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| Summary: | Python debugger can't cope with user exceptions | ||
|---|---|---|---|
| Product: | python | Reporter: | timf <timf> |
| Component: | Debugger | Assignee: | Lou Dasaro <mr_lou_d> |
| Status: | CLOSED WONTFIX | ||
| Severity: | blocker | CC: | ardavis26, Jenselme, mr_lou_d |
| Priority: | P2 | ||
| Version: | 8.0.2 | ||
| Hardware: | All | ||
| OS: | All | ||
| See Also: | https://netbeans.org/bugzilla/show_bug.cgi?id=171753 | ||
| Issue Type: | DEFECT | Exception Reporter: | |
Oh, I suspect this is completely the wrong thing to do,
but found that if I just hacked out the contents of the
if-statement in:
~/.netbeans/6.7/config/nbPython/debug/nbpythondebug/jpydaemon.py
so that it would never fire at all, debugging would 'work' inside
exceptions (though again, perhaps this causes trouble down the line!)
678 if event == 'exception':
679 # set user exception info to be able to populate to client side later
680 # mainDebugger.user_exception(frame,arg)
# Tim commented out this bit:
681 #if not self.discardedException(arg) :
682 # mainDebugger.populate_exception(arg)
683 # mainDebugger.setTrace(None)
684 # # leave debuggee
685 # # raise BdbQuit
686 # mainDebugger.terminateDaemon()
687 # return None # stop trace on current frame
688 return self.trace_dispatch
I Traced this using ea 2 I was able to reproduce this issue on windows Traceback follows: [LOG]PythonDebugger : overall Starting >>>[LOG]PythonDebugger.taskStarted : I am Starting a new Debugging Session ... [LOG]This window is an interactive debugging context aware Python Shell [LOG]where you can enter python console commands while debugging >>>*sys-package-mgr*: processing new jar, 'C:\ADData\NetBeans 6.7.1\python1\jython-2.5\jython.jar' >>>*sys-package-mgr*: processing new jar, 'C:\bea10\jdk150_15\jre\lib\rt.jar' >>>*sys-package-mgr*: processing new jar, 'C:\bea10\jdk150_15\jre\lib\jsse.jar' *sys-package-mgr*: processing new jar, 'C:\bea10\jdk150_15\jre\lib\jce.jar' *sys-package-mgr*: processing new jar, 'C:\bea10\jdk150_15\jre\lib\charsets.jar' >>>*sys-package-mgr*: processing new jar, 'C:\bea10\jdk150_15\jre\lib\ext\dnsns.jar' *sys-package-mgr*: processing new jar, 'C:\bea10\jdk150_15\jre\lib\ext\localedata.jar' *sys-package-mgr*: processing new jar, 'C:\bea10\jdk150_15\jre\lib\ext\sunjce_provider.jar' *sys-package-mgr*: processing new jar, 'C:\bea10\jdk150_15\jre\lib\ext\sunpkcs11.jar' >>>c:\documents and settings\davisal.mms\.netbeans\6.7\config\nbpython\debug\nbpythondebug\jpydaemon.py args = ['C:\\Documents and Settings\\davisal.MMS\\.netbeans\\6.7\\config\\nbPython\\debug\\nbpythondebug\\jpydaemon.py', 'localhost', '29100'] localDebuggee= None JPyDbg connecting localhost on in= 29100 /out= 29101 JPyDbgI0001 : connected to localhost >>>c:\documents and settings\davisal.mms\.netbeans\6.7\config\nbpython\debug\nbpythondebug\jpydaemon.py >>>[LOG]PythonDebugger : overall Starting [LOG]PythonDebugger.taskStarted : I am Starting a new Debugging Session ... [LOG]This window is an interactive debugging context aware Python Shell [LOG]where you can enter python console commands while debugging >>>[LOG]PythonDebugger : overall Starting >>>[LOG]PythonDebugger.taskStarted : I am Starting a new Debugging Session ... [LOG]This window is an interactive debugging context aware Python Shell [LOG]where you can enter python console commands while debugging >>>[LOG]PythonDebugger : overall Starting [LOG]PythonDebugger.taskStarted : I am Starting a new Debugging Session ... [LOG]This window is an interactive