Issue observed in experimental aggregator based workflow

[ishant162]

Describe the bug
Running Experimental aggregator based workflow workspace 101_torch_cnn_mnist leads to an unexpected ImportError Exception.

To Reproduce
Steps to reproduce the behavior:

1. Create workspace using fx workspace create --prefix my_workspace --template 101_torch_cnn_mnist
2. Complete workspace creation using fx commands by following steps described in the last cell of this tutorial
3. Run aggregator using fx aggregator start
4. See error ImportError: cannot import name 'Aggregator' from partially initialized module 'openfl.experimental.component.aggregator'

Expected behavior
Workspace should run successfully without any error.

Desktop (please complete the following information):

• OS: Ubuntu (WSL)
• OS Version: 22.04.3 LTS
• Python: 3.8.19

Error logs
Import_error_logs.txt

Additional context
The issue appears to have arisen due to the code changes introduced in PR #980
@MasterSkepticista Can you please look into this?

[MasterSkepticista]

Hi @ishant162, this is due to a circular import error which needs fixes as and when they are encountered. This is done as a wider refactor effort on using absolute instead of relative imports.

Refer to the discussion in #980 on refactor of imports.

Can you raise a PR with the following change? (ensure it passes your test)

# openfl/experimental/component/aggregator/__init__.py
# Change
from openfl.experimental.component.aggregator import Aggregator

# To
from openfl.experimental.component.aggregator.aggregator import Aggregator

[ishant162]

@MasterSkepticista, Thank you for the information. I will proceed with raising a PR to incorporate the suggested changes.

[ishant162]

Fixed in #974