05.09.17 11:38, INADA Naoki пише:
## Cons
* All Python 3.7 implementations should provide _collections.OrderedDict
PyPy has it already. But I don't know about micropython.
Current C implementation of OrderedDict is not safe regarding using
mutating dict methods (or dict C API) like dict.__setitem__ or
PyDict_SetItem. Using them can cause hangs or segfaults. See issue24726
and issue25410. I hope your implementation will solve these issues, but
there may be others. While the C implementation still is not enough
mature, we should allow users that encountered one of such issues to use
pure Python implementation which is free from hangs and segfaults.
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