csv_generator | simple python tool that helps generate csv files | CSV Processing library

I am building a model with multiple inputs as shown in pyimagesearch, however I can't load all images into RAM and I am trying to create a generator that uses flow_from_directory and get from a CSV file all the extra attributes for each image being processed.

Question: How do I get the attributes from the CSV to correspond with the images in each batch from the image generator?

I'm working on text analysis in Python, I'm looking at a range of Irish language texts dating from the 6th century to the 14th, which means I have a whole range of orthographic variations to account for when sorting a word list.

I want to sort a list which takes into account different grammatical forms of characters (e.g. fada, séimhiú, and úru) from different periods by their core words, so my custom alphabet will look like this:

"a, á, b, ḃ, bh, mb, c, ċ, ch, gc, d, ḋ, dh, nd, e, é, f, ḟ, fh, bhf, g, ġ, gh, ng, h, i, í, l, m, ṁ, mh, n, o, ó, p, ṗ, ph, bp, r, rh, s, ṡ, sh, t, ṫ, th, ts, dt, u, ú, j, k, q, v, w, x, y, z"

I can probably handle the fada (accented letters) with Unicode encoding, e.g u'á', but I'm struggling to find a way to work with the old style úru (diacritic dot)?

Does anyone have experience with this sort of mix of characters? Is there a common way that people have developed to work with these characters?

Currently when ever I try to use a diacritic dot charcter with u'ḃ' I get the following error: