Add experimental support for using Numba to speed things up

.github/workflows/code-checks.yaml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+        python-version: ["3.12", "3.13", "3.14"]
 
     steps:
 

ChangeLog.md

@@ -1,5 +1,14 @@
 # Complexitty ChangeLog
 
+## Unreleased
+
+**Released: WiP**
+
+- Dropped support for Python 3.10 and Python 3.11. ([#36](https://github.com/davep/complexitty/pull/36))
+- Added optional support for using [Numba](https://numba.pydata.org) to
+  speed up the calculations.
+  ([#36](https://github.com/davep/complexitty/pull/36))
+
 ## v1.0.0
 
 **Released: 2025-10-03**

pyproject.toml

@@ -12,7 +12,7 @@ dependencies = [
     "xdg-base-dirs>=6.0.2",
 ]
 readme = "README.md"
-requires-python = ">= 3.10"
+requires-python = ">= 3.12"
 license = "GPL-3.0-or-later"
 keywords = [
     "terminal",
@@ -29,8 +29,6 @@ classifiers = [
     "Intended Audience :: End Users/Desktop",
     "Intended Audience :: Science/Research",
     "Operating System :: OS Independent",
-    "Programming Language :: Python :: 3.10",
-    "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: 3.14",
@@ -50,11 +48,16 @@ Source = "https://github.com/davep/complexitty"
 Issues = "https://github.com/davep/complexitty/issues"
 Discussions = "https://github.com/davep/complexitty/discussions"
 
+[project.optional-dependencies]
+faster = [
+    "numba>=0.59.0",
+]
+
 [project.scripts]
 complexitty = "complexitty.__main__:main"
 
 [build-system]
-requires = ["uv_build>=0.8.11,<0.9.0"]
+requires = ["uv_build>=0.9.4"]
 build-backend = "uv_build"
 
 [tool.uv]

src/complexitty/mandelbrot/calculator.py

@@ -1,7 +1,30 @@
 """The code for calculating the Mandelbrot set."""
 
+##############################################################################
+# Python imports.
+from collections.abc import Callable
+from typing import cast
+
+##############################################################################
+# Set up for [faster] support.
+
+type MandelbrotCalculator = Callable[[float, float, float, int], int]
+"""Type of the Mandelbrot calculator function."""
+
+try:
+    from numba import jit  # type: ignore[import-not-found]
+
+    def _maybe_faster(calculator: MandelbrotCalculator) -> MandelbrotCalculator:
+        return cast(MandelbrotCalculator, jit(nopython=True)(calculator))
+
+except ImportError:
+
+    def _maybe_faster(calculator: MandelbrotCalculator) -> MandelbrotCalculator:
+        return calculator
+
 
 ##############################################################################
+@_maybe_faster
 def mandelbrot(x: float, y: float, multibrot: float, max_iteration: int) -> int:
     """Return the Mandelbrot calculation for the given point.
 

src/complexitty/mandelbrot/colouring.py

@@ -4,14 +4,14 @@
 # Python imports.
 from collections.abc import Callable
 from functools import lru_cache
-from typing import Final, TypeAlias
+from typing import Final
 
 ##############################################################################
 # Textual imports.
 from textual.color import Color, Gradient
 
 ##############################################################################
-ColourMap: TypeAlias = Callable[[int, int], Color]
+type ColourMap = Callable[[int, int], Color]
 """Type for a colour map."""
 
 

src/complexitty/mandelbrot/widget.py

@@ -9,6 +9,10 @@
 from dataclasses import dataclass
 from time import monotonic
 
+##############################################################################
+# Typing extension imports.
+from typing import Self
+
 ##############################################################################
 # Textual imports.
 from textual import on
@@ -20,10 +24,6 @@
 # Textual-canvas imports.
 from textual_canvas import Canvas
 
-##############################################################################
-# Typing extension imports.
-from typing_extensions import Self
-
 ##############################################################################
 # Local imports.
 from .calculator import mandelbrot

src/complexitty/screens/main.py

@@ -4,9 +4,11 @@
 # Python imports.
 from argparse import Namespace
 from collections import deque
+from functools import cache
+from importlib.util import find_spec
 from math import floor, log10
 from re import Pattern, compile
-from typing import Final, NamedTuple, TypeAlias
+from typing import Final, NamedTuple
 
 ##############################################################################
 # Textual imports.
@@ -78,7 +80,18 @@ class Situation(NamedTuple):
 
 
 ##############################################################################
-PlotHistory: TypeAlias = deque[Situation]
+@cache
+def _faster_label() -> str:
+    """Get the label that gives our faster status.
+
+    Returns:
+       The labelto show the faster status.
+    """
+    return " | [b]Faster[/]" if find_spec("numba") else ""
+
+
+##############################################################################
+PlotHistory = deque[Situation]
 """Type of the plot history."""
 
 
@@ -217,7 +230,7 @@ def _update_situation(self, message: Mandelbrot.Plotted) -> None:
         message.mandelbrot.border_subtitle = (
             f"{message.mandelbrot.multibrot:0.2f} multibrot | "
             f"{message.mandelbrot.max_iteration:0.2f} iterations | "
-            f"{message.elapsed:0.4f} seconds"
+            f"{message.elapsed:0.4f} seconds{_faster_label()}"
         )
 
     def _remember(self) -> None: