The "data.pdf" can be of type PdfFileWriter, which does not have a "s…

…tream" attribute. (#15)
sfneal · Feb 3, 2022 · 231af75 · 231af75
1 parent 5ed4677
commit 231af75
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/PyPDF3/pdf.py b/PyPDF3/pdf.py
@@ -621,7 +621,7 @@ def _sweepIndirectReferences(self, externMap, data):
                     self._sweepIndirectReferences(externMap, realdata)
                     return data
             else:
-                if data.pdf.stream.closed:
+                if hasattr(data.pdf, 'stream') and data.pdf.stream.closed:
                     raise ValueError("I/O operation on closed file: {}".format(data.pdf.stream.name))
                 newobj = externMap.get(data.pdf, {}).get(data.generation, {}).get(data.idnum, None)
                 if newobj == None: