feat: drop support for 2.7 virtual environments

releasenotes/notes/drop-27-virtualenv-0fa3b60b14045781.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    In order to support Python 3.12, we are bumping the ``virtualenv`` dependency and thus dropping support for Python 2.7.

riot/riot.py

@@ -631,14 +631,6 @@ def prepare(
                     deps_venv_path = venv_path + "_deps"
                     if not Path(deps_venv_path).exists():
                         py.create_venv(recreate=False, path=deps_venv_path)
-                        if py.version_info() < (3,):
-                            # Use the same binary. This is necessary for Python 2.7
-                            deps_bin = (
-                                Path(deps_venv_path) / "bin" / "python"
-                            ).resolve()
-                            venv_bin = (Path(venv_path) / "bin" / "python").resolve()
-                            deps_bin.unlink()
-                            deps_bin.symlink_to(venv_bin)
                 Session.run_cmd_venv(deps_venv_path, cmd, env=env)
             except CmdFailure as e:
                 raise CmdFailure(

setup.py

@@ -29,7 +29,7 @@
     install_requires=[
         "dataclasses; python_version<'3.7'",
         "click>=7",
-        "virtualenv<=20.20.0",
+        "virtualenv",
         "rich",
         "pexpect",
         "packaging",

tests/data/diff_pys_riotfile.py

@@ -6,7 +6,7 @@
             name="test",
             command="exit 0",
             # DEV: purposely out of order so we can verify sorting in tests
-            pys=["3.5", "3.8", "3.6", "3.9", "3.7", "2.7"],
+            pys=["3.5", "3.8", "3.6", "3.9", "3.7"],
             venvs=[
                 Venv(
                     pkgs={"pytest": ["==5.4.3", ""]},

tests/test_cli.py

@@ -96,7 +96,7 @@ def test_list_with_python(cli: click.testing.CliRunner) -> None:
         with with_riotfile(cli, "empty_riotfile.py"):
             result = cli.invoke(
                 riot.cli.main,
-                ["list", "--python", "3.6", "-p", "3.8", "--python", "2.7"],
+                ["list", "--python", "3.6", "-p", "3.8"],
             )
             # Success, but no output because we don't have a matching pattern
             assert result.exit_code == 0
@@ -106,7 +106,6 @@ def test_list_with_python(cli: click.testing.CliRunner) -> None:
             assert list_venvs.call_args.kwargs["pythons"] == (
                 Interpreter("3.6"),
                 Interpreter("3.8"),
-                Interpreter("2.7"),
             )
 
 
@@ -126,7 +125,7 @@ def test_list_with_interpreters_only(cli: click.testing.CliRunner) -> None:
     with with_riotfile(cli, "diff_pys_riotfile.py"):
         result = cli.invoke(riot.cli.main, ["list", "--interpreters"])
         assert result.exit_code == 0, result.stdout
-        assert result.stdout == "2.7\n3.5\n3.6\n3.7\n3.8\n3.9\n"
+        assert result.stdout == "3.5\n3.6\n3.7\n3.8\n3.9\n"
 
 
 def test_list_with_hash_only(cli: click.testing.CliRunner) -> None:
@@ -147,7 +146,7 @@ def test_list_with_hash_only(cli: click.testing.CliRunner) -> None:
         assert result.exit_code == 0, result.stdout
         assert (
             result.stdout
-            == "156e0a3\n175f9ae\n1a1f742\n1f0f227\n524376c\n60d413e\n61b42ab\n83b22e0\n89d1e7a\n982a4b5\nb1c318a\nbdc1729\n"
+            == "156e0a3\n175f9ae\n1a1f742\n1f0f227\n524376c\n61b42ab\n83b22e0\n89d1e7a\n982a4b5\nb1c318a\n"
         )