Python-pptx: copy slide

Question

How can I copy slide?

I created a template slide and I need to copy it and edit shapes of each copy separately.

Or how I can add my template slide to present

Answer 1

Since I also found another usecase for the code shared by @d_bergeron, I just wanted to share it here. In my case, I wanted to copy a slide from another presentation into the one I generated with python-pptx:

As argument I pass in the Presentation() object I created using python-pptx (prs = Presenation()).

from pptx import Presentation
import copy

def copy_slide_from_external_prs(prs):

    # copy from external presentation all objects into the existing presentation
    external_pres = Presentation("PATH/TO/PRES/TO/IMPORT/from.pptx")

    # specify the slide you want to copy the contents from
    ext_slide = external_pres.slides[0]

    # Define the layout you want to use from your generated pptx
    SLD_LAYOUT = 5
    slide_layout = prs.slide_layouts[SLD_LAYOUT]

    # create now slide, to copy contents to 
    curr_slide = prs.slides.add_slide(slide_layout)

    # now copy contents from external slide, but do not copy slide properties
    # e.g. slide layouts, etc., because these would produce errors, as diplicate
    # entries might be generated

    for shp in ext_slide.shapes:
        el = shp.element
        newel = copy.deepcopy(el)
        curr_slide.shapes._spTree.insert_element_before(newel, 'p:extLst')

    return prs

I am mainly posting it here, since I was looking for a way to copy an external slide into my presentation and ended up in this thread.