misc: Remove (object) in class definitions

benchmarks/regression/benchmarks/acoustic.py

@@ -1,7 +1,7 @@
 from examples.seismic.acoustic.acoustic_example import acoustic_setup
 
 
-class IsotropicAcoustic(object):
+class IsotropicAcoustic:
 
     # ASV parametrization
     params = ([(492, 492, 492)], [12])

benchmarks/regression/benchmarks/arguments.py

@@ -6,7 +6,7 @@
 timeout = 600.0
 
 
-class Processing(object):
+class Processing:
 
     def setup(self):
         grid = Grid(shape=(5, 5, 5))

benchmarks/regression/benchmarks/codegen.py

@@ -4,7 +4,7 @@
 repeat = 3
 
 
-class TTI(object):
+class TTI:
 
     # ASV config
     repeat = 1

devito/arch/archinfo.py

@@ -595,7 +595,7 @@ def get_platform():
     return CPU64
 
 
-class Platform(object):
+class Platform:
 
     registry = {}
     """

devito/builtins/utils.py

@@ -9,7 +9,7 @@
 __all__ = ['MPIReduction', 'nbl_to_padsize', 'pad_outhalo', 'abstract_args']
 
 
-class MPIReduction(object):
+class MPIReduction:
     """
     A context manager to build MPI-aware reduction Operators.
     """

devito/checkpointing/__init__.py

@@ -5,7 +5,7 @@
     pass
 
 
-class Noop(object):
+class Noop:
     """ Dummy replacement in case pyrevolve isn't available. """
 
     def __init__(self, *args, **kwargs):

devito/core/autotuning.py

@@ -175,7 +175,7 @@ def autotune(operator, args, level, mode):
 
 
 @total_ordering
-class Record(object):
+class Record:
 
     def __init__(self):
         self.args = []

devito/core/cpu.py

@@ -16,7 +16,7 @@
            'Cpu64CustomOperator']
 
 
-class Cpu64OperatorMixin(object):
+class Cpu64OperatorMixin:
 
     @classmethod
     def _normalize_kwargs(cls, **kwargs):

devito/core/gpu.py

@@ -21,7 +21,7 @@
            'DeviceFsgAccOperator', 'DeviceCustomAccOperator']
 
 
-class DeviceOperatorMixin(object):
+class DeviceOperatorMixin:
 
     BLOCK_LEVELS = 0
     MPI_MODES = (True, 'basic',)
@@ -324,7 +324,7 @@ def _make_iet_passes_mapper(cls, **kwargs):
 
 # OpenMP
 
-class DeviceOmpOperatorMixin(object):
+class DeviceOmpOperatorMixin:
 
     _Target = DeviceOmpTarget
 
@@ -379,7 +379,7 @@ def _make_iet_passes_mapper(cls, **kwargs):
 
 # OpenACC
 
-class DeviceAccOperatorMixin(object):
+class DeviceAccOperatorMixin:
 
     _Target = DeviceAccTarget
 

devito/core/operator.py

@@ -345,7 +345,7 @@ def _specialize_iet(cls, graph, **kwargs):
 # Wrappers for optimization options
 
 
-class OptOption(object):
+class OptOption:
     pass
 
 

devito/data/allocators.py

@@ -18,7 +18,7 @@
            'default_allocator']
 
 
-class MemoryAllocator(object):
+class MemoryAllocator:
 
     """Abstract class defining the interface to memory allocators."""
 

devito/finite_differences/coefficients.py

@@ -9,7 +9,7 @@
 __all__ = ['Coefficient', 'Substitutions', 'default_rules']
 
 
-class Coefficient(object):
+class Coefficient:
     """
     Prepare custom coefficients to pass to a Substitutions object.
 
