Python PPTX library issue - Replacing image in slides ('SlidePart' object has no attribute 'related_parts')

Question

I use the PPTX library to automate the creation of a deck of slides on a weekly basis. It was working really well until the last update of the library. As you can see below, I keep getting the following when updating the "image part" of the slides:

AttributeError: 'SlidePart' object has no attribute 'related_parts'

Here is my function for the image replacement:

def replace_img_slide(prs, slide_nbr, shape_nbr, img_path):

slide = prs.slides[slide_nbr]
img = slide.shapes[shape_nbr]
try:
    imgPic = img._pic
except AttributeError:
    raise AttributeError(
        f"Error for slide: {slide_nbr}, shape: {shape_nbr}, path: {img_path}")
imgRID = imgPic.xpath('./p:blipFill/a:blip/@r:embed')[0]
imgPart = slide.part.related_parts[imgRID]

with open(img_path, 'rb') as f:
    rImgBlob = f.read()

# replace
imgPart._blob = rImgBlob

return prs

I found some related subject and I understood that the "related_parts" is now obsolete in the new version of the library but I did not find how to solve it. Do you think you can help me with that please ?

Many thanks in advance for your help !

scanny · Accepted Answer · 2021-11-30 01:20:28Z

3

Just use part.related_part(imgRID) where you used to use part.related_parts[imgRID].

The latest version exposes that method (internally) rather than expose a dict-like object just to do that one job.

answered Nov 30, 2021 at 1:20

scanny

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2 Comments

Reda Over a year ago

Hi Scanny, it works, thanks a lot for that ! Also, I saw some of your answers in others topics related to similar issues, it was really helpful, so thanks again !

scanny Over a year ago

Welcome to StackOverflow @Reda. Be sure to accept an answer that resolves your question. That's how you say Thank You! on SO :) Just click on the checkmark to the left of the answer. That helps others locate an answer that worked and also gives you reputation points.

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