fix: replace top-level package proxy imports with direct module imports

[mayankansys]

Context

Several modules imported config via from ansys.fluent.core import config or import ansys.fluent.core as pyfluent instead of importing directly from module_config.py. This forced __init__.py to fully execute before those modules could load, creating artificial circular-import constraints and requiring a fragile manual # isort: off ordering guard.

Change Summary

Replaced all indirect config imports with:
from ansys.fluent.core.module_config import config

Rationale

Direct imports bypass __init__.py entirely, eliminating the circular dependency
at its root. No logic was changed — only import paths.

Impact

28 files updated. Import order in __init__.py is now freely managed by isort.
No functional behaviour is affected.

[Copilot]

Pull request overview

This PR replaces indirect config imports (via ansys.fluent.core.__init__ or pyfluent.config) with direct imports from ansys.fluent.core.module_config across the source code. This eliminates circular-import constraints that required fragile # isort: off guards in __init__.py by ensuring modules can access config without triggering full package initialization.

Changes:

• Replaced all from ansys.fluent.core import config and pyfluent.config references in 27 source files with from ansys.fluent.core.module_config import config
• Where pyfluent was only used for config access, removed the import ansys.fluent.core as pyfluent import; where it also provided other symbols (e.g., FluentVersion, launch_fluent, utils.load_module), those were replaced with direct imports from their defining modules
• Added a changelog entry for the fix

Reviewed changes

Copilot reviewed 28 out of 28 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/ansys/fluent/core/utils/networking.py	Replace function-level config import with direct module import
src/ansys/fluent/core/utils/fluent_version.py	Add module-level direct config import; update current_release/current_dev
src/ansys/fluent/core/utils/data_transfer.py	Replace pyfluent import with direct config import
src/ansys/fluent/core/system_coupling.py	Replace pyfluent import with direct config import
src/ansys/fluent/core/streaming_services/datamodel_streaming.py	Replace pyfluent import with direct config import
src/ansys/fluent/core/streaming_services/datamodel_event_streaming.py	Replace function-level config import
src/ansys/fluent/core/solver/flobject.py	Replace function-level config/utils imports with direct imports
src/ansys/fluent/core/session_solver.py	Add direct config import; update pyfluent.config references
src/ansys/fluent/core/session_shared.py	Replace pyfluent import with direct config and load_module imports
src/ansys/fluent/core/session_pure_meshing.py	Replace pyfluent import with direct config import
src/ansys/fluent/core/services/interceptors.py	Replace function-level config imports
src/ansys/fluent/core/services/health_check.py	Replace pyfluent import with direct config import
src/ansys/fluent/core/services/datamodel_se.py	Replace pyfluent import with direct config import
src/ansys/fluent/core/services/api_upgrade.py	Replace function-level config import
src/ansys/fluent/core/search.py	Consolidate multiple function-level config imports into one module-level import
src/ansys/fluent/core/logger.py	Replace top-level config import path
src/ansys/fluent/core/launcher/slurm_launcher.py	Move config import to module level from direct module
src/ansys/fluent/core/launcher/server_info.py	Replace function-level config imports
src/ansys/fluent/core/launcher/launcher_utils.py	Replace function-level config import
src/ansys/fluent/core/launcher/launcher.py	Replace pyfluent import with direct config import
src/ansys/fluent/core/launcher/launch_options.py	Replace function-level config import
src/ansys/fluent/core/launcher/fluent_container.py	Replace pyfluent import with direct config import
src/ansys/fluent/core/fluent_connection.py	Replace pyfluent import with direct config and FluentVersion imports
src/ansys/fluent/core/docker/docker_compose.py	Replace function-level config import
src/ansys/fluent/core/data_model_cache.py	Replace function-level config import
src/ansys/fluent/core/codegen/builtin_settingsgen.py	Replace config and FluentVersion imports with direct module imports
src/ansys/fluent/core/codegen/allapigen.py	Replace top-level config import path
doc/changelog.d/4972.fixed.md	Changelog entry for the fix

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[Copilot]

Pull request overview

Copilot reviewed 28 out of 28 changed files in this pull request and generated no new comments.

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