     def __init__(self, book_info, format=None):
-        self.author = ", ".join(auth.readable() for auth in book_info.authors)
+        try:
+            self.author = ", ".join(auth.readable() for auth in book_info.authors)
+        except AttributeError:
+            self.author = ""
         self.title = book_info.title
         if format is not None:
             self.format = format

diff --git a/librarian/pyhtml.py b/librarian/pyhtml.py
index 0f23125..775def1 100644 (file)
--- a/librarian/pyhtml.py
+++ b/librarian/pyhtml.py
@@ -82,7 +82,7 @@ class EduModule(Xmill):
             }
         submill = EduModule(dict(self.options.items() + {'sub_gen': True}.items()))
 
-        opis = submill.generate(element.xpath('opis')[0])
+        opis = submill.generate(element.xpath('opis')[0]) if len(element.xpath('opis')) else ""
 
         n = element.xpath('wskazowki')
         if n: wskazowki = submill.generate(n[0])
@@ -196,7 +196,7 @@ u"""%(wskazowki)s
                     subgen = EduModule(self.options)
                     definiens_s = subgen.generate(definiens)
             else:
-                print '!! Missing definiendum in source:', element.text
+                pass # print '!! Missing definiendum in source:', element.text
 
         return u"<dt>", u"</dt>" + definiens_s
 
@@ -334,7 +334,7 @@ class Wybor(Exercise):
         if not pytania:
             pytania = [element]
         for p in pytania:
-            solutions = re.split(r"[, ]+", p.attrib['rozw'])
+            solutions = re.split(r"[, ]+", p.attrib.get('rozw', ''))
             if len(solutions) != 1:
                 is_single_choice = False
                 break
@@ -471,14 +471,14 @@ class Przyporzadkuj(Exercise):
             if self.options['handles']:
                 return '<li><span data-solution="%s" data-no="%s" class="question-piece draggable handle add-li">%s</span>' % (element.attrib['rozw'], self.piece_counter, self.piece_counter), '</li>'
             else:
-                return '<li data-solution="%s" data-no="%s" class="question-piece draggable">' % (element.attrib['rozw'], self.piece_counter), '</li>'
+                return '<li data-solution="%s" data-no="%s" class="question-piece draggable">' % (element.attrib.get('rozw', ''), self.piece_counter), '</li>'
 
         elif self.options['predicate']:
             if self.options['min']:
                 placeholders = u'<li class="placeholder"/>' * self.options['min']
             else:
                 placeholders = u'<li class="placeholder multiple"/>'
-            return '<li data-predicate="%(nazwa)s">' % element.attrib, '<ul>' + placeholders + '</ul></li>'
+            return '<li data-predicate="%s">' % element.attrib.get('nazwa', ''), '<ul>' + placeholders + '</ul></li>'
 
         else:
             return super(Przyporzadkuj, self).handle_punkt(element)
@@ -528,7 +528,7 @@ class EduModuleFormat(Format):
         order = dict(reversed(k) for k in enumerate(self.PRIMARY_MATERIAL_FORMATS))
         mats = self.materials_by_slug.get(slug, {}).items()
         if not mats:
-            print "!! Material missing: '%s'" % slug
+            pass # print "!! Material missing: '%s'" % slug
         return sorted(mats, key=lambda (x, y): order.get(x, x))
 
     def url_for_material(self, slug, fmt):