build: test light-threads on all versions of Python

And also use more compact tox environment syntax throughout tox.init

Author: nedbat

tox.ini

@@ -20,7 +20,7 @@ extras =
 deps =
     -r requirements/pip.pip
     -r requirements/pytest.pip
-    py3{10,11}: -r requirements/light-threads.pip
+    py3{10-14}: -r requirements/light-threads.pip
 
 # Windows can't update the pip version with pip running, so use Python
 # to install things.
@@ -37,8 +37,8 @@ setenv =
     # environments and not others.  So by default, don't warn, and we'll enable
     # the warning in a handful of environments to catch the problems.
     PYTHONWARNDEFAULTENCODING=
-    py3{10,11,12,13,14}: PYTHONWARNDEFAULTENCODING=1
-    py3{10,11,12,13,14}: PYTHONWARNINGS=ignore::EncodingWarning:pip._internal.utils.subprocess
+    py3{10-14}: PYTHONWARNDEFAULTENCODING=1
+    py3{10-14}: PYTHONWARNINGS=ignore::EncodingWarning:pip._internal.utils.subprocess
     # Disable CPython's color output
     PYTHON_COLORS=0
 
@@ -59,7 +59,7 @@ commands =
     python -m pip install {env:COVERAGE_PIP_ARGS} -q -e .
     python igor.py test_with_core ctrace {posargs}
 
-    py3{12,13,14}{,t},anypy: python igor.py test_with_core sysmon {posargs}
+    py3{12-14}{,t},anypy: python igor.py test_with_core sysmon {posargs}
 
 [testenv:anypy]
 # $set_env.py: COVERAGE_ANYPY - The custom Python for "tox -e anypy"