Re: is +=1 thread safe

2008-05-03 Thread AlFire
Alexander Schmolck wrote: AlFire [EMAIL PROTECTED] writes: The threading module already has a function to return the number of Thread objects currently alive. I have threads within threads - so it does not suit me :-(. How about using a scalar numpy array? They are mutable, so I assume

Re: is +=1 thread safe

2008-05-02 Thread AlFire
Duncan Booth wrote: [...] is equivalent to: x = x.__iadd__(1) thx all for answers and hints ... Generating hundreds of threads is, BTW, a very good way to get poor performance on any system. Don't do that. Create a few threads and put the actions for those threads into a Queue. If

is +=1 thread safe

2008-05-01 Thread AlFire
Hi, I have a piece of software which uses threads in very massive way - like hundreds of them generated every second. there is also a piece of code which maintains the number of outstanding threads, simply counter+=1 is executed when before starting the thread and counter-=1 after it

Re: Python Success stories

2008-04-23 Thread AlFire
Cristina Yenyxe González García wrote: 2008/4/23, Reedick, Andrew [EMAIL PROTECTED]: IIRC, Python is used in games like Eve Online (SciFi MMO) and Vampire: Bloodlines (RPG.) Years later, a dedicated fan is still fixing/updating the Bloodlines python scripts that control the dialogue and

Re: Python Success stories

2008-04-23 Thread AlFire
Bob Woodham wrote: x = x++; has unspecified behaviour in C. what about C++ -- http://mail.python.org/mailman/listinfo/python-list

Re: why objects of old style classes are instances of 'object'

2008-04-21 Thread AlFire
Diez B. Roggisch wrote: But not everything is a newstyle-class: class Foo: pass ... isinstance(Foo, object) True isinstance(Foo, type) False class Bar(object): pass ... isinstance(Bar, type) True thx for explanation. but more I look at it less and

why function got dictionary

2008-04-17 Thread AlFire
Hi, I am seeking an explanation for following: Python 2.5.2 (r252:60911, Apr 8 2008, 21:49:41) [GCC 4.2.3 (Ubuntu 4.2.3-2ubuntu7)] on linux2 Type help, copyright, credits or license for more information. def g(): return ... g.__dict__ {} Q: why function got dictionary? What it is used for?

Re: why function got dictionary

2008-04-17 Thread AlFire
Diez B. Roggisch wrote: Q: why function got dictionary? What it is used for? because it is an object, and you can do e.g. you mean an object in the following sense? isinstance(g,object) True where could I read more about that? Andy --

why objects of old style classes are instances of 'object'

2008-04-17 Thread AlFire
Hi, Q: from the subject, why objects of old style classes are instances of 'object'? class a():pass A=a() isinstance(A,object) True I would expect False Thx, Andy -- http://mail.python.org/mailman/listinfo/python-list