Antony Lee added the comment: Yes, but this will make the context-manager approach (with NamedTemporaryFile(closed=True): <do stuff>) unusable, because the underlying file object will be closed before calling __enter__. I think the only reasonable way to implement this would be to have __enter__ return the file name (as for TemporaryDirectory), instead of the file object (which is reasonable because if I pass closed=True, it probably means all I care is that a file exists here for some other process to use!). But, with the function approach, I cannot override __enter__.
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