mergePage crash pypdf

[Pier Carteri]

Platform: Windows XP sp3
Python: 2.6.3
PyPdf: last official release 1.12 / same problem with last git

I'm trying to merge 2 page of different pdf into one with the following code:

from pyPdf import PdfFileWriter, PdfFileReader

#input file 1
in_1 = PdfFileReader(file("in_1.pdf", "rb"))

#input file 2
in_2 = PdfFileReader(file("in_2.pdf", "rb"))

page_1 = in_1.getPage(0)
page_1.mergePage(in_2.getPage(0))

output.addPage(page_1)
outputStream = file("out_2.pdf", "wb")
output.write(outputStream)
outputStream.close()

and i get this error

Traceback (most recent call last):
  File "merge_test.py", line 11, in <module>
    page_1.mergePage(in_2.getPage(0))
  File "c:\Python26\lib\site-packages\pyPdf\pdf.py", line 1102, in mergePage
    self._mergePage(page2)
  File "c:\Python26\lib\site-packages\pyPdf\pdf.py", line 1146, in _mergePage
    originalContent, self.pdf))
  File "c:\Python26\lib\site-packages\pyPdf\pdf.py", line 1065, in _pushPopGS
    stream = ContentStream(contents, pdf)
  File "c:\Python26\lib\site-packages\pyPdf\pdf.py", line 1440, in __init__
    self.__parseContentStream(stream)
  File "c:\Python26\lib\site-packages\pyPdf\pdf.py", line 1479, in __parseContentStream
    operands.append(readObject(stream, None))
  File "c:\Python26\lib\site-packages\pyPdf\generic.py", line 87, in readObject
    return NumberObject.readFromStream(stream)
  File "c:\Python26\lib\site-packages\pyPdf\generic.py", line 236, in readFromStream
    return NumberObject(name)
ValueError: invalid literal for int() with base 10: ''

Let me know if you need also the pdf I've used.
Thank you!

[Pier Carteri (pier-carteri)]

I' ve checked that this problem is related to the pdfs I'm using, because with other pdfs there is no crash.
I change the bug status to invalid.
Thanks!

[Olivier (oc-spam66)]

I don't get why this isn't a bug.

[Olivier (oc-spam66)]

I have the same bug.

[Olivier (oc-spam66)]

I can merge on the first page of this file, but not on the second.
The error is:
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)

     84 print "Page: " + str(n)
     85 page = base_pdf.getPage(n)
---> 86 page.mergePage(stamp_page)
     87 output.addPage(page)
     88

/usr/lib/pymodules/python2.6/pyPdf/pdf.pyc in mergePage(self, page2)
    995
    996 originalContent = self["/Contents"].getObject()
--> 997 newContentArray.append(PageObject._pushPopGS(originalContent, self.pdf))
    998
    999 page2Content = page2['/Contents'].getObject()

/usr/lib/pymodules/python2.6/pyPdf/pdf.pyc in _pushPopGS(contents, pdf)
    952 # of a content stream. This isolates it from changes such as

    953 # transformation matricies.

--> 954 stream = ContentStream(contents, pdf)
    955 stream.operations.insert(0, [[], "q"])
    956 stream.operations.append([[], "Q"])

/usr/lib/pymodules/python2.6/pyPdf/pdf.pyc in __init__(self, stream, pdf)
   1116 else:
   1117 stream = StringIO(stream.getData())
-> 1118 self.__parseContentStream(stream)
   1119
   1120 def __parseContentStream(self, stream):

/usr/lib/pymodules/python2.6/pyPdf/pdf.pyc in __parseContentStream(self, stream)
   1155 peek = stream.read(1)
   1156 else:
-> 1157 operands.append(readObject(stream, None))
   1158
   1159 def _readInlineImage(self, stream):

/usr/lib/pymodules/python2.6/pyPdf/generic.pyc in readObject(stream, pdf)
     85 return IndirectObject.readFromStream(stream, pdf)
     86 else:
---> 87 return NumberObject.readFromStream(stream)
     88
     89 class PdfObject(object):

/usr/lib/pymodules/python2.6/pyPdf/generic.pyc in readFromStream(stream)
    230 return FloatObject(name)
    231 else:
--> 232 return NumberObject(name)
    233 readFromStream = staticmethod(readFromStream)
    234

ValueError: invalid literal for int() with base 10: ''
------------------------------------------------------------------------------------------------------------

[Olivier (oc-spam66)]

The file I use for the merge is given here.

Best regards,

O.C.