@@ -118,7 +118,7 @@ def _check_input(self, deriv_order, function, dimension, weights):
         return
 
 
-class Substitutions(object):
+class Substitutions:
     """
     Devito class to convert Coefficient objects into replacent rules
     to be applied when constructing a Devito Eq.

devito/finite_differences/differentiable.py

@@ -893,7 +893,7 @@ def _new_rawargs(self, *args, **kwargs):
         return self.func(*args, **kwargs)
 
 
-class diffify(object):
+class diffify:
 
     """
     Helper class based on single dispatch to reconstruct all nodes in a sympy

devito/ir/clusters/cluster.py

@@ -18,7 +18,7 @@
 __all__ = ["Cluster", "ClusterGroup"]
 
 
-class Cluster(object):
+class Cluster:
 
     """
     A Cluster is an ordered sequence of expressions in an IterationSpace.

devito/ir/clusters/visitors.py

@@ -9,7 +9,7 @@
 __all__ = ['Queue', 'QueueStateful', 'cluster_pass']
 
 
-class Queue(object):
+class Queue:
 
     """
     A special queue to process Clusters based on a divide-and-conquer algorithm.
@@ -120,7 +120,7 @@ class QueueStateful(Queue):
     expensive re-computations of information.
     """
 
-    class State(object):
+    class State:
 
         def __init__(self):
             self.properties = {}
@@ -176,7 +176,7 @@ def __hash__(self):
                      self.guards, self.properties, self.syncs))
 
 
-class cluster_pass(object):
+class cluster_pass:
 
     def __new__(cls, *args, mode='dense'):
         if args:

devito/ir/iet/nodes.py

@@ -155,7 +155,7 @@ def _signature_items(self):
         return (str(self.ccode),)
 
 
-class ExprStmt(object):
+class ExprStmt:
 
     """
     A mixin for Nodes that represent C expression statements, which are expressions
@@ -1234,7 +1234,7 @@ def pragmas(self):
         return as_tuple(self.callback(*self.arguments))
 
 
-class Transfer(object):
+class Transfer:
 
     """
     An interface for Nodes that represent host-device data transfers.

devito/ir/support/basic.py

@@ -505,7 +505,7 @@ def touched_halo(self, findex):
         return (touch_halo_left, touch_halo_right)
 
 
-class Relation(object):
+class Relation:
 
     """
     A relation between two TimedAccess objects.
@@ -813,7 +813,7 @@ def project(self, function):
         return DependenceGroup(i for i in self if i.function is function)
 
 
-class Scope(object):
+class Scope:
 
     def __init__(self, exprs, rules=None):
         """
@@ -1196,7 +1196,7 @@ def r_all(self):
         return list(self.r_gen())
 
 
-class ExprGeometry(object):
+class ExprGeometry:
 
     """
     Geometric representation of an expression by abstracting Indexeds as

devito/ir/support/guards.py

@@ -15,7 +15,7 @@
            'BaseGuardBoundNext', 'GuardOverflow', 'Guards']
 
 
-class Guard(object):
+class Guard:
 
     @property
     def _args_rebuild(self):

devito/ir/support/space.py

@@ -20,7 +20,7 @@
 S0 = Stamp()
 
 
-class AbstractInterval(object):
+class AbstractInterval:
 
     """
     An abstract representation of an iterated closed interval on Z.
@@ -554,7 +554,7 @@ def __getitem__(self, key):
         return NullInterval(key)
 
 
-class IterationDirection(object):
+class IterationDirection:
 
     """
     A representation of the direction in which an iteration space is traversed.
@@ -610,7 +610,7 @@ def args(self):
         return (self, self.sub_iterators, self.direction)
 
 
-class Space(object):
+class Space:
 
     """
     A compact N-dimensional space defined by N Intervals.

devito/ir/support/symregistry.py

@@ -5,7 +5,7 @@
 __init__ = ['SymbolRegistry']
 
 
-class SymbolRegistry(object):
+class SymbolRegistry:
 
     """A registry for all the symbols used by an Operator."""
 

devito/ir/support/utils.py

@@ -13,7 +13,7 @@
            'extrema', 'erange']
 
