chore(sdk): ignore unused import errors in __init__.py files generally (

wandb#5045)

* Have ruff and flake8 only ignore a subset of errors in __init__.py files (rather than ignore the files completely)

.flake8-base

@@ -17,7 +17,6 @@ exclude =
     ./tests/pytest_tests/unit_tests_old/
     ./tests/functional_tests/t0_main/metaflow/
     ./tests/functional_tests/t0_main/fastai/t1_v1.py
-    ./wandb/__init__.py
     ./wandb/wandb_torch.py
     ./wandb/bin
     ./wandb/data/
@@ -39,6 +38,8 @@ exclude =
     */wandb/offline-run-*/files/code/
 
 per-file-ignores =
-   wandb/cli/cli.py:C901,I202
-   wandb/wandb_controller.py:N803,N806
-   wandb/filesync/step_checksum.py:B023
+    **/__init__.py:E402,F401
+    wandb/__init__.py:E402,F401,I001
+    wandb/cli/cli.py:C901,I202
+    wandb/filesync/step_checksum.py:B023
+    wandb/wandb_controller.py:N803,N806

pyproject.toml

@@ -59,7 +59,6 @@ exclude = [
     "tests/functional_tests/t0_main/metaflow",
     "tests/pytest_tests/assets/fixtures/train.py",
     "tests/pytest_tests/unit_tests_old",
-    "wandb/__init__.py",
     "wandb/bin",
     "wandb/data",
     "wandb/env.py",
@@ -86,9 +85,11 @@ target-version = "py37"
 split-on-trailing-comma = false
 
 [tool.ruff.per-file-ignores]
+"**/__init__.py" = ["E402", "F401"]
+"wandb/__init__.py" = ["I001"]
 "wandb/cli/cli.py" = ["C901"]
-"wandb/wandb_controller.py" = ["N803", "N806"]
 "wandb/filesync/step_checksum.py" = ["B023"]
+"wandb/wandb_controller.py" = ["N803", "N806"]
 
 [tool.ruff.pydocstyle]
 convention = "google"