chore: modernize build backend and require Python 3.8+

.github/workflows/pythonpublish.yml

@@ -43,4 +43,4 @@ jobs:
         name: artifact
         path: dist
 
-    - uses: pypa/gh-action-pypi-publish@v1.10.3
+    - uses: pypa/gh-action-pypi-publish@release/v1

.github/workflows/pythontests.yml

@@ -7,26 +7,25 @@ on:
   push:
     branches: [ master ]
   pull_request:
-    branches: [ master ]
 
 jobs:
   test:
 
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
 
     steps:
     - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v3
       with:
         python-version: ${{ matrix.python-version }}
+    - name: Setup uv
+      uses: astral-sh/setup-uv@v3
     - name: Install dependencies
-      run: python -m pip install -e .[test,boost,uproot,rich]
-    - name: Install optional dependencies for tests
-      run: python -m pip install pandas
+      run: uv pip install --system -e .[test,boost,uproot,rich] pandas
     - name: Run tests
       run: python -m pytest -s
     - name: Run CLI
@@ -50,7 +49,7 @@ jobs:
     - uses: actions/checkout@v3
     - uses: actions/setup-python@v3
       with:
-        python-version: '3.9'
+        python-version: '3.x'
     - uses: pre-commit/[email protected]
       with:
         extra_args: --all-files --hook-stage manual

.pre-commit-config.yaml

@@ -3,11 +3,6 @@ ci:
     # Is still tested in the GitHub CI, so save to just disable here
     skip: [mypy]
 
-default_language_version:
-    # force all unspecified python hooks to run python3.9
-    # Latest version that can easily be isntalled on Ubuntu 20.04 LTS
-    python: python3.9
-
 repos:
 - repo: https://github.com/pre-commit/pre-commit-hooks
   rev: "v5.0.0"
@@ -23,40 +18,12 @@ repos:
   - id: requirements-txt-fixer
   - id: trailing-whitespace
 
-- repo: https://github.com/PyCQA/isort
-  rev: "5.13.2"
-  hooks:
-  - id: isort
-    name: isort (python)
-
 - repo: https://github.com/astral-sh/ruff-pre-commit
   rev: "v0.7.0"
   hooks:
   - id: ruff
     args: [--fix, --show-fixes]
-
-- repo: https://github.com/pre-commit/pygrep-hooks
-  rev: v1.10.0
-  hooks:
-  - id: python-use-type-annotations
-
-- repo: https://github.com/asottile/setup-cfg-fmt
-  rev: "v2.6.0"
-  hooks:
-  - id: setup-cfg-fmt
-
-- repo: https://github.com/asottile/pyupgrade
-  rev: "v3.18.0"
-  hooks:
-  - id: pyupgrade
-    args: ["--py36-plus"]
-
-- repo: https://github.com/pycqa/flake8
-  rev: "7.1.1"
-  hooks:
-  - id: flake8
-    exclude: (docs/conf.py)|(tests/.*)
-    additional_dependencies: [flake8-bugbear, flake8-print]
+  - id: ruff-format
 
 - repo: https://github.com/pre-commit/mirrors-mypy
   rev: "v1.11.2"
@@ -65,9 +32,3 @@ repos:
     files: histoprint
     args: []
     additional_dependencies: [numpy, types-click, uhi, rich]
-
-- repo: https://github.com/mgedmin/check-manifest
-  rev: "0.50"
-  hooks:
-  - id: check-manifest
-    stages: [manual]

histoprint/cli.py

@@ -8,7 +8,7 @@
 import numpy as np
 
 import histoprint as hp
-import histoprint.formatter as formatter
+from histoprint import formatter
 
 
 @click.command()
@@ -124,27 +124,26 @@ def histoprint(infile, **kwargs):
         try:
             data_handle.seek(0)
             _histoprint_txt(data_handle, **kwargs)
-            exit(0)
+            return
         except ValueError:
             pass
 
