Make all zips explicitly strict or non-strict

pyproject.toml

@@ -129,8 +129,12 @@ exclude = ["doc/", "pytensor/_version.py"]
 docstring-code-format = true
 
 [tool.ruff.lint]
-select = ["C", "E", "F", "I", "UP", "W", "RUF", "PERF", "PTH", "ISC"]
+select = ["B905", "C", "E", "F", "I", "UP", "W", "RUF", "PERF", "PTH", "ISC"]
 ignore = ["C408", "C901", "E501", "E741", "RUF012", "PERF203", "ISC001"]
+unfixable = [
+    # zip-strict: the auto-fix adds `strict=False` but we might want `strict=True` instead
+    "B905",
+]
 
 
 [tool.ruff.lint.isort]

pytensor/compile/builders.py

@@ -43,15 +43,15 @@ def infer_shape(outs, inputs, input_shapes):
     # TODO: ShapeFeature should live elsewhere
     from pytensor.tensor.rewriting.shape import ShapeFeature
 
-    for inp, inp_shp in zip(inputs, input_shapes):
+    for inp, inp_shp in zip(inputs, input_shapes, strict=True):
         if inp_shp is not None and len(inp_shp) != inp.type.ndim:
             assert len(inp_shp) == inp.type.ndim
 
     shape_feature = ShapeFeature()
     shape_feature.on_attach(FunctionGraph([], []))
 
     # Initialize shape_of with the input shapes
-    for inp, inp_shp in zip(inputs, input_shapes):
+    for inp, inp_shp in zip(inputs, input_shapes, strict=True):
         shape_feature.set_shape(inp, inp_shp)
 
     def local_traverse(out):
@@ -108,7 +108,9 @@ def construct_nominal_fgraph(
 
     replacements = dict(
         zip(
-            inputs + implicit_shared_inputs, dummy_inputs + dummy_implicit_shared_inputs
+            inputs + implicit_shared_inputs,
+            dummy_inputs + dummy_implicit_shared_inputs,
+            strict=True,
         )
     )
 
@@ -138,7 +140,7 @@ def construct_nominal_fgraph(
         NominalVariable(n, var.type) for n, var in enumerate(local_inputs)
     )
 
-    fgraph.replace_all(zip(local_inputs, nominal_local_inputs))
+    fgraph.replace_all(zip(local_inputs, nominal_local_inputs, strict=True))
 
     for i, inp in enumerate(fgraph.inputs):
         nom_inp = nominal_local_inputs[i]
@@ -562,7 +564,9 @@ def lop_overrides(inps, grads):
             # compute non-overriding downsteam grads from upstreams grads
             # it's normal some input may be disconnected, thus the 'ignore'
             wrt = [
-                lin for lin, gov in zip(inner_inputs, custom_input_grads) if gov is None
+                lin
+                for lin, gov in zip(inner_inputs, custom_input_grads, strict=True)
+                if gov is None
             ]
             default_input_grads = fn_grad(wrt=wrt) if wrt else []
             input_grads = self._combine_list_overrides(
@@ -653,7 +657,7 @@ def _build_and_cache_rop_op(self):
             f = [
                 output
                 for output, custom_output_grad in zip(
-                    inner_outputs, custom_output_grads
+                    inner_outputs, custom_output_grads, strict=True
                 )
                 if custom_output_grad is None
             ]
@@ -733,18 +737,24 @@ def make_node(self, *inputs):
 
         non_shared_inputs = [
             inp_t.filter_variable(inp)
-            for inp, inp_t in zip(non_shared_inputs, self.input_types)
+            for inp, inp_t in zip(non_shared_inputs, self.input_types, strict=True)
         ]
 
         new_shared_inputs = inputs[num_expected_inps:]
-        inner_and_input_shareds = list(zip(self.shared_inputs, new_shared_inputs))
+        inner_and_input_shareds = list(
+            zip(self.shared_inputs, new_shared_inputs, strict=True)
+        )
 
         if not all(inp_s == inn_s for inn_s, inp_s in inner_and_input_shareds):
             # The shared variables are not equal to the original shared
             # variables, so we construct a new `Op` that uses the new shared
             # variables instead.
             replace = dict(
-                zip(self.inner_inputs[num_expected_inps:], new_shared_inputs)
+                zip(
+                    self.inner_inputs[num_expected_inps:],
+                    new_shared_inputs,
+                    strict=True,
+                )
             )
 
             # If the new shared variables are inconsistent with the inner-graph,
@@ -811,7 +821,7 @@ def infer_shape(self, fgraph, node, shapes):
         # each shape call. PyTensor optimizer will clean this up later, but this
         # will make extra work for the optimizer.
 
