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Code Issues Projects Releases Packages Wiki Activity Actions 17

Issue #16491: IDLE now prints chained exception tracebacks.

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This commit is contained in:
Serhiy Storchaka 2013-01-09 12:24:48 +02:00
commit 7131749959
2 changed files with 30 additions and 9 deletions
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37
Lib/idlelib/run.py
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@ -171,15 +171,34 @@ def print_exception():
efile = sys.stderr efile = sys.stderr
typ, val, tb = excinfo = sys.exc_info() typ, val, tb = excinfo = sys.exc_info()
sys.last_type, sys.last_value, sys.last_traceback = excinfo sys.last_type, sys.last_value, sys.last_traceback = excinfo
tbe = traceback.extract_tb(tb) seen = set()
print('Traceback (most recent call last):', file=efile)
exclude = ("run.py", "rpc.py", "threading.py", "queue.py", def print_exc(typ, exc, tb):
"RemoteDebugger.py", "bdb.py") seen.add(exc)
cleanup_traceback(tbe, exclude) context = exc.__context__
traceback.print_list(tbe, file=efile) cause = exc.__cause__
lines = traceback.format_exception_only(typ, val) if cause is not None and cause not in seen:
for line in lines: print_exc(type(cause), cause, cause.__traceback__)
print(line, end='', file=efile) print("\nThe above exception was the direct cause "
"of the following exception:\n", file=efile)
elif (context is not None and
not exc.__suppress_context__ and
context not in seen):
print_exc(type(context), context, context.__traceback__)
print("\nDuring handling of the above exception, "
"another exception occurred:\n", file=efile)
if tb:
tbe = traceback.extract_tb(tb)
print('Traceback (most recent call last):', file=efile)
exclude = ("run.py", "rpc.py", "threading.py", "queue.py",
"RemoteDebugger.py", "bdb.py")
cleanup_traceback(tbe, exclude)
traceback.print_list(tbe, file=efile)
lines = traceback.format_exception_only(typ, exc)
for line in lines:
print(line, end='', file=efile)
print_exc(typ, val, tb)
def cleanup_traceback(tb, exclude): def cleanup_traceback(tb, exclude):
"Remove excluded traces from beginning/end of tb; get cached lines" "Remove excluded traces from beginning/end of tb; get cached lines"

2
Misc/NEWS
View file

@ -139,6 +139,8 @@ Core and Builtins
Library Library
------- -------
- Issue #16491: IDLE now prints chained exception tracebacks.
- Issue #15972: Fix error messages when os functions expecting a file name or - Issue #15972: Fix error messages when os functions expecting a file name or
file descriptor receive the incorrect type. file descriptor receive the incorrect type.