         # Try to interpret file as CSV file
         try:
             data_handle.seek(0)
             _histoprint_csv(data_handle, **kwargs)
-            exit(0)
+            raise SystemExit(0)
         except ImportError:
             click.echo("Cannot try CSV file format. Pandas module not found.", err=True)
 
     # Try to interpret file as ROOT file
     try:
         _histoprint_root(infile, **kwargs)
-        exit(0)
+        return
     except ImportError:
         pass
 
-    click.echo("Could not interpret file format.", err=True)
-    exit(1)
+    raise click.FileError(infile, "Could not interpret the file format")
 
 
 def _bin_edges(kwargs, data):
@@ -180,7 +179,7 @@ def _histoprint_txt(infile, **kwargs):
         except Exception as e:
             click.echo("Error interpreting the cut string:", err=True)
             click.echo(e, err=True)
-            exit(1)
+            raise SystemExit(1) from None
 
     # Interpret field numbers
     fields = kwargs.pop("fields", [])
@@ -189,12 +188,12 @@ def _histoprint_txt(infile, **kwargs):
             fields = [int(f) for f in fields]
         except ValueError:
             click.echo("Fields for a TXT file must be integers.", err=True)
-            exit(1)
+            raise SystemExit(1) from None
         try:
             data = data[fields]
         except KeyError:
             click.echo("Field out of bounds.", err=True)
-            exit(1)
+            raise SystemExit(1) from None
 
     # Interpret bins
     bins = _bin_edges(kwargs, data)
@@ -222,7 +221,7 @@ def _histoprint_csv(infile, **kwargs):
         except Exception as e:
             click.echo("Error interpreting the cut string:", err=True)
             click.echo(e, err=True)
-            exit(1)
+            raise SystemExit(1) from None
 
     # Interpret field numbers/names
     fields = list(kwargs.pop("fields", []))
@@ -231,7 +230,7 @@ def _histoprint_csv(infile, **kwargs):
             data = data[fields]
         except KeyError:
             click.echo("Unknown column name.", err=True)
-            exit(1)
+            raise SystemExit(1) from None
 
     # Get default columns labels
     if kwargs.get("labels", ("",)) == ("",):
@@ -276,7 +275,7 @@ def _histoprint_root(infile, **kwargs):
     if len(fields) == 0:
         click.echo("Must specify at least one field for ROOT files.", err=True)
         click.echo(F.keys(), err=True)
-        exit(1)
+        raise SystemExit(1)
 
     # Get default columns labels
     if kwargs.get("labels", ("",)) == ("",):
@@ -317,11 +316,11 @@ def _histoprint_root(infile, **kwargs):
                     f"Could not find key '{key}'. Possible values: {branch.keys()}",
                     err=True,
                 )
-                exit(1)
+                raise SystemExit(1) from None
             # Has `arrays` method?
             if hasattr(branch, "arrays"):
                 # Found it
-                path = "/".join(splitfield[i + 1:])
+                path = "/".join(splitfield[i + 1 :])
                 if branch in trees:
                     tree_fields[trees.index(branch)].append(
                         {"label": label, "path": path}
@@ -350,7 +349,7 @@ def _histoprint_root(infile, **kwargs):
             except up.KeyInFileError as e:
                 click.echo(e, err=True)
                 click.echo(f"Possible keys: {tree.keys()}", err=True)
-                exit(1)
+                raise SystemExit(1) from None
 
