fix: single-source version, gitignore typo, release tag-only trigger (#129)

- version dynamic from datamaxi/__version__.py (0.28.0); drops static dup
- .gitignore __pycache___ -> __pycache__/
- release.yml runs only on v* tag pushes

Closes #128

Author: martinkersner

.github/workflows/release.yml

@@ -1,6 +1,9 @@
 name: Publish Python 🐍 distribution 📦 to PyPI and TestPyPI
 
-on: push
+on:
+  push:
+    tags:
+      - 'v*'
 
 jobs:
   build:

.gitignore

@@ -1,7 +1,7 @@
 build
 dist
 datamaxi.egg-info/
-__pycache___
+__pycache__/
 *.pyc
 .DS_Store
 

datamaxi/__version__.py

@@ -1 +1 @@
-__version__ = "0.26.3"
+__version__ = "0.28.0"

pyproject.toml

@@ -1,6 +1,5 @@
 [project]
 name = "datamaxi"
-version = "0.28.0"
 authors = [
   { name="Bisonai", email="business@bisonai.com" },
 ]
@@ -17,10 +16,11 @@ classifiers = [
    "Programming Language :: Python :: 3.13",
    "Programming Language :: Python :: 3.14",
 ]
-dynamic = ["dependencies"]
+dynamic = ["dependencies", "version"]
 
 [tool.setuptools.dynamic]
 dependencies = {file = ["requirements/common.txt"]}
+version = {attr = "datamaxi.__version__.__version__"}
 
 [project.urls]
 Homepage = "https://github.com/bisonai/datamaxi-python"