[IronPython] Problem with Thread.Sleep

[Carl Trachte]

On Mon, Feb 9, 2009 at 10:44 AM, Michael Foord
<fuzzyman at voidspace.org.uk> wrote:
> Dino Viehland wrote:
>>
>> Or if your program has no UI components you can start with the -X:MTA
>> option and the warning won't get issued.
>>
>> Unfortunately the 2nd you hit a different warning it's likely you'll have
>> the same problem.  So the underlying problem looks like we're somehow
>> picking up a different linecache.py or that linecache's getlines method is
>> being patched.   If you're sure neither of those are happening then my only
>> guess would be that we could have a call site caching bug but against a
>> function that seems fairly unlikely.
>>
>
> I have a sneaking suspicion that this error happens if you use the Python
> 2.4 version of linecache. Is the Python 2.4 standard library (or bits of
> it!?!?) somehow on your IRONPYTHONPATH or included in your application?
>
> Michael

Michael, Dino,
You are both right (and heroes, of course).  I had neglected to update
my CPython modules in my project to 2.5.  I put the new 2.5
linecache.py in the project.  The first call doesn't execute, but it
doesn't raise an error, just a warning:

>>> from System.Threading import Thread
>>> Thread.Sleep(4000)
sys:1: RuntimeWarning: Calling Thread.Sleep on and STA thread doesn't
pump messages.  Use Thread.CurrentThread.Join instead.
>>> # second try
>>> Thread.Sleep(4000)
>>> # paused for 4 seconds with no warning.

Carl T.

>>
>> -----Original Message-----
>> From: users-bounces at lists.ironpython.com
>> [mailto:users-bounces at lists.ironpython.com] On Behalf Of Carl Trachte
>> Sent: Monday, February 09, 2009 8:26 AM
>> To: Discussion of IronPython
>> Subject: Re: [IronPython] Problem with Thread.Sleep
>>
>> Michael,
>> You are a hero.  Thanks.
>> Carl T.
>>
>> On Mon, Feb 9, 2009 at 9:21 AM, Michael Foord <fuzzyman at voidspace.org.uk>
>> wrote:
>>
>>>
>>> Carl Trachte wrote:
>>>
>>>>
>>>> Hello.
>>>>
>>>> I'm a bit late to the 2.0 party, but I'm trying to upgrade my
>>>> environment.
>>>>
>>>> This code fails:
>>>>
>>>>
>>>>
>>>>>>>
>>>>>>> from System.Threading import Thread
>>>>>>> Thread.Sleep(3000)
>>>>>>>
>>>>>>>
>>>>
>>>> Traceback (most recent call last):
>>>>  File "<stdin>", line 1, in <module>
>>>>  File "C:\Program Files\IronPython 2.0\Lib\warnings.py", line 61, in
>>>> warn
>>>>  File "C:\Program Files\IronPython 2.0\Lib\warnings.py", line 99, in
>>>> warn_explicit
>>>> TypeError: getlines() takes exactly 1 argument (2 given)
>>>>
>>>> I'm not a threading expert.  Basically I want the program to pause for
>>>> a few seconds.  Am I doing something wrong, or do I have something set
>>>> up wrong?
>>>>
>>>> Thanks in advance.
>>>>
>>>>
>>>>
>>>
>>> Thread.CurrentThread.Join(3000) will have the same effect, but that is a
>>> very odd error.
>>>
>>> Michael
>>>
>>>
>>>>
>>>> Carl T.
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>>>>
>>>>
>>>
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>>
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>
>
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