flake8 (#1323)

* flake8: Ignore frequent violations, correct infrequent ones

* Ignore some rules in test

* Reorder test ignores

* Lint test + main

* EOF indent

* Include all E71,E72 errors

* Test the failing case in CI

* Revert "Test the failing case in CI"

This reverts commit 110add0a70.

* Push to test!
This reverts commit f317532779.

* ok back to passing
This reverts commit ba5052685f.

* Prove that CI fails when formatting is incorrect.

* Fix formatting

* Remove duplicitous E117 rule

* Use flake8 config for precommit

---------

Co-authored-by: waifairer <waifairer@gmail.com>

tinygrad/tensor.py

@@ -170,7 +170,6 @@ class Tensor:
   def eye(dim:int, **kwargs):
     return Tensor([1], **kwargs).pad(((0,dim),)).reshape(1, dim+1).expand(dim, dim+1).reshape(dim*(dim+1)).shrink(((0,dim*dim),)).reshape(dim, dim)
 
-
   # ***** rng hlops *****
 
   @staticmethod
@@ -282,7 +281,7 @@ class Tensor:
     valid_slices = list(filterfalse(lambda x: x is None, orig_slices))
     valid_slices = [v if isinstance(v, slice) else slice(y := normalize_int(v, i, dim_sz), y+1) for i, (v, dim_sz) in enumerate(zip(valid_slices, self.shape))]
     start, stop, strides = zip(*y) if (y := [s.indices(dim_sz) for s, dim_sz in zip(valid_slices, self.shape)]) else ((), (), ())
-    new_slice = tuple((s, e)  if st > 0 else (e+1, s+1) for s, e, st in zip(start, stop, strides))
+    new_slice = tuple((s, e) if st > 0 else (e+1, s+1) for s, e, st in zip(start, stop, strides))
     new_shape = tuple(e - s for s, e in new_slice)
     # Shrink
     sliced_tensor = self.shrink(new_slice)