indentation tips

[Pedroski55]

I am not a programmer, that is easy to see. I have a lot of trouble with the indentation. I write little routines using the idle3 environment. I just got this working, to put photos in an excel file.

Idle3 is set to 4 spaces = 1 tab, but when I press tab, I often seem to get more than 4 spaces. This below works for me on my computer, in the idle3 shell and in a terminal. If I change it at all, my little routine does not run, or does not do what I want.

If you have a link to some advice on indentation, I would like to read it! Thanks!

for sheet in sheets:
	activeDirectory = pathToPhotos + sheet + '/'
	print('the active photo directory is ' + activeDirectory)
	for filename in os.listdir(activeDirectory):
			if not (filename.endswith('.jpg')):
				continue
			for rowNum in range(beginRow, wb[sheet].max_row + 1):
				getName = filename.split('.')
				if (getName[0] == wb[sheet].cell(row=rowNum, column=col).value):
					print('found the name! Name is: %s ' % (getName[0]))
					print('Putting pic in row ' + str(rowNum))
					img = Image(activeDirectory + filename)
					wb[sheet].add_image(img, 'A' + str(rowNum))