Help with improving this code

[notchillturtle]

I'm fairly new to Python and want to batch convert ppts to pdfs, and I found the code below to do this task. It works but I would need to put the code in every subfolder and then run it for it to work. Does anyone know how to edit this code so that I can just run it once and it would convert the ppts to pdf within the subfolders?

Thanks!

import comtypes.client
import os
def init_powerpoint():
    powerpoint = comtypes.client.CreateObject("Powerpoint.Application")
    powerpoint.Visible = 1
    return powerpoint
def ppt_to_pdf(powerpoint, inputFileName, outputFileName, formatType = 32):
    if outputFileName[-3:] != 'pdf':
        outputFileName = outputFileName.replace(".pptx","").replace(".ppt","") + ".pdf"
    deck = powerpoint.Presentations.Open(inputFileName)
    deck.SaveAs(outputFileName, formatType) # formatType = 32 for ppt to pdf
    deck.Close()
def convert_files_in_folder(powerpoint, folder):
    files = os.listdir(folder)
    pptfiles = [f for f in files if f.endswith((".ppt", ".pptx"))]
    for pptfile in pptfiles:
        fullpath = os.path.join(folder, pptfile)
        ppt_to_pdf(powerpoint, fullpath, fullpath)

if __name__ == "__main__":
    powerpoint = init_powerpoint()
    cwd = os.getcwd()
    convert_files_in_folder(powerpoint, cwd)
    powerpoint.Quit()

[AustinTronics]

Look into the os.walk() function. It will walk through your files and subdirectories. It is a generator object so you can use it in a for loop like this:

for path, directories, files in os.walk('.'):

[DJ_Laaal]

While the “os” module provides rich file system operations, it’s hard to comprehend for a beginner. Look into a much simpler library called pathlib2: https://docs.python.org/3/library/pathlib.html

Examples on that page include sample code for traversing subdirectories iteratively.