REPL: Enable tab completion for `from x import <TAB>` on Windows

[ByteFlowing1337]

Feature or enhancement

Proposal:

When a user types from os import and presses <TAB> on Linux builds python, the REPL suggests all available sub-modules and attributes. On Windows, it prints nothing, which is quite inconvenient.

Has this already been discussed elsewhere?

This is a minor feature, which does not need previous discussion elsewhere

Links to previous discussion of this feature:

No response

[StanFromIreland]

What version did you test with? I don't have access to a Windows machine to check, but as far as I can tell it is tested, and as such should work on all platforms:

cpython/Lib/test/test_pyrepl/test_pyrepl.py

Line 1141 in 7686abe

class TestPyReplModuleCompleter(TestCase):

[ByteFlowing1337]

What version did you test with? I don't have access to a Windows machine to check, but as far as I can tell it is tested, and as such should work on all platforms:

cpython/Lib/test/test_pyrepl/test_pyrepl.py

Line 1141 in 7686abe

class TestPyReplModuleCompleter(TestCase):

It's inaccurate of my original description, sorry for that.

It's a different behavior of tab completion on Windows and Linux.

On Windows, from x import <TAB> only displays the .py filenames within x if x is a folder. If x is a single .py file, it will display nothing.

However, on Linux, it displays all the non-internal variables(not starting with _) in a single .py file.

This might be a result of the different search methods used by each OS.

Tested using Python 3.14.4 on Windows and Python 3.15.0a8 on Linux (WSL2).

On Windows:

On Linux(WSL2):

On Windows(<TAB> displays nothing here)

On Linux(WSL2):

[StanFromIreland]

Tested using Python 3.14.4 on Windows and Python 3.15.0a8 on Linux (WSL2).

You are comparing two different Python versions, the feature you are missing (attribute completion) is only available in 3.15. It was added in b07becb.