Loop help Python

[namarino]

I have something like this:

list = [(1,2), (2,1)]for x in list:    for y, z in x:        print(y, z)

but it gives me an error that says int objects are not iterable. How can I make this work? What am I doing wrong here? Thanks so much for your help!

[Sauron]

Why don't you just write

for y in x:   print y

as the second loop? also, I don't think (1,2) is a recognizable form, but I could be wrong.

[skyress3000]

you can't do

for x, y in (1,2):    //do stuff

but you can do

x, y = (1,2)

[skyress3000]

Why don't you just write

for y in x:   print y

as the second loop? also, I don't think (1,2) is a recognizable form, but I could be wrong.

it's a tuple.

[Smiffy]

What are you trying to do here?

[conspiravision]

#!/bin/env pythonlist = [(1,2), (2,1)]for x in list:    print x

(1, 2)

(2, 1)

 

 

But you'll have to structure it differently if you want just the numbers.

will print them as:

[Sauron]

it's a tuple.

 

oh yeah, right

[namarino]

What are you trying to do here?

Well in this project that I have to do, those are coordinates, and I have to take those coordinates and enter them into another function. That's why I want both variables there like I had it. In the real function, the list is much longer.

[Smiffy]

Well in this project that I have to do, those are coordinates, and I have to take those coordinates and enter them into another function. That's why I want both variables there like I had it. In the real function, the list is much longer.

I don't understand from the way you typed it can you maybe write it in Pseudo Code or a flowchart so I can help?

Have 3yrs of Python knowledge from School and am happy to assist

[namarino]

I don't understand from the way you typed it can you maybe write it in Pseudo Code or a flowchart so I can help?

Have 3yrs of Python knowledge from School and am happy to assist

Sure sure. So I basically want to pull these numbers out of the list as coordinates (x, y) because I need to pass them through another function which takes two parameters, x and y. That's why I want to pull them out two at a time. 

 

So if we have a list of tuples:

list = [(2,1), (1,2)]

 

cycle though list:                               

    cycle through tuple setting each number equal to x and y respectively:      #so in this case, x and y would be 2 and 1 for the list's first member and 1 and 2 for the second

        function(x, y)

 

 

I hope that I explained that okay. Thanks so much for your help.

[madknight3]

@namarino 

 

Did you see skyress3000's answer? (literally the 2nd reply)

list = [(1,2), (3,4)]for item in list:    x, y = item    someFunction(x, y)

[namarino]

 

@namarino 

 

Did you see skyress3000's answer? (literally the 2nd reply)

list = [(1,2), (3,4)]for item in list:    x, y = item    someFunction(x, y)

Hmmm no I didn't. There is no one with that name who has replied.

[madknight3]

Hmmm no I didn't. There is no one with that name who has replied.

 

Weird

 

[namarino]

Weird

 

But thanks man, that actually helped.