drop python 3.6 support

python 3.6 reached end of life on 2021-12-23

testing/auto_namedtuple.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import collections
 
 

testing/fixtures.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import contextlib
 import os.path
 import shutil

testing/gen-languages-all

@@ -1,4 +1,6 @@
 #!/usr/bin/env python3
+from __future__ import annotations
+
 import sys
 
 LANGUAGES = [

testing/make-archives

@@ -1,4 +1,6 @@
 #!/usr/bin/env python3
+from __future__ import annotations
+
 import argparse
 import gzip
 import os.path
@@ -6,7 +8,6 @@ import shutil
 import subprocess
 import tarfile
 import tempfile
-from typing import Optional
 from typing import Sequence
 
 
@@ -69,7 +70,7 @@ def make_archive(name: str, repo: str, ref: str, destdir: str) -> str:
     return output_path
 
 
-def main(argv: Optional[Sequence[str]] = None) -> int:
+def main(argv: Sequence[str] | None = None) -> int:
     parser = argparse.ArgumentParser()
     parser.add_argument('--dest', default='pre_commit/resources')
     args = parser.parse_args(argv)

testing/resources/python_hooks_repo/foo.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import sys
 
 

testing/resources/python_hooks_repo/setup.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from setuptools import setup
 
 setup(

testing/resources/python_venv_hooks_repo/foo.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import sys
 
 

testing/resources/python_venv_hooks_repo/setup.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from setuptools import setup
 
 setup(

testing/util.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import contextlib
 import os.path
 import subprocess

testing/zipapp/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:bionic
+FROM ubuntu:focal
 RUN : \
     && apt-get update \
     && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
@@ -10,5 +10,5 @@ RUN : \
 
 ENV LANG=C.UTF-8 PATH=/venv/bin:$PATH
 RUN : \
-    && python3.6 -mvenv /venv \
+    && python3 -mvenv /venv \
     && pip install --no-cache-dir pip setuptools wheel no-manylinux --upgrade

testing/zipapp/entry

@@ -1,4 +1,6 @@
 #!/usr/bin/env python3
+from __future__ import annotations
+
 import os.path
 import shutil
 import stat
@@ -59,10 +61,7 @@ def main() -> int:
     if sys.platform == 'win32':  # https://bugs.python.org/issue19124
         import subprocess
 
-        if sys.version_info < (3, 7):  # https://bugs.python.org/issue25942
-            return subprocess.Popen(cmd).wait()
-        else:
-            return subprocess.call(cmd)
+        return subprocess.call(cmd)
     else:
         os.execvp(cmd[0], cmd)
 

testing/zipapp/make

@@ -1,4 +1,6 @@
 #!/usr/bin/env python3
+from __future__ import annotations
+
 import argparse
 import base64
 import hashlib

testing/zipapp/python

@@ -1,5 +1,7 @@
 #!/usr/bin/env python3
 """A shim executable to put dependencies on sys.path"""
+from __future__ import annotations
+
 import argparse
 import os.path
 import runpy
@@ -36,10 +38,7 @@ def main() -> int:
         if sys.platform == 'win32':  # https://bugs.python.org/issue19124
             import subprocess
 
-            if sys.version_info < (3, 7):  # https://bugs.python.org/issue25942
-                return subprocess.Popen(cmd).wait()
-            else:
-                return subprocess.call(cmd)
+            return subprocess.call(cmd)
         else:
             os.execvp(cmd[0], cmd)