-        repl = dict(zip(self.inner_inputs, node.inputs))
+        repl = dict(zip(self.inner_inputs, node.inputs, strict=True))
         clone_out_shapes = [s for s in out_shapes if isinstance(s, tuple)]
         cloned = clone_replace(sum(clone_out_shapes, ()), replace=repl)
         ret = []
@@ -853,5 +863,5 @@ def clone(self):
     def perform(self, node, inputs, outputs):
         variables = self.fn(*inputs)
         assert len(variables) == len(outputs)
-        for output, variable in zip(outputs, variables):
+        for output, variable in zip(outputs, variables, strict=True):
             output[0] = variable

pytensor/compile/debugmode.py

@@ -865,7 +865,7 @@ def _get_preallocated_maps(
                 # except if broadcastable, or for dimensions above
                 # config.DebugMode__check_preallocated_output_ndim
                 buf_shape = []
-                for s, b in zip(r_vals[r].shape, r.broadcastable):
+                for s, b in zip(r_vals[r].shape, r.broadcastable, strict=True):
                     if b or ((r.ndim - len(buf_shape)) > check_ndim):
                         buf_shape.append(s)
                     else:
@@ -943,7 +943,7 @@ def _get_preallocated_maps(
                         r_shape_diff = shape_diff[: r.ndim]
                         new_buf_shape = [
                             max((s + sd), 0)
-                            for s, sd in zip(r_vals[r].shape, r_shape_diff)
+                            for s, sd in zip(r_vals[r].shape, r_shape_diff, strict=True)
                         ]
                         new_buf = np.empty(new_buf_shape, dtype=r.type.dtype)
                         new_buf[...] = np.asarray(def_val).astype(r.type.dtype)
@@ -1575,7 +1575,7 @@ def f():
                 # try:
                 # compute the value of all variables
                 for i, (thunk_py, thunk_c, node) in enumerate(
-                    zip(thunks_py, thunks_c, order)
+                    zip(thunks_py, thunks_c, order, strict=True)
                 ):
                     _logger.debug(f"{i} - starting node {i} {node}")
 
@@ -1855,7 +1855,7 @@ def thunk():
                     assert s[0] is None
 
                 # store our output variables to their respective storage lists
-                for output, storage in zip(fgraph.outputs, output_storage):
+                for output, storage in zip(fgraph.outputs, output_storage, strict=True):
                     storage[0] = r_vals[output]
 
                 # transfer all inputs back to their respective storage lists
@@ -1931,11 +1931,11 @@ def deco():
             f,
             [
                 Container(input, storage, readonly=False)
-                for input, storage in zip(fgraph.inputs, input_storage)
+                for input, storage in zip(fgraph.inputs, input_storage, strict=True)
             ],
             [
                 Container(output, storage, readonly=True)
-                for output, storage in zip(fgraph.outputs, output_storage)
+                for output, storage in zip(fgraph.outputs, output_storage, strict=True)
             ],
             thunks_py,
             order,
@@ -2122,7 +2122,9 @@ def __init__(
 
         no_borrow = [
             output
-            for output, spec in zip(fgraph.outputs, outputs + additional_outputs)
+            for output, spec in zip(
+                fgraph.outputs, outputs + additional_outputs, strict=True
+            )
             if not spec.borrow
         ]
         if no_borrow:

pytensor/compile/function/pfunc.py

@@ -603,7 +603,7 @@ def construct_pfunc_ins_and_outs(
 
         new_inputs = []
 
