Python wait command

**Bunni** · 12-12-08, 05:26 PM

I have two functions, simplistically function A writes a file, function B formats the written file.

However it seems that function A takes a few seconds to write the file, so when B is executed, it cannot find the file to format because it has not yet been written and so error city yada yada...

Ive been surfing pythons api but have yet to find an adequate wait function or something to delay function B from being executed before the file is written.

Does anyone have any ideas?

Any and all help will be greatly appreciated!
Bun-

**QuickLightning** · 12-12-08, 05:32 PM

Well, if there is no NOP command in python, why not just create a FOR loop that just incriminates an irrelevant variable a few thousand times? It's inefficient but it would work.

**Bunni** · 12-12-08, 05:35 PM

Originally Posted by QuickLightning

Well, if there is no NOP command in python, why not just create a FOR loop that just incriminates an irrelevant variable a few thousand times? It's inefficient but it would work.

the only problem then is that it might work on one server, but then on another (more powerful) server may take quite less time to (seconds to miliseconds).

Need something that works in all scenarios :3

**Pineapple!** · 12-12-08, 06:05 PM

duct tape. :9

**QuickLightning** · 12-12-08, 06:11 PM

Originally Posted by Bunni

Originally Posted by QuickLightning

Well, if there is no NOP command in python, why not just create a FOR loop that just incriminates an irrelevant variable a few thousand times? It's inefficient but it would work.

the only problem then is that it might work on one server, but then on another (more powerful) server may take quite less time to (seconds to miliseconds).

Need something that works in all scenarios :3

If time is not an issue (that is, you are not holding up other processes that are time critical by doing so) why not just find a suitable wait time using the above idea, and multiply it by 10 or so... I'd love to be of more help but python is not my strong suit as far as programming languages are concerned. I'm having my own issues with tcl right now.

**Ewok** · 12-12-08, 06:55 PM

What mechanism are you using such that function A and function B are running independently? Threads? Different scripts? Depending on how your doing it, a different solution is necessary.

And yes just spinning on a variable waiting for an event should be avoided.

FYI to delay in python

Code:

import time

timeInMilliseconds = 1000
time.sleep(timeInMilliseconds)

**Bunni** · 12-12-08, 09:27 PM

Originally Posted by Ewok

What mechanism are you using such that function A and function B are running independently? Threads? Different scripts? Depending on how your doing it, a different solution is necessary.

And yes just spinning on a variable waiting for an event should be avoided.

FYI to delay in python

Code:

import time

timeInMilliseconds = 1000
time.sleep(timeInMilliseconds)

crashes the server, hard. Q_Q

**Ewok** · 12-13-08, 01:12 AM

While python is running, nothing else in the game engine can run, hence the hang since the python code is not returning because of the wait.

I'm still confused over this function B, where does it live and what's running it?

**Bunni** · 01-06-09, 02:34 PM

Hmm for stats printing out at a specified time, whats better: using the python event scheduler (sched), or threading.Timer?

**Ewok** · 01-06-09, 02:43 PM

using a sdk built in timer

Code:

class SomeClass(object):
  def __init__(self):
    sdk.createTimer(seconds, self.myCallback)

  def myCallback(self, privateData, timer):
    # Do stuff

We want to avoid using python threads as much as possible (the python scheduler also uses python threads). What you want to do can easily be done using the sdk timer.