 
-class AccessMode(object):
+class AccessMode:
 
     """
     A descriptor for access modes (read, write, ...).

devito/logger.py

@@ -88,7 +88,7 @@ def set_log_level(level, comm=None):
     configuration['log-level'] = level
 
 
-class switch_log_level(object):
+class switch_log_level:
     """
     A context manager to temporarily change MPI logging.
     """

devito/mpi/distributed.py

@@ -49,7 +49,7 @@ class NoneMetaclass(type):
         def __getattr__(self, name):
             return None
 
-    class MPI(object, metaclass=NoneMetaclass):
+    class MPI(metaclass=NoneMetaclass):
         init_error = e
 
         @classmethod

devito/mpi/halo_scheme.py

@@ -35,7 +35,7 @@ class HaloLabel(Tag):
 OMapper = namedtuple('OMapper', 'core owned')
 
 
-class HaloScheme(object):
+class HaloScheme:
 
     """
     A HaloScheme describes a set of halo exchanges through a mapper:

devito/mpi/routines.py

@@ -24,7 +24,7 @@
 __all__ = ['HaloExchangeBuilder', 'mpi_registry']
 
 
-class HaloExchangeBuilder(object):
+class HaloExchangeBuilder:
 
     """
     Build IET-based routines to implement MPI halo exchange.

devito/operator/profiling.py

@@ -30,7 +30,7 @@
 PerfEntry = namedtuple('PerfEntry', 'time gflopss gpointss oi ops itershapes')
 
 
-class Profiler(object):
+class Profiler:
 
     _default_includes = []
     _default_libs = []

devito/parameters.py

@@ -222,7 +222,7 @@ def init_configuration(configuration=configuration, env_vars_mapper=env_vars_map
     configuration.initialize()
 
 
-class switchconfig(object):
+class switchconfig:
 
     """
     Decorator or context manager to temporarily change `configuration` parameters.

devito/passes/clusters/aliases.py

@@ -99,7 +99,7 @@ def cire(clusters, mode, sregistry, options, platform):
     return clusters
 
 
-class CireTransformer(object):
+class CireTransformer:
 
     """
     Abstract base class for transformers implementing a CIRE variant.
@@ -1192,7 +1192,7 @@ def _pivot_legal_shifts(self):
 Variant = namedtuple('Variant', 'schedule exprs')
 
 
-class Alias(object):
+class Alias:
 
     def __init__(self, pivot, aliaseds, intervals, distances, score):
         self.pivot = pivot
@@ -1233,7 +1233,7 @@ def is_frame(self):
         return all(len([e for e in i if e != 0]) <= 1 for i in self.distances)
 
 
-class AliasList(object):
+class AliasList:
 
     def __init__(self, aliases=None):
         if aliases is None:

devito/passes/clusters/asynchrony.py

@@ -320,7 +320,7 @@ def _actions_from_update_memcpy(self, cluster, clusters, prefix, actions):
 # Utilities
 
 
-class Actions(object):
+class Actions:
 
     def __init__(self, drop=False, syncs=None, insert=None):
         self.drop = drop

devito/passes/clusters/blocking.py

@@ -434,7 +434,7 @@ def decompose(ispace, d, block_dims):
     return IterationSpace(intervals, sub_iterators, directions)
 
 
-class BlockSizeGenerator(object):
+class BlockSizeGenerator:
 
     """
     A wrapper for several UnboundedMultiTuples.

devito/passes/clusters/buffering.py

@@ -317,7 +317,7 @@ def callback(self, clusters, prefix, cache=None):
         return init + processed
 
 
-class Buffer(object):
+class Buffer:
 
     """
     A buffer with metadata attached.
@@ -660,7 +660,7 @@ def firstidx(self):
         return Map(v % self.xd.symbolic_size, v)
 
 
-class AccessValue(object):
+class AccessValue:
 
     """
     A simple data structure tracking the accesses performed by a given Function