[issue13988] Expose the C implementation of ElementTree by default when importing ElementTree

[Eli Bendersky]

Eli Bendersky <eliben at gmail.com> added the comment:

Hmm, that may be PEP 399:

  If an acceleration module is provided it is to be named the same as the module it is accelerating with an underscore attached as a prefix, e.g., _warnings for warnings. The common pattern to access the accelerated code from the pure Python implementation is to import it with an import *, e.g., from _warnings import *. This is typically done at the end of the module to allow it to overwrite specific Python objects with their accelerated equivalents. 

However, it's hardly a rule, just describing a "common pattern". I wonder why this approach is preferable to the one I proposed (explicit facade module)?

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