gh-122478: Remove internal frames from tracebacks in REPL (GH-122528)

Frames of methods in code and codeop modules was show with non-default
sys.excepthook.

Save correct tracebacks in sys.last_traceback and update __traceback__
attribute of sys.last_value and sys.last_exc.
This commit is contained in:
Serhiy Storchaka 2024-08-07 23:20:57 +03:00 committed by GitHub
parent 42d9bec98f
commit e73e7a7abd
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
3 changed files with 161 additions and 54 deletions

View file

@ -107,29 +107,21 @@ class InteractiveInterpreter:
"""
colorize = kwargs.pop('colorize', False)
type, value, tb = sys.exc_info()
sys.last_exc = value
sys.last_type = type
sys.last_value = value
sys.last_traceback = tb
if filename and type is SyntaxError:
# Work hard to stuff the correct filename in the exception
try:
msg, (dummy_filename, lineno, offset, line) = value.args
except ValueError:
# Not the format we expect; leave it alone
pass
else:
# Stuff in the right filename
value = SyntaxError(msg, (filename, lineno, offset, line))
sys.last_exc = sys.last_value = value
if sys.excepthook is sys.__excepthook__:
lines = traceback.format_exception_only(type, value, colorize=colorize)
self.write(''.join(lines))
else:
# If someone has set sys.excepthook, we let that take precedence
# over self.write
self._call_excepthook(type, value, tb)
try:
typ, value, tb = sys.exc_info()
if filename and typ is SyntaxError:
# Work hard to stuff the correct filename in the exception
try:
msg, (dummy_filename, lineno, offset, line) = value.args
except ValueError:
# Not the format we expect; leave it alone
pass
else:
# Stuff in the right filename
value = SyntaxError(msg, (filename, lineno, offset, line))
self._showtraceback(typ, value, None, colorize)
finally:
typ = value = tb = None
def showtraceback(self, **kwargs):
"""Display the exception that just occurred.
@ -140,32 +132,35 @@ class InteractiveInterpreter:
"""
colorize = kwargs.pop('colorize', False)
sys.last_type, sys.last_value, last_tb = ei = sys.exc_info()
sys.last_traceback = last_tb
sys.last_exc = ei[1]
try:
if sys.excepthook is sys.__excepthook__:
lines = traceback.format_exception(ei[0], ei[1], last_tb.tb_next, colorize=colorize)
self.write(''.join(lines))
else:
# If someone has set sys.excepthook, we let that take precedence
# over self.write
self._call_excepthook(ei[0], ei[1], last_tb)
typ, value, tb = sys.exc_info()
self._showtraceback(typ, value, tb.tb_next, colorize)
finally:
last_tb = ei = None
typ = value = tb = None
def _call_excepthook(self, typ, value, tb):
try:
sys.excepthook(typ, value, tb)
except SystemExit:
raise
except BaseException as e:
e.__context__ = None
print('Error in sys.excepthook:', file=sys.stderr)
sys.__excepthook__(type(e), e, e.__traceback__.tb_next)
print(file=sys.stderr)
print('Original exception was:', file=sys.stderr)
sys.__excepthook__(typ, value, tb)
def _showtraceback(self, typ, value, tb, colorize):
sys.last_type = typ
sys.last_traceback = tb
sys.last_exc = sys.last_value = value = value.with_traceback(tb)
if sys.excepthook is sys.__excepthook__:
lines = traceback.format_exception(typ, value, tb,
colorize=colorize)
self.write(''.join(lines))
else:
# If someone has set sys.excepthook, we let that take precedence
# over self.write
try:
sys.excepthook(typ, value, tb)
except SystemExit:
raise
except BaseException as e:
e.__context__ = None
e = e.with_traceback(e.__traceback__.tb_next)
print('Error in sys.excepthook:', file=sys.stderr)
sys.__excepthook__(type(e), e, e.__traceback__)
print(file=sys.stderr)
print('Original exception was:', file=sys.stderr)
sys.__excepthook__(typ, value, tb)
def write(self, data):
"""Write a string.