Drop support for Python 3.9, 3.10, and 3.11.

Author: prwater

.github/workflows/unit.yml

@@ -16,9 +16,6 @@ jobs:
       fail-fast: false
       matrix:
         python-version:
-          - "3.9"
-          - "3.10"
-          - "3.11"
           - "3.12"
 
     steps:

build.xml

@@ -9,12 +9,39 @@
 
     <!-- Install virtual environment -->
     <target name="venv">
-        <delete dir="venv" quiet="true"/>
-        <delete file="poetry.lock" quiet="true"/>
-        <exec command="python3 -m venv venv" checkreturn="true" passthru="true"/>
-        <exec command="./venv/bin/python -m pip install --upgrade pip" checkreturn="true" passthru="true"/>
-        <exec command="./venv/bin/python -m pip install --upgrade poetry" checkreturn="true" passthru="true"/>
-        <exec command="./venv/bin/poetry install --no-root" passthru="true" checkreturn="true"/>
+        <exec executable="python3" checkreturn="true" passthru="true">
+            <arg value="-m"/>
+            <arg value="venv"/>
+            <arg value=".venv"/>
+        </exec>
+        <exec executable="./.venv/bin/python" checkreturn="true" passthru="true">
+            <arg value="-m"/>
+            <arg value="pip"/>
+            <arg value="install"/>
+            <arg value="--upgrade"/>
+            <arg value="pip"/>
+        </exec>
+        <exec executable="./.venv/bin/python" checkreturn="true" passthru="true">
+            <arg value="-m"/>
+            <arg value="pip"/>
+            <arg value="install"/>
+            <arg value="--upgrade"/>
+            <arg value="poetry"/>
+        </exec>
+        <exec executable="./.venv/bin/poetry" passthru="true" checkreturn="true">
+            <arg value="--ansi"/>
+            <arg value="lock"/>
+        </exec>
+        <exec executable="./.venv/bin/poetry" passthru="true" checkreturn="true">
+            <arg value="--ansi"/>
+            <arg value="install"/>
+            <arg value="--no-root"/>
+        </exec>
+        <exec executable="./.venv/bin/poetry" passthru="true" checkreturn="true">
+            <arg value="--ansi"/>
+            <arg value="show"/>
+            <arg value="--outdated"/>
+        </exec>
     </target>
 
     <!-- Creates a new version/release. -->
@@ -66,22 +93,22 @@
 
     <!-- Creates a new distribution using pyproject.toml -->
     <target name="dist">
-        <exec command="./venv/bin/poetry build" passthru="true" checkreturn="true"/>
+        <exec command="./.venv/bin/poetry build" passthru="true" checkreturn="true"/>
     </target>
 
     <!-- Uploads a distribution to PyPI -->
     <target name="upload">
-        <exec command="./venv/bin/poetry publish" passthru="true" checkreturn="true"/>
+        <exec command="./.venv/bin/poetry publish" passthru="true" checkreturn="true"/>
     </target>
 
     <!-- All steps for releasing a new version -->
     <target name="release" depends="version,dist,upload"/>
 
     <!-- Runs all unit tests-->
     <target name="unit">
-        <exec command="./venv/bin/python -m coverage run -m unittest discover -s test -p \*Test.py" passthru="true"
+        <exec command="./.venv/bin/python -m coverage run -m unittest discover -s test -p \*Test.py" passthru="true"
               checkreturn="true"/>
-        <exec command="./venv/bin/python -m coverage html" passthru="true" checkreturn="true"/>
+        <exec command="./.venv/bin/python -m coverage html" passthru="true" checkreturn="true"/>
     </target>
 
     <!-- Default target -->

pyproject.toml

@@ -8,9 +8,6 @@ classifiers = ["Development Status :: 5 - Production/Stable",
     "Intended Audience :: Developers",
     "License :: OSI Approved :: MIT License",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.9",
-    "Programming Language :: Python :: 3.10",
-    "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Topic :: Software Development :: Build Tools",
     "Topic :: Software Development :: Code Generators",
@@ -19,11 +16,11 @@ classifiers = ["Development Status :: 5 - Production/Stable",
 
 [tool.poetry.dependencies]
 cleo = "^2.1.0"
-pystratum-backend = "^2.0.4"
-python = "^3.9.0"
+pystratum-backend = "^2.1.0"
+python = "^3.12.0"
 
 [tool.poetry.group.dev.dependencies]
-coverage ="^5.3.0"
+coverage = "^7.5.1"
 
 [tool.poetry.scripts]
 pystratum = "pystratum_cli:main"