New submission from Terry J. Reedy:
3.5.0a2, my Win 7 and Guido's new Win laptop: error tracebacks are mangled in a
way that makes Idle severely less functional, hence 'release blocker'. First,
the normal behavior.
Python 3.5.0a2 (v3.5.0a2:0337bd7ebcb6+, Mar 9 2015, 10:29:45) [MSC v.1900 64 bi
t (AMD64)] on win32
>>> 1/0
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ZeroDivisionError: division by zero
Idle 3.4.3 and previous give same, with the helpful addition of the code line
('1/0'), as in batch mode tracebacks, since it uses the traceback module. But
Idle 3.5.0a2 started from the installed icon gives
>>> 1/0
Traceback (most recent call last):
Traceback (most recent call last):
Traceback (most recent call last):
File "C:\Program Files\Python 3.5\lib\idlelib\run.py", line 353, in runcode
exec(code, self.locals)
File "<pyshell#1>", line 1, in <module>
ZeroDivisionError: division by zero
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Program Files\Python 3.5\lib\idlelib\run.py", line 126, in main
ret = method(*args, **kwargs)
File "C:\Program Files\Python 3.5\lib\idlelib\run.py", line 365, in runcode
print_exception()
File "C:\Program Files\Python 3.5\lib\idlelib\run.py", line 216, in
print_exception
print_exc(typ, val, tb)
File "C:\Program Files\Python 3.5\lib\idlelib\run.py", line 211, in print_exc
traceback.print_list(tbe, file=efile)
File "C:\Program Files\Python 3.5\lib\traceback.py", line 22, in print_list
for item in StackSummary.from_list(extracted_list).format():
File "C:\Program Files\Python 3.5\lib\traceback.py", line 370, in format
frame.filename, frame.lineno, frame.name))
AttributeError: 'tuple' object has no attribute 'filename'
>>> ================================ RESTART ================================
>>>
run.py (as should be more or less everything in idlelib) is identical in 3.4
and 3.5. Idle started from a command line (py -3 -m idlelib) gives an even
worse result. The Idle Shell just shows
>>> 1/0
Traceback (most recent call last):
Traceback (most recent call last):
>>> ================================ RESTART ================================
>>>
while the following appears in the command window (Command Prompt or
PowerShell).
Traceback (most recent call last):
File "C:\Program Files\Python 3.5\lib\idlelib\run.py", line 353, in runcode
exec(code, self.locals)
File "<pyshell#0>", line 1, in <module>
ZeroDivisionError: division by zero
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Program Files\Python 3.5\lib\idlelib\run.py", line 126, in main
ret = method(*args, **kwargs)
File "C:\Program Files\Python 3.5\lib\idlelib\run.py", line 365, in runcode
print_exception()
File "C:\Program Files\Python 3.5\lib\idlelib\run.py", line 216, in
print_exception
print_exc(typ, val, tb)
File "C:\Program Files\Python 3.5\lib\idlelib\run.py", line 211, in print_exc
traceback.print_list(tbe, file=efile)
File "C:\Program Files\Python 3.5\lib\traceback.py", line 22, in print_list
for item in StackSummary.from_list(extracted_list).format():
File "C:\Program Files\Python 3.5\lib\traceback.py", line 370, in format
frame.filename, frame.lineno, frame.name))
AttributeError: 'tuple' object has no attribute 'filename'
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Program Files\Python 3.5\lib\idlelib\rpc.py", line 359, in pollpacket
s = self.sock.recv(BUFSIZE)
ConnectionResetError: [WinError 10054] An existing connection was forcibly
closed by the r
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Program Files\Python 3.5\lib\idlelib\rpc.py", line 432, in
pollresponse
message = self.pollmessage(wait)
File "C:\Program Files\Python 3.5\lib\idlelib\rpc.py", line 384, in
pollmessage
packet = self.pollpacket(wait)
File "C:\Program Files\Python 3.5\lib\idlelib\rpc.py", line 361, in pollpacket
raise EOFError
EOFError
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Program Files\Python 3.5\lib\idlelib\PyShell.py", line 565, in
poll_subprocess
response = clt.pollresponse(self.active_seq, wait=0.05)
File "C:\Program Files\Python 3.5\lib\idlelib\rpc.py", line 436, in
pollresponse
self.handle_EOF()
File "C:\Program Files\Python 3.5\lib\idlelib\PyShell.py", line 383, in
handle_EOF
raise EOFError
EOFError
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
ValueError: invalid literal for int() with base 10: '??'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Program Files\Python 3.5\lib\tkinter\__init__.py", line 1534, in
__call__
args = self.subst(*args)
File "C:\Program Files\Python 3.5\lib\tkinter\__init__.py", line 1252, in
_substitute
e.num = getint_event(b)
File "C:\Program Files\Python 3.5\lib\tkinter\__init__.py", line 1231, in
getint_event
return int(s)
SystemError: result with error in PyObject_Call
This needs to be checked on another OS, but the traceback problem does not
strike me as Windows-specific.
----------
keywords: 3.3regression
messages: 237810
nosy: georg.brandl, larry, ncoghlan, terry.reedy
priority: release blocker
severity: normal
stage: needs patch
status: open
title: 3.5 (a2) traceback regression snarls Idle
type: behavior
versions: Python 3.5
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Python tracker <[email protected]>
<http://bugs.python.org/issue23631>
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