Quene

[Tuvas]

I am trying to write a function that holds a variable-length quene. The
quene has 2 bits of information. At some point, I would like to remove
bits of this quene, when they are completed. Is there a way to do this
with something as follows?

quene=[]
quene.append((4,2))
quene.append((3,6))
if(4 in quene): #Shows false, what's the correct syntax to
show true?
remove 4 from quene #(Not python code, not sure how to do this...)
So, how can I make this work? Thanks!

[Dave Hansen]

On 30 Nov 2005 09:38:44 -0800 in comp.lang.python, "Tuvas"
<tu*****@gmail.com> wrote:

I am trying to write a function that holds a variable-length quene. The
quene has 2 bits of information. At some point, I would like to remove
bits of this quene, when they are completed. Is there a way to do this
with something as follows?

the following might work...
quene=[]
quene.append((4,2))
quene.append((3,6))
if(4 in quene): #Shows false, what's the correct syntax to
show true?
found = [t for t in queue if t[0] == 4]
if found:
remove 4 from quene #(Not python code, not sure how to do this...)

queue.remove(found[0])

HTH,
-=Dave

--
Change is inevitable, progress is not.

[Peter Hansen]

Tuvas wrote:

I am trying to write a function that holds a variable-length quene. The
quene has 2 bits of information. At some point, I would like to remove
bits of this quene, when they are completed. Is there a way to do this
with something as follows?

quene=[]
quene.append((4,2))
Here you are not adding two items (a 4 and a 2) but only a single item
(a tuple, containing within it a 4 and a 2). What did you really want
to do?
quene.append((3,6))
if(4 in quene): #Shows false, what's the correct syntax to
show true?
Since you don't have a 4 in your list, there is no correct syntax. If
you did have a 4, that would be the correct syntax, or you could use
queue.index(4) instead if you cared *where* it was in the list.
remove 4 from quene #(Not python code, not sure how to do this...)

queue.pop(0) will pop an item off the front of the list, which is the
end opposite where .append() puts them.

-Peter