Jun 8, 2024
diff --git a/ch14-interact-with-pdf-files/3-challenge-PdfFileSplitter-class.py b/ch14-interact-with-pdf-files/3-challenge-PdfFileSplitter-class.py
 # 14.5 - Challenge: PdfFileSplitter Class
 # Solution to challenge

 # the below code will work for python > 3.5
 from pathlib import Path

 from PyPDF2 importPdfFileReader, PdfFileWriter
 # the imported objects are as per the latest PyPDF2
 from PyPDF2 importPdfReader, PdfWriter


 class PdfFileSplitter:
    """Class for splitting a PDF into two files."""

    def __init__(self, pdf_path):
        # Open the PDF file with a new PdfFileReader instance
        self.pdf_reader = PdfFileReader(pdf_path)
        # Initialize the .writer1 and .writer2 attributes to None
        self.writer1 = None
        self.writer2 = None

    def split(self, breakpoint):
        """Split the PDF into two PdfFileWriter instances"""
        # Set .writer1 and .writer2 to new PdfFileWriter intances
        self.writer1 = PdfFileWriter()
        self.writer2 = PdfFileWriter()
        # Add all pages up to, but not including, the breakpoint
        # to writer1
        for page in self.pdf_reader.pages[:breakpoint]:
            self.writer1.addPage(page)
        # Add all the remaining pages to writer2
        for page in self.pdf_reader.pages[breakpoint:]:
            self.writer2.addPage(page)

    def write(self, filename):
        """Write both PdfFileWriter instances to files"""
        # Write the first file to <filename>_1.pdf
        with Path(filename + "_1.pdf").open(mode="wb") as output_file:
            self.writer1.write(output_file)
        # Write the second file to <filename>_2.pdf
        with Path(filename + "_2.pdf").open(mode="wb") as output_file:
            self.writer2.write(output_file)


 # Split the Pride_and_Prejudice.pdf file into two PDFs, the first
 # containing the first 150 pages, and the second containing the
 # remaining pages.
 pdf_splitter = PdfFileSplitter("ch14-interact-with-pdf-files/practice_files/Pride_and_Prejudice.pdf")
 pdf_splitter.split(breakpoint=150)
 pdf_splitter.write("pride_split")
    # class instantiated with path string
    # pdf reader class cannot be used from inside the class as it is not defined only in init
    def __init__(self,pdf_path):
        self.pdf_path = pdf_path

    def split(self, superpoint, breakpoint):
         # instantiate the writerobject
        self.writer1 = PdfWriter()
        self.writer2 = PdfWriter()

        # break the pages till breakpoint
        for page in range(breakpoint):
            pages1 = self.pdf_path.pages[page]
            self.writer1.add_page(pages1)
        # get the last page as input and remember order is positional argument and then key argument
        for page in range(breakpoint, superpoint):
            pages1 = self.pdf_path.pages[page]
            self.writer2.add_page(pages1)

    def write(self):
        # save the files with 1 and 2 names then check it with print statement
        with Path("1.pdf").open(mode = "wb") as file:
            self.writer1.write(file)
            print(f"File 1.pdf created successfully.")

        with Path("2.pdf").open(mode = "wb") as file:
            self.writer2.write(file)

 pdf_og = Path.home()/"Python_Complete_Guide.pdf"
 print(pdf_og)
 # pdf reader instance
 input_pdf = PdfReader(str(pdf_og))
 endpage = len(input_pdf.pages)
 print(endpage)

 # class is called with the instance created
 pf_splitter = PdfFileSplitter(input_pdf)
 pf_splitter.split(endpage,breakpoint = 150)
 pf_splitter.write()
Original file line number	Diff line number	Diff line change
		@@ -1,47 +1,46 @@
		# 14.5 - Challenge: PdfFileSplitter Class
		# Solution to challenge

		# the below code will work for python > 3.5
		from pathlib import Path

		from PyPDF2 importPdfFileReader, PdfFileWriter
		# the imported objects are as per the latest PyPDF2
		from PyPDF2 importPdfReader, PdfWriter


		class PdfFileSplitter:
		"""Class for splitting a PDF into two files."""

		def __init__(self, pdf_path):
		# Open the PDF file with a new PdfFileReader instance
		self.pdf_reader = PdfFileReader(pdf_path)
		# Initialize the .writer1 and .writer2 attributes to None
		self.writer1 = None
		self.writer2 = None

		def split(self, breakpoint):
		"""Split the PDF into two PdfFileWriter instances"""
		# Set .writer1 and .writer2 to new PdfFileWriter intances
		self.writer1 = PdfFileWriter()
		self.writer2 = PdfFileWriter()
		# Add all pages up to, but not including, the breakpoint
		# to writer1
		for page in self.pdf_reader.pages[:breakpoint]:
		self.writer1.addPage(page)
		# Add all the remaining pages to writer2
		for page in self.pdf_reader.pages[breakpoint:]:
		self.writer2.addPage(page)

		def write(self, filename):
		"""Write both PdfFileWriter instances to files"""
		# Write the first file to <filename>_1.pdf
		with Path(filename + "_1.pdf").open(mode="wb") as output_file:
		self.writer1.write(output_file)
		# Write the second file to <filename>_2.pdf
		with Path(filename + "_2.pdf").open(mode="wb") as output_file:
		self.writer2.write(output_file)


		# Split the Pride_and_Prejudice.pdf file into two PDFs, the first
		# containing the first 150 pages, and the second containing the
		# remaining pages.
		pdf_splitter = PdfFileSplitter("ch14-interact-with-pdf-files/practice_files/Pride_and_Prejudice.pdf")
		pdf_splitter.split(breakpoint=150)
		pdf_splitter.write("pride_split")
		# class instantiated with path string
		# pdf reader class cannot be used from inside the class as it is not defined only in init
		def __init__(self,pdf_path):
		self.pdf_path = pdf_path

		def split(self, superpoint, breakpoint):
		# instantiate the writerobject
		self.writer1 = PdfWriter()
		self.writer2 = PdfWriter()

		# break the pages till breakpoint
		for page in range(breakpoint):
		pages1 = self.pdf_path.pages[page]
		self.writer1.add_page(pages1)
		# get the last page as input and remember order is positional argument and then key argument
		for page in range(breakpoint, superpoint):
		pages1 = self.pdf_path.pages[page]
		self.writer2.add_page(pages1)

		def write(self):
		# save the files with 1 and 2 names then check it with print statement
		with Path("1.pdf").open(mode = "wb") as file:
		self.writer1.write(file)
		print(f"File 1.pdf created successfully.")

		with Path("2.pdf").open(mode = "wb") as file:
		self.writer2.write(file)

		pdf_og = Path.home()/"Python_Complete_Guide.pdf"
		print(pdf_og)
		# pdf reader instance
		input_pdf = PdfReader(str(pdf_og))
		endpage = len(input_pdf.pages)
		print(endpage)

		# class is called with the instance created
		pf_splitter = PdfFileSplitter(input_pdf)
		pf_splitter.split(endpage,breakpoint = 150)
		pf_splitter.write()