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Fix showing SystemExit exception raise inside except handler (#14503)...
Fix showing SystemExit exception raise inside except handler (#14503) Doing something like this: ```python try: 5 / 0 except Exception as e: raise SystemExit ``` was hitting an error inside UltraTB, creating a long traceback of its internals (which, ironically, UltraTB itself then displays correctly :-). `ListTB.get_exception_only()` calls the `ListTB.structured_traceback()` method *specifically* - even if `self` is a subclass, it won't use the subclass's method. However, the exception chaining in that method uses recursion by calling `self.structured_traceback()`, which will use a subclass's method. Tuples were added as an option there to support exception chaining, but not all of the machinery in connected classes expects a tuple. This just skips the exception chaining logic for the `etb=None` case, when we're showing the exception only. I'm not sure this is necessarily the best fix, but I didn't want to spend too much time following code around a module that's old enough to vote. Closes #12104

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test_shellapp.py
56 lines | 1.8 KiB | text/x-python | PythonLexer
# -*- coding: utf-8 -*-
"""Tests for shellapp module.
Authors
-------
* Bradley Froehle
"""
#-----------------------------------------------------------------------------
# Copyright (C) 2012 The IPython Development Team
#
# Distributed under the terms of the BSD License. The full license is in
# the file COPYING, distributed as part of this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
import unittest
from IPython.testing import decorators as dec
from IPython.testing import tools as tt
class TestFileToRun(tt.TempFileMixin, unittest.TestCase):
"""Test the behavior of the file_to_run parameter."""
def test_py_script_file_attribute(self):
"""Test that `__file__` is set when running `ipython file.py`"""
src = "print(__file__)\n"
self.mktmp(src)
err = None
tt.ipexec_validate(self.fname, self.fname, err)
def test_ipy_script_file_attribute(self):
"""Test that `__file__` is set when running `ipython file.ipy`"""
src = "print(__file__)\n"
self.mktmp(src, ext='.ipy')
err = None
tt.ipexec_validate(self.fname, self.fname, err)
# The commands option to ipexec_validate doesn't work on Windows, and it
# doesn't seem worth fixing
@dec.skip_win32
def test_py_script_file_attribute_interactively(self):
"""Test that `__file__` is not set after `ipython -i file.py`"""
src = "True\n"
self.mktmp(src)
out, err = tt.ipexec(
self.fname,
options=["-i"],
commands=['"__file__" in globals()', "print(123)", "exit()"],
)
assert "False" in out, f"Subprocess stderr:\n{err}\n-----"