12 basic python.ipynb

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    "BASIC PYTHON PROGRAMMING\n",
    "\n",
    "ASSIGNMENT-12\n",
    "\n",
    "1. In what modes should the PdfFileReader() and PdfFileWriter() File objects will be opened?\n",
    "Ans: For PdfFileReader() file objects should be opened in rb -> read binary mode, Whereas for PdfFileWriter() file objects should be opened in wb -> write binary mode.\n",
    "\n",
    "2. From a PdfFileReader object, how do you get a Page object for page 5?\n",
    "Ans: PdfFileReader class provides a method called getPage(page_no) to get a page object."
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    "# Example Code:\n",
    "from PyPDF2 import PdfFileReader\n",
    "pdf_reader = PdfFileReader(file_path)\n",
    "for page in pdf_reader.getNumPages():\n",
    "    pdf_reader.getPage(page)"
   ]
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    "3. What PdfFileReader variable stores the number of pages in the PDF document?\n",
    "Ans: getNumPages() method of PdfFileReader class stores the no pages in a PDF document"
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    "#Example Code:\n",
    "from PyPDF2 import PdfFileReader\n",
    "pdf_reader = PdfFileReader(file_path)\n",
    "print(pdf_reader.getNumPages()) # Prints the no of pages in a input document"
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    "4. If a PdfFileReader object’s PDF is encrypted with the password swordfish, what must you do before you can obtain Page objects from it?\n",
    "Ans: If a PdfFileReader object’s PDF is encrypted with the password swordfish and you're not aware of it. first read the Pdf using the PdfFileReader Class. PdfFileReader class provides a attribute called isEncrypted to check whether a pdf is encrypted or not. the method returns true if a pdf is encrypted and vice versa.\n",
    "if pdf is encrypted use the decrypt() method provided by PdfFileReader class first then try to read the contents/pages of the pdf, else PyPDF2 will raise the following error PyPDF2.utils.PdfReadError: file has not been decrypted\n",
    "\n"
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    "#Example Code:\n",
    "from PyPDF2 import PdfFileReader\n",
    "pdf_reader = PdfFileReader(file_path)\n",
    "if pdf_reader.isEncrypted: # to check whether the pdf is encrypted or not\n",
    "    pdf_reader.decrypt(\"swordfish\")\n",
    "for page in pdf_reader.pages:\n",
    "    print(page.extractText()) # to print the text data of a page from pdf"
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    "5. What methods do you use to rotate a page?\n",
    "Ans: PyPDF2 Package provides 2 methods to rotate a page:\n",
    "\n",
    "rotateClockWise() -> For Clockwise rotation\n",
    "rotateCounterClockWise() -> For Counter Clockwise rotation\n",
    "The PyPDF2 package only allows you to rotate a page in increments of 90 degrees. You will receive an AssertionError otherwise.\n",
    "\n",
    "6. What is the difference between a Run object and a Paragraph object?\n",
    "Ans: The structure of a document is represented by three different data types in python-Docx. At the highest level, a Document object represents the entire document. The Document object contains a list of Paragraph objects for the paragraphs in the document. (A new paragraph begins whenever the user presses ENTER or RETURN while typing in a Word document.) Each of these Paragraph objects contains a list of one or more Run objects.\n",
    "\n",
    "The text in a Word document is more than just a string. It has font, size, color, and other styling information associated with it. A style in Word is a collection of these attributes. A Run object is a contiguous run of text with the same style. A new Run object is needed whenever the text style changes.\n",
    "\n",
    "7. How do you obtain a list of Paragraph objects for a Document object that’s stored in a variable named doc?\n"
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    "# Example Program\n",
    "from docx import Document\n",
    "doc = Document(\"sample_file.docx\") # Path of the Docx file\n",
    "print(doc.paragraphs) # Prints the list of Paragraph objects for a Document\n",
    "for paragraph in doc.paragraphs:\n",
    "    print(paragraph.text) # Prints the text in the paragraph"
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    "8. What type of object has bold, underline, italic, strike, and outline variables?\n",
    "Ans: Run object has bold, underline, italic, strike, and outline variables. The text in a Word document is more than just a string. It has font, size, color, and other styling information associated with it.\n",
    "\n",
    "A style in Word is a collection of these attributes. A Run object is a contiguous run of text with the same style. A new Run object is needed whenever the text style changes.\n",
    "\n",
    "9. What is the difference between False, True, and None for the bold variable?"
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    "bold = True  # Style Set to Bold\n",
    "bold = False # Style Not Set to Bold\n",
    "bold = None # Style is Not Applicable"
   ]
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    "#10. How do you create a Document object for a new Word document?\n",
    "# Example Program\n",
    "from docx import Document\n",
    "document = Document()\n",
    "document.add_paragraph(\"iNeuron Full Stack DataScience Course\")\n",
    "document.save('mydocument.docx')"
   ]
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    "#11. How do you add a paragraph with the text 'Hello, there!' to a Document object stored in a variable named doc?\n",
    "# Example Program\n",
    "from docx import Document\n",
    "doc = Document()\n",
    "doc.add_paragraph('Hello, there!')\n",
    "doc.save('hello.docx')"
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    "12. What integers represent the levels of headings available in Word documents?\n",
    "Ans: The levels for a heading in a word document can be specified by using the level attribute inside the add_heading method. There are a total of 5 levels statring for 0 t0 4. where level 0 makes a headline with the horizontal line below the text, whereas the heading level 1 is the main heading. Similarly, the other headings are sub-heading with their's font-sizes in decreasing order."
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