[issue1402289] Allow mappings as globals (was: Fix dictionary subclass ...)

[Inada Naoki]

Inada Naoki <songofacandy at gmail.com> added the comment:

13 years past from this proposed.  Is this still good feature for Python?

Personally, I dislike adding more dynamic flexibility to Python name space.

Python is very dynamic language, and it made difficult to make Python faster.
For example, PHP is not so dynamic as Python, and it is one of reasons why PHP VM is now much faster than Python VM.  They can easily do more optimization like function inlining statically.

I'm interested in optimizing Python.  But I'm not interested in adding more "slow path" we need to maintain forever.

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<https://bugs.python.org/issue1402289>
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