Enable ruff BLE ruleset

Author: tleonhardt

cmd2/cmd2.py

@@ -2255,7 +2255,7 @@ def complete(  # type: ignore[override]
                 ansi.style_aware_write(sys.stdout, '\n' + err_str + '\n')
                 rl_force_redisplay()
             return None
-        except Exception as ex:
+        except Exception as ex:  # noqa: BLE001
             # Insert a newline so the exception doesn't print in the middle of the command line being tab completed
             self.perror()
             self.pexcept(ex)
@@ -2562,7 +2562,7 @@ def onecmd_plus_hooks(
             stop = True
         except PassThroughException as ex:
             raise ex.wrapped_ex
-        except Exception as ex:
+        except Exception as ex:  # noqa: BLE001
             self.pexcept(ex)
         finally:
             try:
@@ -2576,7 +2576,7 @@ def onecmd_plus_hooks(
                 stop = True
             except PassThroughException as ex:
                 raise ex.wrapped_ex
-            except Exception as ex:
+            except Exception as ex:  # noqa: BLE001
                 self.pexcept(ex)
 
         return stop
@@ -4131,7 +4131,7 @@ def do_set(self, args: argparse.Namespace) -> None:
                 try:
                     orig_value = settable.get_value()
                     settable.set_value(utils.strip_quotes(args.value))
-                except Exception as ex:
+                except ValueError as ex:
                     self.perror(f"Error setting {args.param}: {ex}")
                 else:
                     self.poutput(f"{args.param} - was: {orig_value!r}\nnow: {settable.get_value()!r}")
@@ -4425,7 +4425,7 @@ def py_quit() -> None:
             if py_code_to_run:
                 try:
                     interp.runcode(py_code_to_run)  # type: ignore[arg-type]
-                except BaseException:
+                except BaseException:  # noqa: BLE001
                     # We don't care about any exception that happened in the Python code
                     pass
 
@@ -4448,7 +4448,7 @@ def py_quit() -> None:
                     # Since quit() or exit() raise an EmbeddedConsoleExit, interact() exits before printing
                     # the exitmsg. Therefore, we will not provide it one and print it manually later.
                     interp.interact(banner=banner, exitmsg='')
-                except BaseException:
+                except BaseException:  # noqa: BLE001
                     # We don't care about any exception that happened in the interactive console
                     pass
                 finally:

examples/python_scripting.py

@@ -77,7 +77,7 @@ def do_cd(self, arglist) -> None:
         else:
             try:
                 os.chdir(path)
-            except Exception as ex:
+            except Exception as ex:  # noqa: BLE001
                 err = f'{ex}'
             else:
                 self.poutput(f'Successfully changed directory to {path}')

pyproject.toml

@@ -162,7 +162,7 @@ select = [
     # "ARG", # flake8-unused-arguments (functions or methods with arguments that are never used)
     "ASYNC", # flake8-async (async await bugs)
     # "B", # flake8-bugbear (various likely bugs and design issues)
-    # "BLE", # flake8-blind-except (force more specific exception types than just Exception)
+    "BLE", # flake8-blind-except (force more specific exception types than just Exception)
     "C4",  # flake8-comprehensions (warn about things that could be written as a comprehensions but aren't)
     "C90", # McCabe cyclomatic complexity (warn about functions that are too complex)
     "COM", # flake8-commas (forces commas at the end of every type of iterable/container

tests/test_cmd2.py

@@ -771,7 +771,7 @@ def test_pipe_to_shell_error(base_app) -> None:
     #   ValueError for headless Linux systems without Gtk installed
     #   AssertionError can be raised by paste_klipper().
     #   PyperclipException for pyperclip-specific exceptions
-except Exception:
+except Exception:  # noqa: BLE001
     can_paste = False
 else:
     can_paste = True