What Hugo said. You can find more info here: http://docs.python.org/library/stdtypes.html#string-formatting
As for the "16" in the int() command (or "0" in the example I sent), that is the base for the string-to-integer conversion. If the argument is not given, it uses a base of 10 by default. You can pass it a value of 16 so it will interpret hex characters correctly, or 0 to let python guess the best base to use for the given string. In this case, this works because the string will always start with '0x', which Python will interpret as an hexadecimal. More info: http://docs.python.org/library/functions.html#int Hope that clarifies it a bit. Cheers, Ivan On Mon, Apr 23, 2012 at 12:12 PM, Hugo Léveillé <[email protected]> wrote: > Its called string formatting > > ex: > age = '16' > print "Hi, I am " + age + " years old" > > is the same as: > > print "Hi, I am %s years old" % age > > It has the advantage of making clearer string writing as well as > converting int and floats to string as well > > ex: > > "I am %s years old and I have %s dollars" % (10 , 3.5) > > > > > On Mon, Apr 23, 2012, at 12:00, Adam Hazard wrote: > > ok, cool, I think I understand it better now. Thanks, guys. Also, if you > don't mind, another question, what exactly is the '%' doing in this code. > And I have used 'int' before, and seen the '16' posted around, what exactly > are those doing, I am guessing that is what converts the value from string > to integer? > > -Adam > > On 04/23/2012 10:48 AM, Nathan Rusch wrote: > > The problem isn’t hex vs. int; the value you’re getting back from the > Python knob is identical to the hex value returned by the nuke.tcl call. > The issue you’re running into is that the nuke.tcl call is returning the > hex value as a string, so you need to cast it to a numeric type before you > can actually use it. > > n = nuke.selectedNode() > tile_color = int(nuke.tcl('value [topnode %s].tile_color' % n.name()), > 16) > > > -Nathan > > > From: Adam Hazard <[email protected]> > Sent: Monday, April 23, 2012 10:12 AM > To: Nuke user discussion <[email protected]> > Subject: Re: [Nuke-users] python [topnode] equivalent > > Thanks Ivan. > This was pretty much exactly what I was looking for. However I had to > change it a little bit because this was returning the tile color hex value, > if I understand all this correctly, and my function needs just the integer > value. As I can't assign or set a tile_color using hex, or I haven't been > able to figure it out. > > Anyways, for whatever reason this does the trick, kinda mixing your code > with what I had before. I am still not very sure why the tile_color has 2 > different value formats. > > n = nuke.selectedNode() > topnode_name = nuke.tcl("full_name [topnode %s]" % n.name()) > topnode = nuke.toNode(topnode_name) > tile_col = topnode['tile_color'].value() > > Thanks again and much appreciated. > Adam > > > On 04/20/2012 06:47 PM, Ivan Busquets wrote: Or if you just want the > tile_color of the top node, you could of course do: > > n = nuke.selectedNode() > > tile_color = nuke.tcl("value [topnode %s].tile_color" % n.name()) > > Hope that helps > > > On Fri, Apr 20, 2012 at 6:41 PM, Ivan Busquets <[email protected]>wrote: > You can use nuke.tcl() within python to execute a tcl command. > > So, in your case, something like this should work: > > n = nuke.selectedNode() > > topnode_name = nuke.tcl("full_name [topnode %s]" % n.name()) > > topnode = nuke.toNode(topnode_name) > > > > On Fri, Apr 20, 2012 at 6:30 PM, Adam Hazard <[email protected]> wrote: > Hopefully a quick question, > > If I currently have a node selected somewhere in a tree, and I want to > access the topnodes tile color using python, how would I do so? Using > [[topnode].tile_color] doesn't seem to work as it is tcl? Looking around it > seems you need to check dependecies of all the nodes or something, but I > haven't been able to get anything to work. Is there no way to convert the > tcl function to work in python? > > Thanks in advance for any help, > Adam > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > > > > > > _______________________________________________ > Nuke-users mailing [email protected], > http://forums.thefoundry.co.uk/http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > > > > ------------------------------ > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > > > > _______________________________________________ > Nuke-users mailing [email protected], > http://forums.thefoundry.co.uk/http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > > > *_______________________________________________* > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > > > -- > Hugo Léveillé > TD Compositing, Vision Globale > [email protected] > > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >
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