Replace typing.Never with typing.NoReturn since Never wasn't introduced until Python 3.11

Author: tleonhardt

tests/test_cmd2.py

@@ -11,7 +11,7 @@
 from code import (
     InteractiveConsole,
 )
-from typing import Never
+from typing import NoReturn
 from unittest import (
     mock,
 )
@@ -512,7 +512,7 @@ def test_runcmds_plus_hooks_ctrl_c(base_app, capsys) -> None:
     """Test Ctrl-C while in runcmds_plus_hooks"""
     import types
 
-    def do_keyboard_interrupt(self, _) -> Never:
+    def do_keyboard_interrupt(self, _) -> NoReturn:
         raise KeyboardInterrupt('Interrupting this command')
 
     setattr(base_app, 'do_keyboard_interrupt', types.MethodType(do_keyboard_interrupt, base_app))
@@ -603,7 +603,7 @@ def test_system_exit_in_command(base_app, capsys) -> None:
 
     exit_code = 5
 
-    def do_system_exit(self, _) -> Never:
+    def do_system_exit(self, _) -> NoReturn:
         raise SystemExit(exit_code)
 
     setattr(base_app, 'do_system_exit', types.MethodType(do_system_exit, base_app))
@@ -619,7 +619,7 @@ def test_passthrough_exception_in_command(base_app) -> None:
 
     expected_err = "Pass me up"
 
-    def do_passthrough(self, _) -> Never:
+    def do_passthrough(self, _) -> NoReturn:
         wrapped_ex = OSError(expected_err)
         raise exceptions.PassThroughException(wrapped_ex=wrapped_ex)
 

tests/test_completion.py

@@ -8,7 +8,7 @@
 import enum
 import os
 import sys
-from typing import Never
+from typing import NoReturn
 from unittest import (
     mock,
 )
@@ -97,7 +97,7 @@ def complete_test_sort_key(self, text, line, begidx, endidx):
     def do_test_raise_exception(self, args) -> None:
         pass
 
-    def complete_test_raise_exception(self, text, line, begidx, endidx) -> Never:
+    def complete_test_raise_exception(self, text, line, begidx, endidx) -> NoReturn:
         raise IndexError("You are out of bounds!!")
 
     def do_test_multiline(self, args) -> None:

tests/test_plugin.py

@@ -4,7 +4,7 @@
 
 import argparse
 import sys
-from typing import Never
+from typing import NoReturn
 from unittest import (
     mock,
 )
@@ -273,7 +273,7 @@ def do_say(self, statement) -> None:
         """Repeat back the arguments"""
         self.poutput(statement)
 
-    def do_skip_postcmd_hooks(self, _) -> Never:
+    def do_skip_postcmd_hooks(self, _) -> NoReturn:
         self.poutput("In do_skip_postcmd_hooks")
         raise exceptions.SkipPostcommandHooks
 

tests/test_transcript.py

@@ -7,7 +7,7 @@
 import re
 import sys
 import tempfile
-from typing import Never
+from typing import NoReturn
 from unittest import (
     mock,
 )
@@ -90,7 +90,7 @@ def do_mumble(self, opts, arg) -> None:
     def do_nothing(self, statement) -> None:
         """Do nothing and output nothing"""
 
-    def do_keyboard_interrupt(self, _) -> Never:
+    def do_keyboard_interrupt(self, _) -> NoReturn:
         raise KeyboardInterrupt('Interrupting this command')