don't generate _version.py

use pkg metadata when installed from PyPI.
CirPy bundles can now adjust `__version__` accordingly because
it isn't indented in src.

also add a dummy setup.py for older versions of pip/python

Author: 2bndy5

.gitignore

@@ -33,7 +33,6 @@ __pycache__
 *.pyc
 build/
 dist/
-_version.py
 
 # Sphinx build-specific files
 _build

circuitpython_homie/__init__.py

@@ -22,11 +22,7 @@
 from adafruit_minimqtt.adafruit_minimqtt import MQTT, MMQTTException  # type: ignore
 
 
-try:
-    from ._version import __version__  # type: ignore
-except ImportError:
-    __version__ = "0.0.0+auto.0"
-
+__version__ = "0.0.0+auto.0"
 __repo__ = "https://github.com/2bndy5/CircuitPython_Homie.git"
 
 DEVICE_STATES = [

pyproject.toml

@@ -55,7 +55,6 @@ version_scheme= "no-guess-dev"
 # Test PyPI does not support local versions.
 local_scheme = "no-local-version"
 fallback_version = "0.0.0"
-write_to = "circuitpython_homie/_version.py"
 
 [tool.pytest.ini_options]
 minversion = "6.0"

setup.py

@@ -0,0 +1,4 @@
+"""All install info now exists in pyproject.toml"""
+from setuptools import setup
+
+setup()