Comments for g-Off.net | Geoffrey Foster

Comment on A Python repeatable threading.Timer class by gfoster

gfoster — Sat, 06 Feb 2010 23:10:23 +0000

Based upon the error and the snippet of code (without seeing more of it) I’d have to guess that sinceIDReply is a module and not a function or object (the object must implement the __call__ method for it to be callable)

Comment on A Python repeatable threading.Timer class by gfoster

gfoster — Sat, 06 Feb 2010 23:06:43 +0000

No, like all python threads once it has been stopped it is no longer valid and can’t be restarted. You could of course add something into the run method that would check a “paused” boolean value, which, if true, could then cause the thread to sleep for a certain period of time

Comment on A Python repeatable threading.Timer class by Yeison

Yeison — Sat, 06 Feb 2010 19:51:54 +0000

I keep getting this error:

Traceback (most recent call last):
File “MentionPoll.py”, line 51, in
initTwitterPolling()
File “MentionPoll.py”, line 47, in initTwitterPolling
r = RepeatTimer(10.0, sinceIDReply, args=since_id)
TypeError: ‘module’ object is not callable

Any ideas what it could be?

Comment on A Python repeatable threading.Timer class by pball

pball — Fri, 05 Feb 2010 15:40:50 +0000

This is exactly what I need for my wallpaper script, except I’d like to be able to start and stop it. I saw in your last post you you can use r.cancel() to stop it, but you can’t just restart with r.start() since it gives the error “RuntimeError: thread already started”.

Is there a simple way to restart the timer after it’s been stopped?

Comment on A Python repeatable threading.Timer class by mrttlemonde

mrttlemonde — Wed, 27 Jan 2010 21:33:50 +0000

I don’t understand why I can’t run your timer… I use it just to display a message every minute. The first time it run fine… but after that, an error occur and I don’t know why.

File “/usr/lib/python2.6/threading.py”, line 525, in __bootstrap_inner
self.run()
File “./radio.py”, line 308, in run
self.function(*self.args, **self.kwargs)
TypeError: ‘NoneType’ object is not callable

That’s the method :

def summaryRefresh (self, message, startIt) :
self.waiting_seconds = self.waiting_seconds – 60
endIt = self.textBuffer.get_end_iter()
self.textBuffer.delete(startIt, endIt)
if (self.waiting_seconds < 60) :
self.textBuffer.insert(startIt, "* Starting in a few moments…\n")
else :
message_displayed = message % (int(self.waiting_seconds / 60))
self.textBuffer.insert(startIt, message_displayed)

Could you help me please?

Comment on A Python repeatable threading.Timer class by gfoster

gfoster — Wed, 11 Nov 2009 01:20:46 +0000

You can break from a script using Ctrl+C (sends and EOF). Ctrl+C is for sending a KeyboardInterrupt.

You can also cancel the execution of the timer by entering the command (for the above example script) r.cancel() and then exit normally.

The interaction of KeyboardInterrupt and multi-threaded python is mentioned in the python docs, particularly:

Threads interact strangely with interrupts: the KeyboardInterrupt exception will be received by an arbitrary thread. (When the signal module is available, interrupts always go to the main thread.)

As mentioned in http://docs.python.org/library/thread.html

Comment on A Python repeatable threading.Timer class by Sergey Petrov

Sergey Petrov — Sun, 08 Nov 2009 02:17:07 +0000

When I’m running this code on MacOSX10.6 with Python 2.6.1 I can’t break script execution by pressing ctrl+c in terminal.

Is there any way to make this work?

Comment on A Python repeatable threading.Timer class by gfoster

gfoster — Fri, 30 Oct 2009 00:11:56 +0000

I can’t actually remember why I had the two Event objects but it would seem that you’re right at the extra one is unneeded. I’ve updated the code to reflect this. Thanks!

Comment on A Python repeatable threading.Timer class by Aditya Rajgarhia

Aditya Rajgarhia — Wed, 28 Oct 2009 23:28:13 +0000

Hi, thanks for putting this up. I’m wondering why you have used two Event objects, self.event and self.finished. It seems to me that only one should be needed, and I was able to have it work with just one.

But I’m fairly new to Python, and if there is a reason why you used two separate Event objects, could you mention why?

Thanks!

Comment on A Python repeatable threading.Timer class by gfoster

gfoster — Tue, 28 Jul 2009 18:47:01 +0000

Your function Log_In is taking 1 argument (self), which is unnecessary because it’s a function on its own and not a method (where a method would be a function that is called on an object which is an instance of a class).

Try:
def Log_In(): print "Loggin in!"

for your function