[Python-Dev] another Py_TPFLAGS_HEAPTYPE question (original) (raw)

Greg Ewing greg.ewing at canterbury.ac.nz
Mon Aug 17 03:39:36 CEST 2009

Benjamin Peterson wrote:

Why do you need to set PyTPFLAGSHEAPTYPE on your C type?

I think he doesn't want to set Py_TPFLAGS_HEAPTYPE, but does want to create the type dynamically.

But I suspect this is actually FUD, and that letting Py_TPFLAGS_HEAPTYPE be set wouldn't lead to anything disastrous happening.

Note that by not giving instances a dict, they will be prevented from having arbitrary attributes set on them, which is the most noticeable distinction between built-in and user-defined types.

-- Greg

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