Activate ruff-specific rules (RUF)

.pre-commit-config.yaml

@@ -1,10 +1,10 @@
 repos:
   - repo: https://github.com/ambv/black
-    rev: 23.11.0
+    rev: 23.12.0
     hooks:
       - id: black
   - repo: https://github.com/charliermarsh/ruff-pre-commit
     # Ruff version.
-    rev: v0.1.6
+    rev: v0.1.7
     hooks:
       - id: ruff

pyproject.toml

@@ -24,14 +24,18 @@ skip = "pp* *_ppc64le  *-musllinux* *_s390x"  # skip pypy and irrelevant archite
 [tool.ruff]
 select = [
     "B",  # flake8-bugbear
+    "C4",  # flake8-comprehensions
     "F",  # pyflakes
     "UP",  # pyupgrade
     "I",  # isort
+    "PIE",  # flake8-pie
+    "RUF",  # Ruff-specific rules
 ]
 ignore = [
     "B007",  # unused-loop-control-variable
-    "F401",  # unused-import
     "F841",  # unused-variable
+    "RUF012",  # mutable-class-default
+    "RUF015",  # unnecessary-iterable-allocation-for-first-element
 ]
 exclude = ["./src/asammdf/gui/ui"]
 target-version = "py38"

setup.py

@@ -129,7 +129,7 @@ def _get_ext_modules():
     include_package_data=True,
     # Although 'package_data' is the preferred approach, in some case you may
     # need to place data files outside of your packages. See:
-    # http://docs.python.org/3.4/distutils/setupscript.html#installing-additional-files # noqa
+    # http://docs.python.org/3.4/distutils/setupscript.html#installing-additional-files
     # In this case, 'data_file' will be installed into '<sys.prefix>/my_data'
     #    data_files=[('my_data', ['data/data_file'])],
     # To provide executable scripts, use entry points in preference to the

src/asammdf/__init__.py

@@ -22,7 +22,7 @@
 from .version import __version__
 
 try:
-    from .blocks import cutils
+    from .blocks import cutils  # noqa: F401
 
     __cextension__ = True
 except ImportError:

src/asammdf/blocks/mdf_v3.py

@@ -3009,7 +3009,7 @@ def get(
                     size = byte_size
 
                     vals_dtype = vals.dtype.kind
-                    if vals_dtype not in "ui" and (bit_offset or not bits == size * 8):
+                    if vals_dtype not in "ui" and (bit_offset or bits != size * 8):
                         vals = self._get_not_byte_aligned_data(data_bytes, grp, ch_nr)
                     else:
                         dtype_ = vals.dtype
@@ -3285,7 +3285,7 @@ def get_master(
                     if time_b:
                         t += time_b
 
-        if not t.dtype == float64:
+        if t.dtype != float64:
             t = t.astype(float64)
 
         self._master_channel_metadata[index] = metadata

src/asammdf/blocks/mdf_v4.py

@@ -155,7 +155,7 @@
 COMMON_SHORT_u = v4c.COMMON_SHORT_u
 VALID_DATA_TYPES = v4c.VALID_DATA_TYPES
 
-EMPTY_TUPLE = tuple()
+EMPTY_TUPLE = ()
 
 # 100 extra steps for the sorting, 1 step after sorting and 1 step at finish
 SORT_STEPS = 102
@@ -4443,7 +4443,7 @@ def _append_dataframe(
         acq_name: str | None = None,
         acq_source: Source | None = None,
         comment: str | None = None,
-        units: dict[str, str | bytes] = None,
+        units: dict[str, str | bytes] | None = None,
     ) -> None:
         """
         Appends a new data group from a Pandas data frame.
@@ -6927,7 +6927,7 @@ def _get_array(
                 shape = (shape[0],) + shape[1:][::-1]
                 vals = vals.reshape(shape)
 
-                axes = (0,) + tuple(range(len(shape) - 1, 0, -1))
+                axes = (0, *reversed(range(1, len(shape))))
                 vals = transpose(vals, axes=axes)
 
             cycles_nr = len(vals)
@@ -8028,7 +8028,6 @@ def _yield_selected_signals(
 
                         signals.append(signal)
 
