Neither is 0. Python’s csv library does not handle any problem, it applies the separators / quoting / escapes it was given and that’s that. It gives the developer the opportunity to handle things, but if the developer isn’t aware nothing is handled.
If you're just going to quote me out of context and not bother responding to the actual substance of my comment (which was a high level but concrete comparison of two different CSV parsers, demonstrating an important qualitative difference with respect to csv parsers solving problems), then please, don't bother responding.
Neither is 0. Python’s csv library does not handle any problem, it applies the separators / quoting / escapes it was given and that’s that. It gives the developer the opportunity to handle things, but if the developer isn’t aware nothing is handled.