[Python] Why does doc.Close() stop further code from running?

Trying to make a converter from a docx to pdf in python, expecting a response on the front end when it finishes but doc.Close() either exits or runs indefinitely. Any idea how to fix this?

I currently have this, no exceptions have been raised, program hasn't crashed, no timeout, nor a traceback. PDF gets made successfully but print and finally statement does not happen

import comtypes.client
import os

doc_path = "absPath\to\document.docx"
pdf_path = "absPath\to\save\location.pdf"

try:
# Initialize Word application using COM interface
word = comtypes.client.CreateObject("Word.Application")
word.Visible = False
word.DisplayAlerts = 0 # 0 suppresses all alerts, including Save As dialogs
# Save the document as PDF
doc = word.Documents.Open(doc_path)
doc.SaveAs(pdf_path, FileFormat=17) # FileFormat=17 is for PDF
doc.Close() # Close the document

print(f"Document saved as PDF: {pdf_path}")

except Exception as e:
print(f"An error occurred during conversion: {e}")

finally:
# Quit Word application
word.Quit()
return pdf_path

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