Require 3.7 as minimal Python version

Author: bittner

cli_test_helpers/commands.py

@@ -2,14 +2,9 @@
 Useful commands for writing tests for your CLI tool.
 """
 
-from sys import version_info
+from subprocess import run
 from types import SimpleNamespace as Namespace
 
-if version_info < (3, 7):
-    from subprocess import PIPE, run
-else:
-    from subprocess import run
-
 __all__ = []
 
 
@@ -20,12 +15,7 @@ def shell(command, **kwargs):
     This is a better version of ``os.system()`` that captures output and
     returns a convenient namespace object.
     """
-    if version_info < (3, 7):
-        completed = run(
-            command, shell=True, stdout=PIPE, stderr=PIPE, check=False, **kwargs
-        )
-    else:
-        completed = run(command, shell=True, capture_output=True, check=False, **kwargs)
+    completed = run(command, shell=True, capture_output=True, check=False, **kwargs)
 
     return Namespace(
         exit_code=completed.returncode,

pyproject.toml

@@ -20,6 +20,7 @@ classifiers = [
   "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
+  "Programming Language :: Python :: 3 :: Only",
   "Programming Language :: Python :: 3.7",
   "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
@@ -38,6 +39,7 @@ keywords = [
   "testing",
   "helpers",
 ]
+requires-python = ">=3.7"
 
 [project.urls]
 homepage = "https://github.com/painless-software/python-cli-test-helpers"
@@ -65,12 +67,10 @@ extend-ignore = [
     "D205",
     "D212",
     "Q000",
-    "UP022",  # Python < 3.7 only (`stderr=PIPE`)
-    "UP036",  # Python < 3.7 only
 ]
 
 [tool.ruff.lint.per-file-ignores]
-"cli_test_helpers/commands.py" = ["COM812", "S602"]
+"cli_test_helpers/commands.py" = ["S602"]
 "tests/*.py" = ["D400", "INP001", "S101"]
 
 [tool.setuptools.packages.find]

tox.ini

@@ -14,7 +14,6 @@ envlist =
 [testenv]
 description = Unit tests
 deps =
-    py3{9,10,11,12}: setuptools>=50
     coverage[toml]
     pytest
 commands =