split pdf chapters

[pdmorete]

Hello,
I am trying to split pdf chapters from a series of pdf files.
I am using pyPdf library.
The page range to extract comes from a text file.
My code works fine for just one file but I don't know is how to specify variable input and output filenames.
Sorry if my question is stupid but I am new to programming.
Here is the code. Thank you for any help.

# import pyPdf and open the input file
from pyPdf import PdfFileWriter, PdfFileReader
output = PdfFileWriter()
input1 = PdfFileReader(file("EEAL1977.pdf", "rb"))

#process the text file with the page rangs
fh = open('pages.txt')
for line in fh:
line = line.strip()
a,z = [int(x) for x in line.split()]
print a,z

#add pages to the output file
for n in range (a, z):
output.addPage(input1.getPage(n))

#write the file and close
outputStream = file("document.pdf", "wb")
output.write(outputStream)
outputStream.close()

[pdmorete]

Well, I guess nobody was interested in the subject, so I answer myself, just in the case someone needs to use this in the future. The following is the correct code.
Now I only need to make it save with filenames that automatically increase by one. For now I just type the name for each extract I save

from pyPdf import PdfFileWriter, PdfFileReader
 
fh = open('pages.txt')
for line in fh:
                linea = line.strip()
                a,z = (int(x) for x in linea.split())
                print a,z
                print 'otro'
 
                output = PdfFileWriter()
                input1 = PdfFileReader(file("EEAL1977.pdf", "rb"))
                for e in range (a,z):
                    output.addPage(input1.getPage(e))
 
#        x = output.addPage(input1.getPage(n))
#        a = 1+a
#        z = 'document' + str(a) + '.pdf'
 
 
                outputStream = file(raw_input("save as: "), "wb")
                output.write(outputStream)
                outputStream.close()
                outputStream = None
 

[WhiteRider]

Well, I guess nobody was interested in the subject, so I answer myself, just in the case someone needs to use this in the future. The following is the correct code.
Now I only need to make it save with filenames that automatically increase by one. For now I just type the name for each extract I save

from pyPdf import PdfFileWriter, PdfFileReader
 
fh = open('pages.txt')
for line in fh:
                linea = line.strip()
                a,z = (int(x) for x in linea.split())
                print a,z
                print 'otro'
 
                output = PdfFileWriter()
                input1 = PdfFileReader(file("EEAL1977.pdf", "rb"))
                for e in range (a,z):
                    output.addPage(input1.getPage(e))
 
#        x = output.addPage(input1.getPage(n))
#        a = 1+a
#        z = 'document' + str(a) + '.pdf'
 
 
                outputStream = file(raw_input("save as: "), "wb")
                output.write(outputStream)
                outputStream.close()
                outputStream = None
 

Did you add this module? I don't seem to have it as a default. If you did download it separately then thats probably why you didn't get any help - since theres not many people with pyPdf experience. Be aware that this code won't work on other computers with just a standard install of Python. Each computer will need this extra module installed too.

Anyway I'm glad you found a solution =)