Password Protect PDF Using Python

 from PyPDF2 import PdfFileWriter, PdfFileReader
 lmport getpass
 pdfwriter=PdfFileWriter()
 pdf=PdfFileReader("1.pdf")
 for page_num in range(pdf.numPages):
 pdfwriter.addPage(pdf.getPage(page_num))
 passw=getpass.getpass(prompt='Enter Password: ')
 pdfwriter.encrypt(passw)
 with open('ho.pdf','wb') as f:
 pdfwriter.write(f)