Processing text files line by line is trivial in awk. Maybe it's easy in Python too but at least in awk you don't have to worry about the 2 vs 3 silliness.

Plus I think semantic indentation is not sane language design.

Plus you can pipe it to another command with ease.

Awk automatically operates on every line of a text file, so you can easily use it as part of a pipeline in Linux. I'll usually use grep, cut, sort, and awk all together with one line of code and no need to open an editor. Python takes a lot more code to do these basic things. However, Python is much better once the complexity grows past a certain point.

depends upon the usecase, for relatively simple column filtering, substitution, etc, awk script would be briefer than python equivalent and most likely be faster as well

if it becomes lengthy (and again depends on features required), then Python is likely to have inbuilt/3rd-party libraries to make it easier to write and maintain

if it is a question of constructing command line one-liners and using it as a part of other cli tools, then awk wins easily

for example:

    awk -F'\\W+' -v OFS=, '{print $NF, $2}' input.txt

prints last column and second column, where non-word characters form the field separator and comma is used as output field separator