         # Cut on values
         if cut is not None:
@@ -359,11 +358,11 @@ def _histoprint_root(infile, **kwargs):
             except up.KeyInFileError as e:
                 click.echo(e, err=True)
                 click.echo(f"Possible keys: {tree.keys()}", err=True)
-                exit(1)
+                raise SystemExit(1) from None
             except Exception as e:
                 click.echo("Error interpreting the cut string:", err=True)
                 click.echo(e, err=True)
-                exit(1)
+                raise SystemExit(1) from None
 
             for i in range(len(d)):
                 d[i] = d[i][index]

histoprint/formatter.py

@@ -106,7 +106,7 @@ def substitute_character(char, compose):
         subs = {
             "|": "\u2502",
             "=": "\u2550",
-            "#": "\u256A",
+            "#": "\u256a",
             "\\": "\u20e5",
             "/": "\u20eb",
             "X": "\u20e5\u20eb",
@@ -293,18 +293,17 @@ def format_bin(self, top, bottom, counts, width=1):
                             Hixel(s, fg, bg, self.use_color, self.compose)
                             for _ in range(h)
                         ]
+                    # Overlay histograms
+                    elif h > len(line):
+                        for hix in line:
+                            hix.add(s, fg, bg)
+                        line += [
+                            Hixel(s, fg, bg, self.use_color, self.compose)
+                            for _ in range(h - len(line))
+                        ]
                     else:
-                        # Overlay histograms
-                        if h > len(line):
-                            for hix in line:
-                                hix.add(s, fg, bg)
-                            line += [
-                                Hixel(s, fg, bg, self.use_color, self.compose)
-                                for _ in range(h - len(line))
-                            ]
-                        else:
-                            for hix in line[:h]:
-                                hix.add(s, fg, bg)
+                        for hix in line[:h]:
+                            hix.add(s, fg, bg)
 
             for hix in line:
                 bin_string += hix.render()
@@ -527,15 +526,15 @@ def summarize(self, counts, top, bottom, legend_only=False):
         # Second line: Total
         summary += " " * pad + "Tot:"
         for c, w in zip(counts, label_widths):
-            tot = np.sum(c)
+            tot = float(np.sum(c))
             summary += f" {tot: .2e}" + " " * (w - 10)
         summary += "\n"
 
         # Third line: Average
         summary += " " * pad + "Avg:"
         for c, w in zip(counts, label_widths):
             try:
-                average = np.average(bin_values, weights=c)
+                average = float(np.average(bin_values, weights=c))
             except ZeroDivisionError:
                 average = np.nan
             summary += f" {average: .2e}" + " " * (w - 10)
@@ -545,7 +544,7 @@ def summarize(self, counts, top, bottom, legend_only=False):
         summary += " " * pad + "Std:"
         for c, w in zip(counts, label_widths):
             try:
-                average = np.average(bin_values, weights=c)
+                average = float(np.average(bin_values, weights=c))
                 std = np.sqrt(np.average((bin_values - average) ** 2, weights=c))
             except ZeroDivisionError:
                 std = np.nan

histoprint/rich.py

@@ -2,7 +2,7 @@
 
 from rich.text import Text
 
-import histoprint.formatter as formatter
+from histoprint import formatter
 
 __all__ = ["RichHistogram"]
 

histoprint/version.pyi

@@ -0,0 +1 @@
+version: str

noxfile.py

@@ -2,9 +2,14 @@
 
 import nox
 
-ALL_PYTHONS = ["3.6", "3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+nox.needs_version = ">=2024.4.15"
+nox.options.default_venv_backend = "uv|virtualenv"
 
-nox.options.sessions = ["lint", "tests"]
+ALL_PYTHONS = [
+    c.split()[-1]
+    for c in nox.project.load_toml("pyproject.toml")["project"]["classifiers"]
+    if c.startswith("Programming Language :: Python :: 3.")
+]
 
 
 @nox.session
@@ -16,7 +21,7 @@ def lint(session):
     session.run("pre-commit", "run", "--all-files", *session.posargs)
 
 
-@nox.session(python=ALL_PYTHONS, reuse_venv=True)
+@nox.session(python=ALL_PYTHONS)
 def tests(session):
     """
     Run the unit and regular tests.
@@ -25,7 +30,7 @@ def tests(session):
     session.run("pytest", "-s", *session.posargs)
 
 
-@nox.session
+@nox.session(default=False)
 def build(session):
     """
     Build an SDist and wheel.