chore: use ruff instead of flake8,black,isort,pyupgrade,nbQA,etc.

.pre-commit-config.yaml

@@ -19,37 +19,9 @@ repos:
     - id: mixed-line-ending
     - id: trailing-whitespace
 
--   repo: https://github.com/asottile/pyupgrade
-    rev: v3.17.0
+-   repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: "v0.6.8"
     hooks:
-    - id: pyupgrade
-      args: ["--py37-plus"]
-
--   repo: https://github.com/pycqa/isort
-    rev: 5.13.2
-    hooks:
-    - id: isort
-
--   repo: https://github.com/PyCQA/flake8
-    rev: 7.1.1
-    hooks:
-    - id: flake8
-
--   repo: https://github.com/MarcoGorelli/absolufy-imports
-    rev: v0.3.1
-    hooks:
-    - id: absolufy-imports
-
--   repo: https://github.com/psf/black-pre-commit-mirror
-    rev: 24.8.0
-    hooks:
-    - id: black-jupyter
-
--   repo: https://github.com/nbQA-dev/nbQA
-    rev: 1.8.7
-    hooks:
-    - id: nbqa-pyupgrade
-      additional_dependencies: [pyupgrade==3.15.0]
-      args: ["--py37-plus"]
-    - id: nbqa-isort
-      additional_dependencies: [isort==5.12.0]
+    - id: ruff
+      args: ["--fix", "--show-fixes"]
+    - id: ruff-format

examples/awkward_example.ipynb

@@ -6,9 +6,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "import awkward as ak\n",
     "import hist\n",
-    "import numpy as np\n",
     "\n",
     "import pylhe"
    ]

examples/parquet_cache.ipynb

@@ -68,7 +68,8 @@
     "\n",
     "    # need the file to exist\n",
     "    if not os.path.exists(filepath):\n",
-    "        raise FileNotFoundError(f\"Input LHE file {filepath} does not exist.\")\n",
+    "        msg = f\"Input LHE file {filepath} does not exist.\"\n",
+    "        raise FileNotFoundError(msg)\n",
     "\n",
     "    # leave early without even thinking about cache if user doesn't want it\n",
     "    if not parquet_cache:\n",

examples/zpeak.ipynb

@@ -20,8 +20,6 @@
    },
    "outputs": [],
    "source": [
-    "import math\n",
-    "\n",
     "import hist\n",
     "\n",
     "import pylhe"
@@ -386,8 +384,8 @@
  ],
  "metadata": {
   "kernelspec": {
-   "name": "pythonjvsc74a57bd073182083f4e2a7a153b1c22bd64054bec714030b17650bd3a885c40287b848ca",
-   "display_name": "Python 3.7.2  ('_env': venv)"
+   "display_name": "Python 3.7.2  ('_env': venv)",
+   "name": "pythonjvsc74a57bd073182083f4e2a7a153b1c22bd64054bec714030b17650bd3a885c40287b848ca"
   },
   "language_info": {
    "codemirror_mode": {

pyproject.toml

@@ -47,8 +47,7 @@ dependencies = [
 
 [project.optional-dependencies]
 lint = [
-    "black",
-    "flake8",
+    "ruff",
 ]
 test = [
     "pydocstyle",
@@ -89,28 +88,34 @@ include = [
 [tool.hatch.build.targets.wheel]
 packages = ["src/pylhe"]
 
-[tool.black]
-line-length = 88
-include = '\.pyi?$'
-extend-exclude = '''
-/(
-    \.git
-  | .eggs
-  | build
-  | src/pylhe/_version.py
-)/
-'''
-
-[tool.isort]
-profile = "black"
-
-[tool.nbqa.config]
-black = "pyproject.toml"
-
-[tool.nbqa.mutate]
-black = 1
-pyupgrade = 1
-isort = 1
-
-[tool.nbqa.addopts]
-pyupgrade = ["--py36-plus"]
+[tool.ruff.lint]
+extend-select = [
+  "B",        # flake8-bugbear
+  "I",        # isort
+  "ARG",      # flake8-unused-arguments
+  "C4",       # flake8-comprehensions
+  "EM",       # flake8-errmsg
+  "ICN",      # flake8-import-conventions
+  "G",        # flake8-logging-format
+  "PGH",      # pygrep-hooks
+  "PIE",      # flake8-pie
+  "PL",       # pylint
+  "PT",       # flake8-pytest-style
+  "RET",      # flake8-return
+  "RUF",      # Ruff-specific
+  "SIM",      # flake8-simplify
+  "UP",       # pyupgrade
+  "YTT",      # flake8-2020
+  "EXE",      # flake8-executable
+  "NPY",      # NumPy specific rules
+  "PD",       # pandas-vet
+  "FURB",     # refurb
+  "PYI",      # flake8-pyi
+]
+ignore = [
+  "PLR09",    # Too many <...>
+  "PLR2004",  # Magic value used in comparison
+  "ISC001",   # Conflicts with formatter
+  "RUF012",   # TODO: mutable class attributes
+  "SIM115",   # TODO: use context manager for opening files
+]