debugging context aware Python Shell [LOG]where you can enter python console commands while debugging >>>c:\documents and settings\davisal.mms\.netbeans\6.7\config\nbpython\debug\nbpythondebug\jpydaemon.py args = ['C:\\Documents and Settings\\davisal.MMS\\.netbeans\\6.7\\config\\nbPython\\debug\\nbpythondebug\\jpydaemon.py', 'localhost', '29115'] localDebuggee= None JPyDbg connecting localhost on in= 29115 /out= 29116 JPyDbgI0001 : connected to localhost >>>[stdout:]Hello World >>>[stdout:]hello world >>>[stdout:]do stuff >>>Exception in thread MainThread:Traceback (most recent call last): File "C:\ADData\NetBeans 6.7.1\python1\jython-2.5\Lib\threading.py", line 247, in _Thread__bootstrap self.run() File "C:\Documents and Settings\davisal.MMS\.netbeans\6.7\config\nbPython\debug\nbpythondebug\jpydaemon.py", line 590, in run exec self._cmd in self._myglobals,self._mylocals File "<string>", line 1, in <module> File "C:/ADData/projects/pyDebugTest/src/pydebugtest.py", line 16, in <module> raise MyException("something bad happened") File "C:/ADData/projects/pyDebugTest/src/pydebugtest.py", line 16, in <module> raise MyException("something bad happened") File "C:\Documents and Settings\davisal.MMS\.netbeans\6.7\config\nbPython\debug\nbpythondebug\jpydaemon.py", line 681, in trace_dispatch if not self.discardedException(arg) : File "C:\Documents and Settings\davisal.MMS\.netbeans\6.7\config\nbPython\debug\nbpythondebug\jpydaemon.py", line 631, in discardedException tb = exc_stuff[2] IndexError: index out of range: 2 >>>Debug session normal end [LOG]PythonDebugger : overall Starting [LOG]PythonDebugger.taskStarted : I am Starting a new Debugging Session ... [LOG]This window is an interactive debugging context aware Python Shell [LOG]where you can enter python console commands while debugging >>>c:\documents and settings\davisal.mms\.netbeans\6.7\config\nbpython\debug\nbpythondebug\jpydaemon.py args = ['C:\\Documents and Settings\\davisal.MMS\\.netbeans\\6.7\\config\\nbPython\\debug\\nbpythondebug\\jpydaemon.py', 'localhost', '29115'] localDebuggee= None JPyDbg connecting localhost on in= 29115 /out= 29116 JPyDbgI0001 : connected to localhost >>>[stdout:]Hello World >>>[stdout:]hello world >>>[stdout:]do stuff >>>[stdout:]Not to worry [stdout:]ending here Debug session normal end [LOG]PythonDebugger : overall Starting [LOG]PythonDebugger.taskStarted : I am Starting a new Debugging Session ... [LOG]This window is an interactive debugging context aware Python Shell [LOG]where you can enter python console commands while debugging >>>c:\documents and settings\davisal.mms\.netbeans\6.7\config\nbpython\debug\nbpythondebug\jpydaemon.py args = ['C:\\Documents and Settings\\davisal.MMS\\.netbeans\\6.7\\config\\nbPython\\debug\\nbpythondebug\\jpydaemon.py', 'localhost', '29115'] localDebuggee= None JPyDbg connecting localhost on in= 29115 /out= 29116 JPyDbgI0001 : connected to localhost >>>[stdout:]Hello World >>>[stdout:]hello world >>>[stdout:]do stuff >>>Exception in thread MainThread:Traceback (most recent call last): File "C:\ADData\NetBeans 6.7.1\python1\jython-2.5\Lib\threading.py", line 247, in _Thread__bootstrap self.run() File "C:\Documents and Settings\davisal.MMS\.netbeans\6.7\config\nbPython\debug\nbpythondebug\jpydaemon.py", line 590, in run exec self._cmd in self._myglobals,self._mylocals File "<string>", line 1, in <module> File "C:/ADData/projects/pyDebugTest/src/pydebugtest.py", line 16, in <module> raise MyException("something bad happened") File "C:/ADData/projects/pyDebugTest/src/pydebugtest.py", line 