Hi All, This question comes apropos this bugfix #5495 <https://github.com/numpy/numpy/pull/5495> that ensures that the default options get passed down the call chain. The current defaults are kwargs.setdefault("case_sensitive", "lower") kwargs.setdefault("names", True) kwargs.setdefault("delimiter", ",") kwargs.setdefault("dtype", None) The ones in question are for "names" and "case_sensitive", that, due to the bug, were defaulting to 'True' and None respectively. I think those defaults should be kept rather than the values currently specified in the recfromcsv definition. However, I don't use these tools, so would like some feedback from those who do. Chuck