Python-PPTX Library

Python-PPTX Library

  1. What Is the python-pptx Library in Python
  2. How to Install the python-pptx Library
  3. Create and Edit a PowerPoint File in Python

This tutorial will discuss the python-pptx library and implement it in Python.

What Is the python-pptx Library in Python

PowerPoint is widely recognized as the most popular software for creating and editing presentations. Python provides a library named python-pptx utilized to create or edit PowerPoint files.

These files have a pptx extension. The python-pptx library can function only on newer versions released after Microsoft Office 2003.

Inserting paragraphs, shapes, slides, and plenty more to a PowerPoint presentation can be done through this library.

How to Install the python-pptx Library

The python pptx library can be installed by simply utilizing the pip command. The following command must be written on the command prompt to install the python-pptx library.

pip install python-pptx

We should note that this package works on Python 2.6 and releases after that.

The first half of the article explains what the python-pptx library was. The other half of the article will demonstrate the various functions of the python-pptx library to create and edit a PowerPoint presentation.

Create and Edit a PowerPoint File in Python

Create a New PowerPoint File and Add Title/Subtitles

Firstly, we will import the pptx library to the Python code to ensure no errors while utilizing the pptx library functions. Then, we will create a presentation object and apply the necessary functions to it.

The following code shows how to create a presentation object and add a title and subtitles.

from pptx import Presentation
X = Presentation() # Presentation object created
slide1_layout = X.slide_layouts[0] #Slide layout process
slide = X.slides.add_slide(slide1_layout)
#Then, we create title
slide.shapes.title.text = " PPT TITLE (PYTHON) "
X.save("delft.pptx")  # File saved
print("done")

The above code provides the following output.

python pptx

Convert .pptx File to a .txt File

Another essential step to understanding Python’s pptx library is converting a presentation with the (.pptx) extension to a text file with the (.txt) extension.

The following code converts a file with the (.pptx) to the (.txt) extension.

from pptx import Presentation
X = Presentation("abc.pptx") # Presentation object created
# Then file is opened in write mode
ftw_data = open("fte_ppt.txt", "w")
# write text from powerpoint
# file into .txt file
for slide in X.slides:
    for shape in slide.shapes:
        if not shape.has_text_frame:
            continue
        for paragraph in shape.text_frame.paragraphs:
            for run in paragraph.runs:
                ftw_data.write(run.text)
ftw_data.close() # The file is closed
print("Done")

Insert an Image Into a PowerPoint Presentation

Another one of the essentials of editing a PowerPoint presentation through Python is to learn how to add an image to a PowerPoint presentation.

The following code inserts an image into a PowerPoint presentation.

from pptx import Presentation
from pptx.util import Inches

img_path = 'vk.png' #specify image path

X = Presentation() # presentation object created

bs_layout = X.slide_layouts[6] #select blank slide layout

slide = X.slides.add_slide(bs_layout)

left = top = Inches(1) # add margins

pic = slide.shapes.add_picture(img_path,
                               left, top) #add images
left = Inches(1)
height = Inches(1)

pic = slide.shapes.add_picture(img_path, left,
                               top, height = height)
X.save('test_4.pptx')  # file is saved
print("Done")

The above code provides the following output.

vk

Here, we have covered some essentials of creating and editing PowerPoint presentations in Python.

Additionally, we can utilize several functions in the pptx library to customize more things like adding charts, tables, shapes, etc.