16, in <module> raise MyException("something bad happened") File "C:\Documents and Settings\davisal.MMS\.netbeans\6.7\config\nbPython\debug\nbpythondebug\jpydaemon.py", line 681, in trace_dispatch if not self.discardedException(arg) : File "C:\Documents and Settings\davisal.MMS\.netbeans\6.7\config\nbPython\debug\nbpythondebug\jpydaemon.py", line 631, in discardedException tb = exc_stuff[2] Debug session normal end IndexError: index out of range: 2 >>> Reduced to P2 as per guidelines at http://wiki.netbeans.org/BugPriorityGuidelines Should be solved with the new debugger when we add it. The debugger is currently disabled. Closing this since there is no point into importing it elsewhere. Thanks for your evaluation Julien. Reporter, if you think your issue is still valid and needs to be addressed, don't hesitate to reopen it with additional information. Closing for now. |
I'm seeing odd behaviour with exception handling in Netbeans 6.7, with slightly different failure cases depending on which python platform I used. I was trying Jython 2.5 & Python 2.4.6. (Python 2.6.1 had the same failure cases as 2.4.6) Using a brand new project, I created a simple python program: ===== __author__="timf" __date__ ="$Sep 29, 2009 11:25:05 AM$" class MyException(Exception): pass if __name__ == "__main__": print "Hello World"; print "hello world" try: print "do stuff" raise MyException("something bad happened") print "won't get here" except MyException: print "Not to worry" print "ending here" ==== I set a breakpoint on the line just before the 'try:' statement, and another on the 'print "not to worry"' line in the exception clause. Using Jython 2.5 set as my project platform: When running in the debugger we stop as expected on the first breakpoint. Then, we click continue, expecting to hit the 2nd breakpoint, instead we get the following crash in the debugger: -------------------------------- [LOG]PythonDebugger : overall Starting [LOG]PythonDebugger.taskStarted : I am Starting a new Debugging Session ... [LOG]This window is an interactive debugging context aware Python Shell [LOG]where you can enter python console commands while debugging >>>/export/home/timf/.netbeans/6.7/config/nbPython/debug/nbpythondebug/jpydaemon.py args = ['/export/home/timf/.netbeans/6.7/config/nbPython/debug/nbpythondebug/jpydaemon.py', 'localhost', '29100'] localDebuggee= None JPyDbg connecting localhost on in= 29100 /out= 29101 JPyDbgI0001 : connected to localhost >>>[stdout:]Hello World [stdout:]hello world >>>[stdout:]do stuffException in thread MainThread:Traceback (most recent call last): File "/export/home/timf/.netbeans/6.7/jython-2.5/Lib/threading.py", line 247, in _Thread__bootstrap self.run() File "/export/home/timf/.netbeans/6.7/config/nbPython/debug/nbpythondebug/jpydaemon.py", line 590, in run exec self._cmd in self._myglobals,self._mylocals File "<string>", line 1, in <module> File "/export/home/timf/NetBeansProjects/test/src/test.py", line 16, in <module> raise MyException("something bad happened") Debug session normal end File "/export/home/timf/NetBeansProjects/test/src/test.py", line 16, in <module> raise MyException("something bad happened") File "/export/home/timf/.netbeans/6.7/config/nbPython/debug/nbpythondebug/jpydaemon.py", line 681, in trace_dispatch if not self.discardedException(arg) : File "/export/home/timf/.netbeans/6.7/config/nbPython/debug/nbpythondebug/jpydaemon.py", line 631, in discardedException tb = exc_stuff[2] IndexError: index out of range: 2 >>> -------------------------------- Using Python 2.4.6 as the