Fix metadata recognition fb2 files

cps/fb2.py

@@ -30,50 +30,50 @@ def get_fb2_info(tmp_file_path, original_file_extension):
     }
 
     fb2_file = open(tmp_file_path)
-    tree = etree.fromstring(fb2_file.read())
+    tree = etree.fromstring(fb2_file.read().encode())
 
     authors = tree.xpath('/fb:FictionBook/fb:description/fb:title-info/fb:author', namespaces=ns)
 
     def get_author(element):
         last_name = element.xpath('fb:last-name/text()', namespaces=ns)
         if len(last_name):
-            last_name = last_name[0].encode('utf-8')
+            last_name = last_name[0]
         else:
             last_name = u''
         middle_name = element.xpath('fb:middle-name/text()', namespaces=ns)
         if len(middle_name):
-            middle_name = middle_name[0].encode('utf-8')
+            middle_name = middle_name[0]
         else:
             middle_name = u''
         first_name = element.xpath('fb:first-name/text()', namespaces=ns)
         if len(first_name):
-            first_name = first_name[0].encode('utf-8')
+            first_name = first_name[0]
         else:
             first_name = u''
-        return (first_name.decode('utf-8') + u' '
-                + middle_name.decode('utf-8') + u' '
-                + last_name.decode('utf-8')).encode('utf-8')
+        return (first_name + u' '
+                + middle_name + u' '
+                + last_name)
 
     author = str(", ".join(map(get_author, authors)))
 
     title = tree.xpath('/fb:FictionBook/fb:description/fb:title-info/fb:book-title/text()', namespaces=ns)
     if len(title):
-        title = str(title[0].encode('utf-8'))
+        title = str(title[0])
     else:
         title = u''
     description = tree.xpath('/fb:FictionBook/fb:description/fb:publish-info/fb:book-name/text()', namespaces=ns)
     if len(description):
-        description = str(description[0].encode('utf-8'))
+        description = str(description[0])
     else:
         description = u''
 
     return BookMeta(
         file_path=tmp_file_path,
         extension=original_file_extension,
-        title=title.decode('utf-8'),
-        author=author.decode('utf-8'),
+        title=title,
+        author=author,
         cover=None,
-        description=description.decode('utf-8'),
+        description=description,
         tags="",
         series="",
         series_id="",