-                    pass
                 else:
                     for channel_index in channels:
                         signal, invalidation_bits = self.get(
@@ -8288,7 +8287,7 @@ def get_master(
 
         self._master_channel_metadata[index] = metadata
 
-        if not t.dtype == float64:
+        if t.dtype != float64:
             t = t.astype(float64)
 
         if raster and t.size:

src/asammdf/blocks/utils.py

@@ -6,7 +6,6 @@
 
 from collections.abc import Iterator
 from copy import deepcopy
-from enum import IntFlag
 from functools import lru_cache
 from io import StringIO
 import json
@@ -120,7 +119,7 @@ def detect(text: bytes) -> DetectDict:
 BLK_COMMON_uf = Struct("<4s4xQ").unpack_from
 BLK_COMMON_u = Struct("<4s4xQ8x").unpack
 
-EMPTY_TUPLE = tuple()
+EMPTY_TUPLE = ()
 
 _xmlns_pattern = re.compile(' xmlns="[^"]*"')
 

src/asammdf/blocks/v2_v3_blocks.py

@@ -985,7 +985,7 @@ def __init__(self, **kwargs) -> None:
 
             if conv_type == v23c.CONVERSION_TYPE_LINEAR:
                 (self.b, self.a) = unpack_from("<2d", block, v23c.CC_COMMON_SHORT_SIZE)
-                if not size == v23c.CC_LIN_BLOCK_SIZE:
+                if size != v23c.CC_LIN_BLOCK_SIZE:
                     self.CANapeHiddenExtra = block[v23c.CC_LIN_BLOCK_SIZE - 4 :]
                     size = len(self.CANapeHiddenExtra)
                     nr = size // 40
@@ -1151,7 +1151,7 @@ def __init__(self, **kwargs) -> None:
                 self.ref_param_nr = 2
                 self.b = kwargs.get("b", 0)
                 self.a = kwargs.get("a", 1)
-                if not self.block_len == v23c.CC_LIN_BLOCK_SIZE:
+                if self.block_len != v23c.CC_LIN_BLOCK_SIZE:
                     self.CANapeHiddenExtra = kwargs["CANapeHiddenExtra"]
 
             elif kwargs["conversion_type"] in (
@@ -1323,7 +1323,7 @@ def metadata(self, indent: str = "") -> str:
             keys = v23c.KEYS_CONVERSION_FORMULA
         elif conv == v23c.CONVERSION_TYPE_LINEAR:
             keys = v23c.KEYS_CONVERSION_LINEAR
-            if not self.block_len == v23c.CC_LIN_BLOCK_SIZE:
+            if self.block_len != v23c.CC_LIN_BLOCK_SIZE:
                 keys += ("CANapeHiddenExtra",)
 
                 nr = self.ref_param_nr
@@ -1640,7 +1640,7 @@ def __bytes__(self) -> bytes:
             fmt = v23c.FMT_CONVERSION_FORMULA.format(self.block_len - v23c.CC_COMMON_BLOCK_SIZE)
         elif conv == v23c.CONVERSION_TYPE_LINEAR:
             fmt = v23c.FMT_CONVERSION_LINEAR
-            if not self.block_len == v23c.CC_LIN_BLOCK_SIZE:
+            if self.block_len != v23c.CC_LIN_BLOCK_SIZE:
                 fmt += f"{self.block_len - v23c.CC_LIN_BLOCK_SIZE}s"
         elif conv in (v23c.CONVERSION_TYPE_POLY, v23c.CONVERSION_TYPE_RAT):
             fmt = v23c.FMT_CONVERSION_POLY_RAT
@@ -1662,7 +1662,7 @@ def __bytes__(self) -> bytes:
             keys = v23c.KEYS_CONVERSION_FORMULA
         elif conv == v23c.CONVERSION_TYPE_LINEAR:
             keys = v23c.KEYS_CONVERSION_LINEAR
-            if not self.block_len == v23c.CC_LIN_BLOCK_SIZE:
+            if self.block_len != v23c.CC_LIN_BLOCK_SIZE:
                 keys += ("CANapeHiddenExtra",)
         elif conv in (v23c.CONVERSION_TYPE_POLY, v23c.CONVERSION_TYPE_RAT):
             keys = v23c.KEYS_CONVERSION_POLY_RAT

src/asammdf/blocks/v2_v3_constants.py

@@ -296,7 +296,7 @@
     "max_raw_value",
     "sampling_rate",
 )
-KEYS_CHANNEL_LONGNAME = KEYS_CHANNEL_SHORT + ("long_name_addr",)
+KEYS_CHANNEL_LONGNAME = (*KEYS_CHANNEL_SHORT, "long_name_addr")
 
