Added PassThroughException to __init__.py imports. (#1194)

Co-authored-by: Todd Leonhardt <todd.leonhardt@gmail.com>

Author: kmvanbrunt

CHANGELOG.md

@@ -2,7 +2,8 @@
 * Bug Fixes
   * Fixed issue in `ansi.async_alert_str()` which would raise `IndexError` if prompt was blank.
 * Enhancements
-  *  Added broader exception handling when enabling clipboard functionality via `pyperclip`.
+  * Added broader exception handling when enabling clipboard functionality via `pyperclip`.
+  * Added `PassThroughException` to `__init__.py` imports.
 
 ## 2.3.3 (November 29, 2021)
 * Enhancements

cmd2/__init__.py

@@ -56,7 +56,13 @@
 from .command_definition import CommandSet, with_default_category
 from .constants import COMMAND_NAME, DEFAULT_SHORTCUTS
 from .decorators import with_argument_list, with_argparser, with_category, as_subcommand_to
-from .exceptions import Cmd2ArgparseError, CommandSetRegistrationError, CompletionError, SkipPostcommandHooks
+from .exceptions import (
+    Cmd2ArgparseError,
+    CommandSetRegistrationError,
+    CompletionError,
+    PassThroughException,
+    SkipPostcommandHooks,
+)
 from . import plugin
 from .parsing import Statement
 from .py_bridge import CommandResult