src/pylhe/__init__.py

@@ -64,18 +64,16 @@ def tolhe(self, rwgt=True, weights=False):
             str: The event as a string in LHE format.
         """
         sweights = ""
-        if rwgt:
-            if self.weights:
-                sweights = "<rwgt>\n"
-                for k, v in self.weights.items():
-                    sweights += f" <wgt id='{k}'>{v:11.4e}</wgt>\n"
-                sweights += "</rwgt>\n"
-        if weights:
-            if self.weights:
-                sweights = "<weights>\n"
-                for k, v in self.weights.items():
-                    sweights += f"{v:11.4e}\n"
-                sweights += "</weights>\n"
+        if rwgt and self.weights:
+            sweights = "<rwgt>\n"
+            for k, v in self.weights.items():
+                sweights += f" <wgt id='{k}'>{v:11.4e}</wgt>\n"
+            sweights += "</rwgt>\n"
+        if weights and self.weights:
+            sweights = "<weights>\n"
+            for v in self.weights.values():
+                sweights += f"{v:11.4e}\n"
+            sweights += "</weights>\n"
 
         return (
             "<event>\n"
@@ -156,9 +154,8 @@ class LHEEventInfo:
 
     def __init__(self, **kwargs):
         if set(kwargs.keys()) != set(self.fieldnames):
-            raise RuntimeError(
-                f"LHEEventInfo constructor expects fields {self.fieldnames}! Got {kwargs.keys()}."
-            )
+            msg = f"LHEEventInfo constructor expects fields {self.fieldnames}! Got {kwargs.keys()}."
+            raise RuntimeError(msg)
         for k, v in kwargs.items():
             setattr(self, k, v)
 
@@ -198,9 +195,8 @@ class LHEParticle:
 
     def __init__(self, **kwargs):
         if set(kwargs.keys()) != set(self.fieldnames):
-            raise RuntimeError(
-                f"LHEParticle constructor expects fields {self.fieldnames}! Got {kwargs.keys()}."
-            )
+            msg = f"LHEParticle constructor expects fields {self.fieldnames}! Got {kwargs.keys()}."
+            raise RuntimeError(msg)
         for k, v in kwargs.items():
             setattr(self, k, v)
 
@@ -224,7 +220,7 @@ def mothers(self):
         first_idx = int(self.mother1) - 1
         second_idx = int(self.mother2) - 1
         return [
-            self.event.particles[idx] for idx in {first_idx, second_idx} if idx >= 0
+            self.event.particles[idx] for idx in (first_idx, second_idx) if idx >= 0
         ]
 
 
@@ -238,13 +234,12 @@ def _indent(elem, level=0):
             elem.text = i + "  "
         if not elem.tail or not elem.tail.strip():
             elem.tail = i
-        for elem in elem:
-            _indent(elem, level + 1)
+        for inner_elem in elem:
+            _indent(inner_elem, level + 1)
         if not elem.tail or not elem.tail.strip():
             elem.tail = i
-    else:
-        if level and (not elem.tail or not elem.tail.strip()):
-            elem.tail = i
+    elif level and (not elem.tail or not elem.tail.strip()):
+        elem.tail = i
 
 
 class LHEInit(dict):
@@ -264,9 +259,9 @@ def tolhe(self):
         """
         # weightgroups to xml
         root = ET.Element("initrwgt")
-        for k, v in self["weightgroup"].items():
+        for _k, v in self["weightgroup"].items():
             weightgroup_elem = ET.SubElement(root, "weightgroup", **v["attrib"])
-            for key, value in v["weights"].items():
+            for _key, value in v["weights"].items():
                 weight_elem = ET.SubElement(
                     weightgroup_elem, "weight", **value["attrib"]
                 )
@@ -288,8 +283,7 @@ def tolhe(self):
     def __getitem__(self, key):
         if key not in self:
             return self["initInfo"][key]
-        else:
-            return super().__getitem__(key)
+        return super().__getitem__(key)
 
