My point was not that this was absolutely hard, but rather that's way too hard for the totally mundane thing I was trying to accomplish---namely getting public data from a US-funded statistical agency into a form suitable for further statistical analysis (which is the whole reason they make this data public).
Also, I don't see how it's ironic that I used Python---it seems irrelevant. Whitespace in Python has a well-defined, commonly understood purpose; using tabs or spaces to indicate hierarchal data relationships is not at all standard, presumably because it creates messy dependencies across rows of data.