python-pptx library: Slide Masters of different Powerpoint templates are of different order (index)

Question

I am trying to use an existing template design of powerpoint using python-pptx library. My problem is that I have two or more different templates ready and when I viewed their slide master, the "title and content layout" of each template are not on the same order. So, the index that I will use will be 1 if I used the first templates and 2 for the second templates.

Using the python-pptx library:

Sample Python Code 1 for fist templates

bullet_slide_layout = self.prs.slide_layouts[1]

Sample Python Code 2 for second templates

bullet_slide_layout = self.prs.slide_layouts[2]

Both of them works, but I do not want to change the indices every now and then whenever a new template design is added.

Please help. Also, If I am not clear with the problem I presented, please tell me. Thank you

scanny scanny · Accepted Answer · 2017-02-15T19:47:29

If you want to retrieve a slide layout by something other than its position in the layout sequence, you will have to write something of your own.

There are a few approaches:

Use the slide layout name
Use the slide layout id
Characterize the slide by the number and type of placeholders it contains and perhaps their size and position.

So as an example, something simple would be:

def get_layout_by_name(prs, layout_name):
    for layout in prs.slide_layouts:
        if layout.name == layout_name:
            return layout
    return None

python-pptx library: Slide Masters of different Powerpoint templates are of different order (index)

1 Answers