platform, we get similar behaviour - we stop on the 1st breakpoint, then crash before hitting the 2nd breakpoint: -------------------------------- >>>[LOG]PythonDebugger : overall Starting [LOG]PythonDebugger.taskStarted : I am Starting a new Debugging Session ... [LOG]This window is an interactive debugging context aware Python Shell [LOG]where you can enter python console commands while debugging [stdout:]Hello World [stdout:]hello world >>>[stdout:]do stuff Debug session normal end something bad happened['Traceback (most recent call last): /export/home/timf/.netbeans/6.7/config/nbPython/debug/nbpythondebug/jpydaemon.py ', ' File "/export/home/timf/NetBeansProjects/test/src/test.py", line 16, in ? args = ['/export/home/timf/.netbeans/6.7/config/nbPython/debug/nbpythondebug/jpydaemon.py', 'localhost', '29100'] raise MyException("something bad happened") ', 'MyException: something bad happened localDebuggee= None '] JPyDbg connecting localhost on in= 29100 /out= 29101 JPyDbgI0001 : connected to localhost deamon ended >>> -------------------------------- Now, changing MyException to Exception (taking out the exception class declared here, and using the system-provided Exception implementation), we see different behaviour: In Jython 2.5, we see that it hits the 1st exception, but then clicking continue and expecting to hit the 2nd breakpoint, instead execution continues to the end of the program: -------------------------------- >>>[LOG]PythonDebugger : overall Starting [LOG]PythonDebugger.taskStarted : I am Starting a new Debugging Session ... [LOG]This window is an interactive debugging context aware Python Shell [LOG]where you can enter python console commands while debugging >>>/export/home/timf/.netbeans/6.7/config/nbPython/debug/nbpythondebug/jpydaemon.py args = ['/export/home/timf/.netbeans/6.7/config/nbPython/debug/nbpythondebug/jpydaemon.py', 'localhost', '29100'] localDebuggee= None JPyDbg connecting localhost on in= 29100 /out= 29101 JPyDbgI0001 : connected to localhost [stdout:]Hello World [stdout:]hello world >>>[stdout:]do stuff [stdout:]Not to worry [stdout:]ending here Debug session normal end -------------------------------- In Python 2.4.6, we see: -------------------------------- [LOG]PythonDebugger : overall Starting [LOG]PythonDebugger.taskStarted : I am Starting a new Debugging Session ... [LOG]This window is an interactive debugging context aware Python Shell [LOG]where you can enter python console commands while debugging [stdout:]Hello World [stdout:]hello world >>>/export/home/timf/.netbeans/6.7/config/nbPython/debug/nbpythondebug/jpydaemon.py [stdout:]do stuffargs = ['/export/home/timf/.netbeans/6.7/config/nbPython/debug/nbpythondebug/jpydaemon.py', 'localhost', '29100'] localDebuggee= None something bad happened['Traceback (most recent call last): JPyDbg connecting localhost on in= 29100 /out= 29101 ', ' File "/export/home/timf/NetBeansProjects/test/src/test.py", line 13, in ? JPyDbgI0001 : connected to localhost raise Exception("something bad happened") deamon ended ', 'Exception: something bad happened Not to worry '] ending here Debug session normal end -------------------------------- I'm using Product Version: NetBeans IDE 6.7 (Build 200906241340) Java: 1.6.0_15; Java HotSpot(TM) Client VM 14.1-b02 System: SunOS version 5.11 running on x86; UTF-8; en_US (nb) Userdir: /export/home/timf/.netbeans/6.7 My Python plugin lists as: Version: 0.101 Source: NetBeans Beta My Jython plugin lists as: Version: 2.10 Source: NetBeans Beta Let me know if there's any other information I can provide?