New REPL exposes its internal imports/definitions to top-level environment

[chgnrdv]

Bug report

Bug description:

Top-level scope now contains globals of _pyrepl.__main__:

Python 3.14.0a0 (heads/main:a895756aec, May 10 2024, 16:56:55) [GCC 10.2.1 20210110] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> dir()
['CAN_USE_PYREPL', '__annotations__', '__builtins__', '__cached__', '__doc__', '__file__',
'__loader__', '__name__', '__package__', '__spec__', 'interactive_console', 'os', 'sys']

CPython versions tested on:

3.13

Operating systems tested on:

Linux

[chgnrdv]

Refs #111201

I can submit a PR when decision will be made about how to fix it. Possible solution is to move __main__.py contents to __init__.py or special _pyrepl submodule and import interactive_console to __main__.