 FMT_CHANNEL_GROUP = "<2sH3I3HI"
 KEYS_CHANNEL_GROUP = (

src/asammdf/blocks/v4_constants.py

@@ -657,7 +657,7 @@
 
 FMT_CONVERSION_LINEAR = FMT_CONVERSION_NONE + "2d"
 CONVERSION_LINEAR_PACK = struct.Struct(FMT_CONVERSION_LINEAR).pack
-KEYS_CONVERSION_LINEAR = KEYS_CONVERSION_NONE + ("b", "a")
+KEYS_CONVERSION_LINEAR = (*KEYS_CONVERSION_NONE, "b", "a")
 FMT_CONVERSION_LINEAR_INIT = "<4Q2B3H4d"
 CONVERSION_LINEAR_INIT_u = struct.Struct(FMT_CONVERSION_LINEAR_INIT).unpack
 CONVERSION_LINEAR_INIT_uf = struct.Struct(FMT_CONVERSION_LINEAR_INIT).unpack_from
@@ -686,7 +686,7 @@
 
 FMT_CONVERSION_RAT = FMT_CONVERSION_NONE + "6d"
 CONVERSION_RAT_PACK = struct.Struct(FMT_CONVERSION_RAT).pack
-KEYS_CONVERSION_RAT = KEYS_CONVERSION_NONE + ("P1", "P2", "P3", "P4", "P5", "P6")
+KEYS_CONVERSION_RAT = (*KEYS_CONVERSION_NONE, "P1", "P2", "P3", "P4", "P5", "P6")
 
 FMT_CONVERSION_RAT_INIT = "<4Q2B3H8d"
 

src/asammdf/gui/dialogs/bus_database_manager.py

@@ -25,13 +25,13 @@ def __init__(
         buses = can_databases[::2]
         dbs = can_databases[1::2]
 
-        databases["CAN"] = [(bus, database) for bus, database in zip(buses, dbs)]
+        databases["CAN"] = list(zip(buses, dbs))
 
         lin_databases = self._settings.value("lin_databases", [])
         buses = lin_databases[::2]
         dbs = lin_databases[1::2]
 
-        databases["LIN"] = [(bus, database) for bus, database in zip(buses, dbs)]
+        databases["LIN"] = list(zip(buses, dbs))
 
         self.widget = BusDatabaseManager(databases)
 

src/asammdf/gui/dialogs/multi_search.py

@@ -82,9 +82,9 @@ def search_text_changed(self):
 
     def _add(self, event):
         count = self.selection.count()
-        names = set(self.selection.item(i).text() for i in range(count))
+        names = {self.selection.item(i).text() for i in range(count)}
 
-        to_add = set(item.text() for item in self.matches.selectedItems())
+        to_add = {item.text() for item in self.matches.selectedItems()}
 
         names = names | to_add
 

src/asammdf/gui/utils.py

@@ -10,7 +10,7 @@
 import sys
 from textwrap import indent
 from threading import Thread
-from time import perf_counter, sleep
+from time import sleep
 import traceback
 from traceback import format_exc
 from typing import Dict, Union
@@ -444,7 +444,7 @@ def compute_signal(
                         if found_numeric:
                             break
 
-            names = found_args + ["t"]
+            names = [*found_args, "t"]
 
             triggering = description.get("triggering", "triggering_on_all")
             if triggering == "triggering_on_all":
@@ -504,7 +504,7 @@ def compute_signal(
                 samples = []
                 for values in zip(*signals):
                     try:
-                        current_sample = func(**{arg_name: arg_val for arg_name, arg_val in zip(names, values)})
+                        current_sample = func(**dict(zip(names, values)))
                     except:
                         current_sample = COMPUTED_FUNCTION_ERROR_VALUE
                     samples.append(current_sample)
@@ -536,7 +536,7 @@ def compute_signal(
                 names.extend(not_found)
                 signals.extend(not_found_signals)
 
