I am new with python-pptx. But I am familiar with its basic working. I have searched a lot but I could not find a way to change a particular text by another text in all slides. That text may be in any text_frame of a slide. like all slides in a ppt have 'java' keyword, I want to change it by 'python' using python pptx in slides.
for slide in ppt.slides:
if slide.has_text_frame:
#do something with text frames
Something like this should help, you'll need to iterate the shape objects in each slide.shapes and check for a TextFrame and the existence of your keyword:
def replace_text_by_keyword(ppt, keyword, replacement):
for slide in ppt.slides:
for shp in slide.shapes:
if shp.has_text_frame and keyword in shp.text:
thisText = shp.text.replace(keyword, replacement)
shp.text = thisText
This example is just a simple str.replace of course if you have more complicated replacement/text-updating algorithm, you can modify as needed.