Ebook processing - more pythonic string coercion

Avoid the regurgitation of errors due to trying to add a string to an
integer

Signed-off-by: Dan Scott <dscott@laurentian.ca>

diff --git a/tools/ebooks/prep_ebook_records.py b/tools/ebooks/prep_ebook_records.py
index 14de27f..6908a7e 100644 (file)
--- a/tools/ebooks/prep_ebook_records.py
+++ b/tools/ebooks/prep_ebook_records.py
@@ -494,7 +494,7 @@ def process_fields(record, options, bib_id, dup_flag):
 
     # 909
     if dup_flag:
-        dup_value = bib_id + ""
+        dup_value = str(bib_id)
         dup = pymarc.Field(tag = '909',
             indicators = [' ', ' '],
             subfields = [