-                samples = func(**{arg_name: arg_signal for arg_name, arg_signal in zip(names, signals)})
+                samples = func(**dict(zip(names, signals)))
                 if len(samples) != len(common_timebase):
                     common_timebase = common_timebase[-len(samples) :]
 

src/asammdf/gui/widgets/batch.py

@@ -19,8 +19,6 @@
     BUS_TYPE_FLEXRAY,
     BUS_TYPE_LIN,
     BUS_TYPE_USB,
-    FLAG_AT_TO_STRING,
-    FLAG_CG_BUS_EVENT,
 )
 from ...mdf import MDF, SUPPORTED_VERSIONS
 from ..dialogs.advanced_search import AdvancedSearch
@@ -119,7 +117,7 @@ def __init__(
         self.empty_channels_mat.insertItems(0, ("skip", "zeros"))
         self.empty_channels_csv.insertItems(0, ("skip", "zeros"))
         try:
-            import scipy
+            import scipy  # noqa: F401
 
             self.mat_format.insertItems(0, ("4", "5", "7.3"))
         except:
@@ -144,13 +142,13 @@ def __init__(
         buses = can_databases[::2]
         dbs = can_databases[1::2]
 
-        databases["CAN"] = [(bus, database) for bus, database in zip(buses, dbs)]
+        databases["CAN"] = list(zip(buses, dbs))
 
         lin_databases = self._settings.value("lin_databases", [])
         buses = lin_databases[::2]
         dbs = lin_databases[1::2]
 
-        databases["LIN"] = [(bus, database) for bus, database in zip(buses, dbs)]
+        databases["LIN"] = list(zip(buses, dbs))
 
         for bus, database in databases["CAN"]:
             item = QtWidgets.QListWidgetItem()
@@ -557,24 +555,22 @@ def extract_bus_csv_logging_thread(
             )
 
             result = mdf_.export(
-                **{
-                    "fmt": "csv",
-                    "filename": file_name,
-                    "single_time_base": single_time_base,
-                    "time_from_zero": time_from_zero,
-                    "empty_channels": empty_channels,
-                    "raster": raster or None,
-                    "time_as_date": time_as_date,
-                    "ignore_value2text_conversions": self.ignore_value2text_conversions,
-                    "delimiter": delimiter,
-                    "doublequote": doublequote,
-                    "escapechar": escapechar,
-                    "lineterminator": lineterminator,
-                    "quotechar": quotechar,
-                    "quoting": quoting,
-                    "add_units": add_units,
-                    "progress": progress,
-                }
+                fmt="csv",
+                filename=file_name,
+                single_time_base=single_time_base,
+                time_from_zero=time_from_zero,
+                empty_channels=empty_channels,
+                raster=raster or None,
+                time_as_date=time_as_date,
+                ignore_value2text_conversions=self.ignore_value2text_conversions,
+                delimiter=delimiter,
+                doublequote=doublequote,
+                escapechar=escapechar,
+                lineterminator=lineterminator,
+                quotechar=quotechar,
+                quoting=quoting,
+                add_units=add_units,
+                progress=progress,
             )
             if result is TERMINATED:
                 return
@@ -1309,7 +1305,7 @@ def apply_processing(self, event):
 
         if output_format == "HDF5":
             try:
-                from h5py import File as HDF5
+                from h5py import File as HDF5  # noqa: F401
             except ImportError:
                 MessageBox.critical(
                     self,
@@ -1331,7 +1327,7 @@ def apply_processing(self, event):
                     return
             else:
                 try:
-                    from scipy.io import savemat
+                    from scipy.io import savemat  # noqa: F401
                 except ImportError:
                     MessageBox.critical(
                         self,
@@ -1342,7 +1338,7 @@ def apply_processing(self, event):
 
         elif output_format == "Parquet":
             try:
-                from fastparquet import write as write_parquet
+                from fastparquet import write as write_parquet  # noqa: F401
             except ImportError:
                 MessageBox.critical(
                     self,
@@ -1376,18 +1372,18 @@ def apply_processing_thread(self, progress):
 
         if output_format == "HDF5":
             suffix = ".hdf"
-            from h5py import File as HDF5
+            from h5py import File as HDF5  # noqa: F401
 
         elif output_format == "MAT":
             suffix = ".mat"
             if opts.mat_format == "7.3":
                 from hdf5storage import savemat
             else:
-                from scipy.io import savemat
+                from scipy.io import savemat  # noqa: F401
 
         elif output_format == "Parquet":
             suffix = ".parquet"
-            from fastparquet import write as write_parquet
+            from fastparquet import write as write_parquet  # noqa: F401
 
         elif output_format == "CSV":
             suffix = ".csv"