     # custom backwards compatibility set for dict
     def __setitem__(self, key, value):
@@ -404,7 +398,7 @@ def read_lhe_init(filepath):
     """
     initDict = {}
     with _extract_fileobj(filepath) as fileobj:
-        for event, element in ET.iterparse(fileobj, events=["start", "end"]):
+        for _event, element in ET.iterparse(fileobj, events=["start", "end"]):
             if element.tag == "init":
                 data = element.text.split("\n")[1:-1]
                 initDict["initInfo"] = LHEInitInfo.fromstring(data[0])
@@ -453,7 +447,7 @@ def read_lhe_init(filepath):
 def read_lhe(filepath):
     try:
         with _extract_fileobj(filepath) as fileobj:
-            for event, element in ET.iterparse(fileobj, events=["end"]):
+            for _event, element in ET.iterparse(fileobj, events=["end"]):
                 if element.tag == "event":
                     data = element.text.strip().split("\n")
                     eventdata, particles = data[0], data[1:]
@@ -495,7 +489,7 @@ def read_lhe_with_attributes(filepath):
     index_map = None
     try:
         with _extract_fileobj(filepath) as fileobj:
-            for event, element in ET.iterparse(fileobj, events=["end"]):
+            for _event, element in ET.iterparse(fileobj, events=["end"]):
                 if element.tag == "event":
                     eventdict = {}
                     data = element.text.strip().split("\n")
@@ -517,7 +511,7 @@ def read_lhe_with_attributes(filepath):
                                     read_lhe_init(filepath)
                                 )
                             for i, w in enumerate(sub.text.split()):
-                                if w and not index_map[i] in eventdict["weights"]:
+                                if w and index_map[i] not in eventdict["weights"]:
                                     eventdict["weights"][index_map[i]] = float(w)
                         if sub.tag == "rwgt":
                             for r in sub:
@@ -570,7 +564,7 @@ def write_lhe_file(lheinit, lheevents, filepath, gz=False, rwgt=True, weights=Fa
     Write the LHE file.
     """
     # if filepath suffix is gz, write as gz
-    if filepath.endswith(".gz") or filepath.endswith(".gzip") or gz:
+    if filepath.endswith((".gz", ".gzip")) or gz:
         with gzip.open(filepath, "wt") as f:
             f.write(write_lhe_string(lheinit, lheevents, rwgt=rwgt, weights=weights))
     else:

tests/test_lhe_reader.py

@@ -17,7 +17,7 @@
 )
 TEST_FILE_LHE_RWGT_WGT = skhep_testdata.data_path("pylhe-testfile-powheg-box-v2-W.lhe")
 TEST_FILES_LHE_POWHEG = [
-    skhep_testdata.data_path("pylhe-testfile-powheg-box-v2-%s.lhe" % (proc))
+    skhep_testdata.data_path(f"pylhe-testfile-powheg-box-v2-{proc}.lhe")
     for proc in ["Z", "W", "Zj", "trijet", "directphoton", "hvq"]
 ]
 
@@ -28,23 +28,21 @@ def testdata_gzip_file():
     tmp_path = Path(NamedTemporaryFile().name)
 
     # create what is basically pylhe-testfile-pr29.lhe.gz
-    with open(test_data, "rb") as readfile:
-        with gzip.open(tmp_path, "wb") as writefile:
-            shutil.copyfileobj(readfile, writefile)
+    with open(test_data, "rb") as readfile, gzip.open(tmp_path, "wb") as writefile:
+        shutil.copyfileobj(readfile, writefile)
     yield tmp_path
 
     # teardown
     os.remove(tmp_path)
 
 
-def test_gzip_open(tmpdir, testdata_gzip_file):
+def test_gzip_open(testdata_gzip_file):
     assert pylhe._extract_fileobj(TEST_FILE_LHE_v1)
     assert pylhe._extract_fileobj(testdata_gzip_file)
 
     # Needs path-like object, not a fileobj
-    with pytest.raises(TypeError):
-        with open(TEST_FILE_LHE_v1, "rb") as fileobj:
-            pylhe._extract_fileobj(fileobj)
+    with pytest.raises(TypeError), open(TEST_FILE_LHE_v1, "rb") as fileobj:
+        pylhe._extract_fileobj(fileobj)
 
     with open(TEST_FILE_LHE_v1, "rb") as fileobj:
         assert isinstance(pylhe._extract_fileobj(TEST_FILE_LHE_v1), type(fileobj))

tests/test_lhe_writer.py

@@ -9,7 +9,7 @@
 )
 TEST_FILE_LHE_RWGT_WGT = skhep_testdata.data_path("pylhe-testfile-powheg-box-v2-W.lhe")
 TEST_FILES_LHE_POWHEG = [
-    skhep_testdata.data_path("pylhe-testfile-powheg-box-v2-%s.lhe" % (proc))
+    skhep_testdata.data_path(f"pylhe-testfile-powheg-box-v2-{proc}.lhe")
     for proc in ["Z", "W", "Zj", "trijet", "directphoton", "hvq"]
 ]