Raise NotImplementedError("only algorithm code 1 and 2 are supported")

Question

I have created a simple code to decrypt an encrypted PDF file and create a new decrypted PDF file. Python version 3.10.1 Find the code below

from PyPDF2 import PdfFileReader, PdfFileWriter

def decrypt(file, password):
    pdf = PdfFileReader(file)
    writer = PdfFileWriter() #Creating empty PDF file
    pdf.decrypt(password)

    for i in range (pdf.getNumPages()):
        page = pdf.getPage(i)
        writer.addPage(page)

    with open('Decrypted_' + file, 'wb') as output_file:
        writer.write(output_file)

#give file name with .pdf extension
decrypt('PDFFile0112.pdf', 'abcdefg1234')

I get the below error

Traceback (most recent call last):
  File "E:\Code\decrypt.py", line 16, in <module>
    decrypt('PDFFile0112.pdf', 'abcdefg1234')
  File "E:\Code\decrypt.py", line 6, in decrypt
    pdf.decrypt(password)
  File "C:\Users\llp\AppData\Local\Programs\Python\Python310\lib\site-packages\PyPDF2\pdf.py", line 1987, in decrypt
    return self._decrypt(password)
  File "C:\Users\llp\AppData\Local\Programs\Python\Python310\lib\site-packages\PyPDF2\pdf.py", line 1996, in _decrypt
    raise NotImplementedError("only algorithm code 1 and 2 are supported")
NotImplementedError: only algorithm code 1 and 2 are supported

The strange thing is that the same code has worked before many times but it is not working now. What needs to be fixed in the code?

Both the code and the encrypted PDF file are in E://Code