prs = Presentation(eachfile)
print(eachfile)
print("----------------------")
for slide in prs.slides:
#slide._element.get('show') is None # not hidden
#slide._element.get('show') == '0' # hidden
for shape in slide.shapes:
if hasattr(shape, "text"):
print(shape.text)
https://stackoverflow.com/questions/39418620/extracting-text-from-multiple-powerpoint-files-using-python https://github.com/scanny/python-pptx/issues/319