(core) Upgrade to Python 3.11

Summary: Replaced mentions of Python 3.9 with 3.11

Test Plan: this

Reviewers: paulfitz, georgegevoian

Reviewed By: paulfitz, georgegevoian

Subscribers: dsagal, georgegevoian, paulfitz

Differential Revision: https://phab.getgrist.com/D3980

sandbox/docker/Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.9
+FROM python:3.11
 
 COPY requirements3.txt /tmp/requirements3.txt
 

sandbox/gvisor/run.py

@@ -173,9 +173,9 @@ if not include_python2:
   # We expect python3 in /usr/bin or /usr/local/bin.
   candidates = [
     path
-    # Pick the most generic python if not matching python3.9.
+    # Pick the most generic python if not matching python3.11.
     # Sorry this is delicate because of restores, mounts, symlinks.
-    for pattern in ['python3.9', 'python3', 'python3*']
+    for pattern in ['python3.11', 'python3.10', 'python3.9', 'python3', 'python3*']
     for root in ['/usr/local', '/usr']
     for path in glob.glob(f'{root}/bin/{pattern}')
     if os.path.exists(path)

sandbox/requirements3.in

@@ -12,3 +12,4 @@ python-dateutil
 six
 sortedcontainers
 unittest-xml-reporting
+typing-extensions  # used by astroid before Python 3.11

sandbox/requirements3.txt

@@ -1,5 +1,5 @@
 #
-# This file is autogenerated by pip-compile with Python 3.9
+# This file is autogenerated by pip-compile with Python 3.11
 # by the following command:
 #
 #    pip-compile --output-file=core/sandbox/requirements3.txt core/sandbox/requirements3.in
@@ -48,7 +48,7 @@ sortedcontainers==2.4.0
 stack-data==0.5.1
     # via friendly-traceback
 typing-extensions==4.4.0
-    # via astroid
+    # via -r core/sandbox/requirements3.in
 unittest-xml-reporting==2.0.0
     # via -r core/sandbox/requirements3.in
 wrapt==1.15.0