Upgrade to ruff 0.2.0 and fix RUF017

.pre-commit-config.yaml

@@ -20,12 +20,11 @@ repos:
           )$
       - id: check-merge-conflict
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.1.14
+    rev: v0.2.0
     hooks:
       - id: ruff
-        args: ["--fix", "--show-source"]
+        args: ["--fix", "--output-format=full"]
       - id: ruff-format
-        args: ["--line-length=88"]
   - repo: https://github.com/pre-commit/mirrors-mypy
     rev: v1.8.0
     hooks:

pyproject.toml

@@ -121,23 +121,19 @@ tag_prefix = "rel-"
 addopts = "--durations=50"
 testpaths = "tests/"
 
-[tool.pylint]
-max-line-length = 88
-
-[tool.pylint.messages_control]
-disable = ["C0330", "C0326"]
-
-
 [tool.ruff]
+line-length = 88
+exclude = ["doc/", "pytensor/_version.py", "bin/pytensor_cache.py"]
+
+[tool.ruff.lint]
 select = ["C", "E", "F", "I", "UP", "W", "RUF"]
 ignore = ["C408", "C901", "E501", "E741", "RUF012"]
-exclude = ["doc/", "pytensor/_version.py", "bin/pytensor_cache.py"]
 
 
-[tool.ruff.isort]
+[tool.ruff.lint.isort]
 lines-after-imports = 2
 
-[tool.ruff.per-file-ignores]
+[tool.ruff.lint.per-file-ignores]
 # TODO: Get rid of these:
 "**/__init__.py" = ["F401", "E402", "F403"]
 "pytensor/tensor/linalg.py" = ["F403"]

pytensor/graph/destroyhandler.py

@@ -233,10 +233,11 @@ def fast_inplace_check(fgraph, inputs):
 
     """
     Supervisor = pytensor.compile.function.types.Supervisor
-    protected_inputs = [
-        f.protected for f in fgraph._features if isinstance(f, Supervisor)
-    ]
-    protected_inputs = sum(protected_inputs, [])  # flatten the list
+    protected_inputs = list(
+        itertools.chain.from_iterable(
+            f.protected for f in fgraph._features if isinstance(f, Supervisor)
+        )
+    )
     protected_inputs.extend(fgraph.outputs)
 
     inputs = [

pytensor/scalar/basic.py

@@ -4096,9 +4096,10 @@ class ScalarInnerGraphOp(ScalarOp, HasInnerGraph):
         return tuple(rval)
 
     def c_header_dirs(self, **kwargs):
-        rval = sum(
-            (subnode.op.c_header_dirs(**kwargs) for subnode in self.fgraph.toposort()),
-            [],
+        rval = list(
+            chain.from_iterable(
+                subnode.op.c_header_dirs(**kwargs) for subnode in self.fgraph.toposort()
+            )
         )
         return rval
 

pytensor/scan/rewriting.py

@@ -1067,7 +1067,9 @@ class ScanInplaceOptimizer(GraphRewriter):
                     if client.op.destroy_map:
                         # This flattens the content of destroy_map.values()
                         # which is a list of lists
-                        inplace_inp_indices = sum(client.op.destroy_map.values(), [])
+                        inplace_inp_indices = chain.from_iterable(
+                            client.op.destroy_map.values()
+                        )
 
                         inplace_inps = [client.inputs[i] for i in inplace_inp_indices]
                         if original_node.inputs[inp_idx] in inplace_inps:
@@ -1860,8 +1862,8 @@ class ScanMerge(GraphRewriter):
         # Clone the inner graph of each node independently
         for idx, nd in enumerate(nodes):
             # concatenate all inner_ins and inner_outs of nd
-            flat_inner_ins = sum(inner_ins[idx], [])
-            flat_inner_outs = sum(inner_outs[idx], [])
+            flat_inner_ins = list(chain.from_iterable(inner_ins[idx]))
+            flat_inner_outs = list(chain.from_iterable(inner_outs[idx]))
             # clone
             flat_inner_ins, flat_inner_outs = reconstruct_graph(
                 flat_inner_ins, flat_inner_outs

pytensor/scan/utils.py

@@ -765,8 +765,8 @@ class ScanArgs:
     def inner_inputs(self):
         return (
             self.inner_in_seqs
-            + sum(self.inner_in_mit_mot, [])
-            + sum(self.inner_in_mit_sot, [])
+            + list(chain.from_iterable(self.inner_in_mit_mot))
+            + list(chain.from_iterable(self.inner_in_mit_sot))
             + self.inner_in_sit_sot
             + self.inner_in_shared
             + self.inner_in_non_seqs
@@ -788,7 +788,7 @@ class ScanArgs:
     @property
     def inner_outputs(self):
         return (
-            sum(self.inner_out_mit_mot, [])
+            list(chain.from_iterable(self.inner_out_mit_mot))
             + self.inner_out_mit_sot
             + self.inner_out_sit_sot
             + self.inner_out_nit_sot

pytensor/tensor/rewriting/elemwise.py

+import itertools
 import sys
 from collections import defaultdict, deque
 from collections.abc import Generator
@@ -144,12 +145,12 @@ class InplaceElemwiseOptimizer(GraphRewriter):
         else:
             update_outs = []
 
-        protected_inputs = [
-            f.protected
-            for f in fgraph._features
-            if isinstance(f, pytensor.compile.function.types.Supervisor)
-        ]
-        protected_inputs = sum(protected_inputs, [])  # flatten the list
+        Supervisor = pytensor.compile.function.types.Supervisor
+        protected_inputs = list(
+            itertools.chain.from_iterable(
+                f.protected for f in fgraph._features if isinstance(f, Supervisor)
+            )
+        )
         protected_inputs.extend(fgraph.outputs)
         for node in list(io_toposort(fgraph.inputs, fgraph.outputs)):
             op = node.op

tests/graph/test_fg.py

+import itertools
 import pickle
 
 import numpy as np
@@ -574,7 +575,8 @@ class TestFunctionGraph:
         assert fg.outputs == [op1_out]
         assert op3_out not in fg.clients
         assert not any(
-            op3_out.owner in clients for clients in sum(fg.clients.values(), [])
+            op3_out.owner in clients
+            for clients in itertools.chain.from_iterable(fg.clients.values())
         )
 
         # Remove an input
@@ -585,7 +587,8 @@ class TestFunctionGraph:
         assert fg.inputs == [var2]
         assert fg.outputs == []
         assert not any(
-            op1_out.owner in clients for clients in sum(fg.clients.values(), [])
+            op1_out.owner in clients
+            for clients in itertools.chain.from_iterable(fg.clients.values())
         )
 
     def test_remove_duplicates(self):
@@ -622,10 +625,12 @@ class TestFunctionGraph:
         assert not fg.apply_nodes
         assert op1_out not in fg.clients
         assert not any(
-            op1_out.owner in clients for clients in sum(fg.clients.values(), [])
+            op1_out.owner in clients
+            for clients in itertools.chain.from_iterable(fg.clients.values())
         )
         assert not any(
-            op3_out.owner in clients for clients in sum(fg.clients.values(), [])
+            op3_out.owner in clients
+            for clients in itertools.chain.from_iterable(fg.clients.values())
         )
 
     def test_remove_node_multi_out(self):