grocery_stocker wrote:
On Mar 25, 7:05 am, grocery_stocker <cdal...@gmail.com> wrote:
Given the following code...
#!/usr/bin/env python
import time
import thread
def myfunction(string,sleeptime,*args):
while 1:
print string
time.sleep(sleeptime) #sleep for a specified amount of time.
if __name__=="__main__":
thread.start_new_thread(myfunction,("Thread No:1",2))
while 1:pass
Taken from following URL....http://linuxgazette.net/107/pai.html
How can myfunction() extract the tuple ("Thread No:1",2) from
start_new_thread() if myfunction is only being passed the single arg
("Thread No:1",2)
The only thing that I think of is that the tuple ("Thread No:1",2) is
somehow being extract before it gets passed to myfunction(). Ie,
something like the following...
[cdal...@localhost ~]$ python
Python 2.4.3 (#1, Oct 1 2006, 18:00:19)
[GCC 4.1.1 20060928 (Red Hat 4.1.1-28)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
def myfunction(first, second, *args):
... print "The formal args are: ", args
... print "the first value is:", first
... print "the second value is:", second
...
a, b = (1,2)
myfunction(a,b)
The formal args are: ()
the first value is: 1
the second value is: 2
and if you call "myfunction(1,2,("Thread No:1",2))", you should
get something like
The formal args are: (('Thread No:1', 2),)
the first value is: 1
the second value is: 2
It's a list of the various items you put in:
def show_args(first, second, *args):
print "first", first
print "second", second
for i, arg in enumerate(args):
print "#%i %s" % (i, arg)
So you can either access "args[0]" (which is a bit dangerous, as
you assume there may be a value when there's not), or you can do
the more traditional thing of just treating it like a list as
above (e.g. iterating over it or using it in a list-comprehension).
-tkc
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