chore: add Python .gitignore

[kilo-code-bot]

Adds a standard Python .gitignore from the GitHub gitignore template, preventing generated files (bytecode, lookup tables, build artifacts) from being tracked.

• Fixes M_lut.npy typo -> C_lut.npy (the file cplot.py actually loads)
• Prevents future __pycache__ files from being committed (the Cloud Agent auto-commit recently picked these up)

Summary by CodeRabbit

• Chores
  • Added comprehensive ignore rules for Python bytecode, build artifacts, virtual environments, test outputs, IDE files, caches, credentials, temporary files, and generated data.

[coderabbitai]

📝 Walkthrough

Walkthrough

The pull request adds 223 lines to .gitignore. The rules cover Python artifacts, environments, framework files, development-tool metadata, credentials, caches, and generated data.

Changes

Python project ignore rules

Layer / File(s)	Summary
Comprehensive ignore policy .gitignore	The file ignores Python build and test artifacts, framework outputs, package-manager environments, runtime files, IDE metadata, caches, secrets, and generated data. It preserves Pixi configuration and excludes the generated C_lut.npy lookup table.

Estimated code review effort: 1 (Trivial) | ~3 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the addition of a Python-focused .gitignore file.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches 💡 1

🛠️ Fix failing CI checks 💡

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch gitignore

---

_{Comment @coderabbitai help to get the list of available commands.}

[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In @.gitignore:
- Around line 222-223: Ensure the package includes or generates C_lut.npy before
complex_colormap imports cplot. Update the packaging/import flow around
complex_colormap/__init__.py, setup.py, and generation.py so clean installations
do not raise FileNotFoundError, while preserving normal cplot imports.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 13efb68c-55c7-401a-a9a3-119c15eae161

📥 Commits

Reviewing files that changed from the base of the PR and between 410aad7 and 8c3520d.

📒 Files selected for processing (1)

• .gitignore

[coderabbitai]

🩺 Stability & Availability | 🟠 Major | ⚡ Quick win

🧩 Analysis chain

🏁 Script executed:

#!/bin/bash
set -euo pipefail

rg -n -C 5 'C_lut\.npy|M_lut\.npy|np\.load|numpy\.load' complex_colormap/cplot.py

if git ls-files --error-unmatch -- C_lut.npy >/dev/null 2>&1; then
  echo "C_lut.npy is tracked."
else
  echo "C_lut.npy is not tracked; locate its generator or packaging path."
  rg -n -C 5 'C_lut\.npy|generate.*lut|lookup table' .
fi

Repository: endolith/complex_colormap

Length of output: 6727

---

🏁 Script executed:

#!/bin/bash
set -euo pipefail

printf '%s\n' '--- repository files ---'
git ls-files | sed -n '1,160p'

printf '%s\n' '--- packaging and build configuration ---'
for f in setup.py setup.cfg pyproject.toml MANIFEST.in requirements.txt requirements-dev.txt; do
  if [ -f "$f" ]; then
    echo "### $f"
    cat -n "$f"
  fi
done

printf '%s\n' '--- generation entry point ---'
sed -n '115,190p' complex_colormap/generation.py

printf '%s\n' '--- package references ---'
rg -n -C 3 'generation|C_lut\.npy|package_data|data_files|include_package_data|MANIFEST' .

Repository: endolith/complex_colormap

Length of output: 6658

---

🏁 Script executed:

#!/bin/bash
set -euo pipefail

python3 - <<'PY'
import ast
from pathlib import Path
import subprocess

tracked = subprocess.run(
    ["git", "ls-files", "--error-unmatch", "--", "C_lut.npy"],
    capture_output=True, text=True
).returncode == 0

setup = Path("setup.py").read_text()
init_tree = ast.parse(Path("complex_colormap/__init__.py").read_text())
generation_tree = ast.parse(Path("complex_colormap/generation.py").read_text())

setup_calls = [
    node for node in ast.walk(ast.parse(setup))
    if isinstance(node, ast.Call)
    and isinstance(node.func, ast.Name)
    and node.func.id == "setup"
]
setup_call = setup_calls[0]
keywords = {kw.arg: ast.unparse(kw.value) for kw in setup_call.keywords if kw.arg}
imports = [
    alias.name for node in init_tree.body
    if isinstance(node, ast.ImportFrom) and node.module == "."
    for alias in node.names
]
main_guards = [
    node for node in generation_tree.body
    if isinstance(node, ast.If)
    and ast.dump(node.test) == ast.dump(
        ast.Compare(
            left=ast.Name(id="__name__", ctx=ast.Load()),
            ops=[ast.Eq()],
            comparators=[ast.Constant(value="__main__")]
        )
    )
]

save_calls = [
    ast.unparse(node)
    for node in ast.walk(generation_tree)
    if isinstance(node, ast.Call)
    and isinstance(node.func, ast.Attribute)
    and isinstance(node.func.value, ast.Name)
    and node.func.value.id == "np"
    and node.func.attr == "save"
]

print(f"tracked_C_lut={tracked}")
print(f"setup_package_data={keywords.get('package_data', '<absent>')}")
print(f"setup_include_package_data={keywords.get('include_package_data', '<absent>')}")
print(f"init_imports={imports}")
print(f"generation_main_guard_count={len(main_guards)}")
print(f"generation_save_calls={save_calls}")
PY

printf '%s\n' '--- Makefile targets ---'
cat -n Makefile

Repository: endolith/complex_colormap

Length of output: 1397

---

Include or generate C_lut.npy before importing cplot.

C_lut.npy is untracked and setup.py does not package it. complex_colormap/__init__.py imports cplot before generation, while generation.py creates the file only under its __main__ block. A clean install therefore fails with FileNotFoundError.

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In @.gitignore around lines 222 - 223, Ensure the package includes or generates
C_lut.npy before complex_colormap imports cplot. Update the packaging/import
flow around complex_colormap/__init__.py, setup.py, and generation.py so clean
installations do not raise FileNotFoundError, while preserving normal cplot
imports.