-        for i, iv in zip(inputs, input_variables):
+        for i, iv in zip(inputs, input_variables, strict=True):
             new_i = copy(i)
             new_i.variable = iv
 
@@ -637,13 +637,13 @@ def construct_pfunc_ins_and_outs(
         assert len(fgraph.inputs) == len(inputs)
         assert len(fgraph.outputs) == len(outputs)
 
-        for fg_inp, inp in zip(fgraph.inputs, inputs):
+        for fg_inp, inp in zip(fgraph.inputs, inputs, strict=True):
             if fg_inp != getattr(inp, "variable", inp):
                 raise ValueError(
                     f"`fgraph`'s input does not match the provided input: {fg_inp}, {inp}"
                 )
 
-        for fg_out, out in zip(fgraph.outputs, outputs):
+        for fg_out, out in zip(fgraph.outputs, outputs, strict=True):
             if fg_out != getattr(out, "variable", out):
                 raise ValueError(
                     f"`fgraph`'s output does not match the provided output: {fg_out}, {out}"

pytensor/compile/function/types.py

@@ -241,7 +241,7 @@ def std_fgraph(
     fgraph.attach_feature(
         Supervisor(
             input
-            for spec, input in zip(input_specs, fgraph.inputs)
+            for spec, input in zip(input_specs, fgraph.inputs, strict=True)
             if not (
                 spec.mutable
                 or (hasattr(fgraph, "destroyers") and fgraph.has_destroyers([input]))
@@ -442,7 +442,7 @@ def __init__(
         # this loop works by modifying the elements (as variable c) of
         # self.input_storage inplace.
         for i, ((input, indices, sinputs), (required, refeed, value)) in enumerate(
-            zip(self.indices, defaults)
+            zip(self.indices, defaults, strict=True)
         ):
             if indices is None:
                 # containers is being used as a stack. Here we pop off
@@ -671,7 +671,7 @@ def checkSV(sv_ori, sv_rpl):
         else:
             outs = list(map(SymbolicOutput, fg_cpy.outputs))
 
-        for out_ori, out_cpy in zip(maker.outputs, outs):
+        for out_ori, out_cpy in zip(maker.outputs, outs, strict=False):
             out_cpy.borrow = out_ori.borrow
 
         # swap SharedVariable
@@ -684,7 +684,7 @@ def checkSV(sv_ori, sv_rpl):
                     raise ValueError(f"SharedVariable: {sv.name} not found")
 
             # Swap SharedVariable in fgraph and In instances
-            for index, (i, in_v) in enumerate(zip(ins, fg_cpy.inputs)):
+            for index, (i, in_v) in enumerate(zip(ins, fg_cpy.inputs, strict=True)):
                 # Variables in maker.inputs are defined by user, therefore we
                 # use them to make comparison and do the mapping.
                 # Otherwise we don't touch them.
@@ -708,7 +708,7 @@ def checkSV(sv_ori, sv_rpl):
 
         # Delete update if needed
         rev_update_mapping = {v: k for k, v in fg_cpy.update_mapping.items()}
-        for n, (inp, in_var) in enumerate(zip(ins, fg_cpy.inputs)):
+        for n, (inp, in_var) in enumerate(zip(ins, fg_cpy.inputs, strict=True)):
             inp.variable = in_var
             if not delete_updates and inp.update is not None:
                 out_idx = rev_update_mapping[n]
@@ -768,7 +768,11 @@ def checkSV(sv_ori, sv_rpl):
         ).create(input_storage, storage_map=new_storage_map)
 
         for in_ori, in_cpy, ori, cpy in zip(
-            maker.inputs, f_cpy.maker.inputs, self.input_storage, f_cpy.input_storage
+            maker.inputs,
+            f_cpy.maker.inputs,
+            self.input_storage,
+            f_cpy.input_storage,
+            strict=True,
         ):
             # Share immutable ShareVariable and constant input's storage
             swapped = swap is not None and in_ori.variable in swap
@@ -999,7 +1003,7 @@ def __call__(self, *args, **kwargs):
         # output reference from the internal storage cells
         if getattr(self.vm, "allow_gc", False):
             for o_container, o_variable in zip(
-                self.output_storage, self.maker.fgraph.outputs
+                self.output_storage, self.maker.fgraph.outputs, strict=True
             ):
                 if o_variable.owner is not None:
                     # this node is the variable of computation
@@ -1009,7 +1013,7 @@ def __call__(self, *args, **kwargs):
         if getattr(self.vm, "need_update_inputs", True):
             # Update the inputs that have an update function
             for input, storage in reversed(
-                list(zip(self.maker.expanded_inputs, input_storage))
+                list(zip(self.maker.expanded_inputs, input_storage, strict=True))
             ):
                 if input.update is not None:
                     storage.data = outputs.pop()
@@ -1040,7 +1044,7 @@ def __call__(self, *args, **kwargs):
                 assert len(self.output_keys) == len(outputs)
 
                 if output_subset is None:
-                    return dict(zip(self.output_keys, outputs))
+                    return dict(zip(self.output_keys, outputs, strict=True))
                 else:
                     return {
                         self.output_keys[index]: outputs[index]
@@ -1108,7 +1112,7 @@ def _pickle_Function(f):
     input_storage = []
 
     for (input, indices, inputs), (required, refeed, default) in zip(
-        f.indices, f.defaults
+        f.indices, f.defaults, strict=True
     ):
         input_storage.append(ins[0])
         del ins[0]
@@ -1150,7 +1154,7 @@ def _constructor_Function(maker, input_storage, inputs_data, trust_input=False):
 
     f = maker.create(input_storage)
     assert len(f.input_storage) == len(inputs_data)
-    for container, x in zip(f.input_storage, inputs_data):
+    for container, x in zip(f.input_storage, inputs_data, strict=True):
         assert (
             (container.data is x)
             or (isinstance(x, np.ndarray) and (container.data == x).all())
@@ -1184,7 +1188,7 @@ def insert_deepcopy(fgraph, wrapped_inputs, wrapped_outputs):
     reason = "insert_deepcopy"
     updated_fgraph_inputs = {
         fgraph_i
-        for i, fgraph_i in zip(wrapped_inputs, fgraph.inputs)
+        for i, fgraph_i in zip(wrapped_inputs, fgraph.inputs, strict=True)
         if getattr(i, "update", False)
     }
 
@@ -1521,7 +1525,9 @@ def __init__(
         # return the internal storage pointer.
         no_borrow = [
             output
-            for output, spec in zip(fgraph.outputs, outputs + found_updates)
+            for output, spec in zip(
+                fgraph.outputs, outputs + found_updates, strict=True
+            )
             if not spec.borrow
         ]
 
@@ -1590,7 +1596,7 @@ def create(self, input_storage=None, storage_map=None):
         # defaults lists.
         assert len(self.indices) == len(input_storage)
         for i, ((input, indices, subinputs), input_storage_i) in enumerate(
-            zip(self.indices, input_storage)
+            zip(self.indices, input_storage, strict=True)
         ):
             # Replace any default value given as a variable by its
             # container.  Note that this makes sense only in the

pytensor/d3viz/formatting.py

@@ -244,14 +244,14 @@ def format_map(m):
                 ext_inputs = [self.__node_id(x) for x in node.inputs]
                 int_inputs = [gf.__node_id(x) for x in node.op.inner_inputs]
                 assert len(ext_inputs) == len(int_inputs)
-                h = format_map(zip(ext_inputs, int_inputs))
+                h = format_map(zip(ext_inputs, int_inputs, strict=True))
                 pd_node.get_attributes()["subg_map_inputs"] = h
 
                 # Outputs mapping
                 ext_outputs = [self.__node_id(x) for x in node.outputs]
                 int_outputs = [gf.__node_id(x) for x in node.op.inner_outputs]
                 assert len(ext_outputs) == len(int_outputs)
-                h = format_map(zip(int_outputs, ext_outputs))
+                h = format_map(zip(int_outputs, ext_outputs, strict=True))
                 pd_node.get_attributes()["subg_map_outputs"] = h
 
         return graph