Bugs item #1583862, was opened at 2006-10-24 10:55
Message generated for change (Comment added) made by rhettinger
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Category: Python Interpreter Core
Group: Python 2.5
Status: Open
>Resolution: Wont Fix
Priority: 5
Private: No
Submitted By: Lukas Lalinsky (luks)
Assigned to: Nobody/Anonymous (nobody)
Summary: yield+break stops tracing
Initial Comment:
Here is an example script:
def myiter():
for i in range(10):
yield i
for i in myiter():
break
print "foo"
Now, if I try to trace it:
$ python -m trace --trace --count test.py
--- modulename: threading, funcname: settrace
threading.py(70): _trace_hook = func
--- modulename: test, funcname: <module>
test.py(1): def myiter():
test.py(5): for i in myiter():
--- modulename: test, funcname: myiter
test.py(2): for i in range(10):
test.py(3): yield i
test.py(6): break
c:\python25\lib\ntpath.py:190: RuntimeWarning:
tp_compare didn't return -1 or -2 for exception
if i<=max(p.rfind('/'), p.rfind('\\')):
foo
It stops tracing after the `break` statement. The line
after, `print "foo"`, is not traced nor included in the
coverage output.
I'm not sure RuntimeWarning from ntpath.py is relevant
here, because if I use the trace module in some other
situation it doesn't print it. IMO, it's just a side
effect of some different problem.
----------------------------------------------------------------------
>Comment By: Raymond Hettinger (rhettinger)
Date: 2007-04-11 11:52
Message:
Logged In: YES
user_id=80475
Originator: NO
Using Py2.5.1, the problem seems to have gone away.
Lukas, can you please verify that it is solved and then close.
=======================================================================
[EMAIL PROTECTED] ~ $ py25/python -m trace --trace --count test.py
--- modulename: threading, funcname: settrace
threading.py(70): _trace_hook = func
--- modulename: trace, funcname: <module>
<string>(1): --- modulename: trace, funcname: <module>
test.py(1): def myiter():
test.py(6): for i in myiter():
--- modulename: trace, funcname: myiter
test.py(2): for i in range(10):
test.py(3): yield i
test.py(7): break
--- modulename: trace, funcname: myiter
test.py(9): print 'foo'
foo
----------------------------------------------------------------------
Comment By: Lukas Lalinsky (luks)
Date: 2006-10-24 11:05
Message:
Logged In: YES
user_id=587716
Oh, I forgot. This bug is specific to Python 2.5. It works
fine in 2.4.
----------------------------------------------------------------------
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