Merge pull request #1610 from consideRatio/pr/require-py38

breaking: require Python 3.8, from Python 3.6

Author: consideRatio

.pre-commit-config.yaml

@@ -15,7 +15,7 @@ repos:
     hooks:
       - id: pyupgrade
         args:
-          - --py37-plus
+          - --py38-plus
 
   # Autoformat: Python code
   - repo: https://github.com/psf/black

helm-chart/binderhub/files/binderhub_config.py

@@ -6,7 +6,7 @@
 yaml = YAML(typ="safe")
 
 # memoize so we only load config once
-@lru_cache()
+@lru_cache
 def _load_values():
     """Load configuration from disk
 

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.black]
 # target-version should be all supported versions
-target-version = ['py37', 'py38', 'py39', 'py310']
+target-version = ["py38", "py39", "py310", "py311"]
 
 [tool.isort]
 profile = "black"

setup.py

@@ -42,7 +42,7 @@
     name="binderhub",
     version=versioneer.get_version(),
     cmdclass=versioneer.get_cmdclass(cmdclass),
-    python_requires=">=3.6",
+    python_requires=">=3.8",
     author="Project Jupyter Contributors",
     author_email="[email protected]",
     license="BSD",