drop 3.8 and 3.9, add 3.11

Author: drbenvincent

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10"]
+        python-version: ["3.10", "3.11"]
 
     steps:
       - uses: actions/checkout@v4
@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10"]
+        python-version: ["3.10", "3.11"]
 
     steps:
       - uses: actions/checkout@v4

pyproject.toml

@@ -18,7 +18,7 @@ description = "Causal inference for quasi-experiments in Python"
 readme = "README.md"
 license = { file = "LICENSE" }
 authors = [{ name = "Ben Vincent", email = "ben.vincent@pymc-labs.com" }]
-requires-python = ">=3.8"
+requires-python = ">=3.10"
 
 # This field lists other packages that your project depends on to run.
 # Any package you put here will be installed by pip when your project is
@@ -115,5 +115,5 @@ badge-format = "svg"
 
 [tool.ruff.lint]
 extend-select = [
-  "I",  # isort
+    "I", # isort
 ]