Add ruff, remove black, isort, flake8, pylint (#3092)

* black, isort, flake8 -> ruff

* remove unused

* add back needed import

* fix

tests/e2e/kernels/test_geglu.py

@@ -85,6 +85,6 @@ def test_geglu_inplace_preservation():
 
     assert not torch.equal(gate, gate_copy), "Gate should be modified in-place"
     assert not torch.equal(up, up_copy), "Up should be modified in-place"
-    assert not torch.equal(
-        grad_output, grad_copy
-    ), "Grad output should be modified in-place"
+    assert not torch.equal(grad_output, grad_copy), (
+        "Grad output should be modified in-place"
+    )

tests/e2e/kernels/test_lora.py

@@ -1,7 +1,5 @@
 """Tests for LoRA custom autograd."""
 
-# pylint: disable=invalid-name,redefined-outer-name
-
 import pytest
 import torch
 from bitsandbytes.functional import QuantState
@@ -333,7 +331,7 @@ def test_lora_qkv(sample_tensors):
     X.requires_grad = True
 
     # Test without LoRA adapters
-    # pylint: disable=duplicate-code
+
     Q1, K1, V1 = LoRA_QKV.apply(
         X,
         q_weight,

tests/e2e/kernels/test_quantize.py

@@ -1,7 +1,5 @@
 """Tests for quantization utility functions."""
 
-# pylint: disable=invalid-name
-
 import torch
 from bitsandbytes.functional import QuantState
 

tests/e2e/kernels/test_swiglu.py

@@ -1,7 +1,5 @@
 """Tests for SwiGLU activation function Triton kernels."""
 
-# pylint: disable=duplicate-code
-
 import torch
 import torch.nn.functional as F
 
@@ -74,6 +72,6 @@ def test_swiglu_inplace_preservation():
 
     assert not torch.equal(gate, gate_copy), "Gate should be modified in-place"
     assert not torch.equal(up, up_copy), "Up should be modified in-place"
-    assert not torch.equal(
-        grad_output, grad_copy
-    ), "Grad output should be modified in-place"
+    assert not torch.equal(grad_output, grad_copy), (
+        "Grad output should be modified in-place"
+    )