noamtm a écrit : > Hi, > > Some functions, like os.walk(), return multiple items packed as a > tuple: > > for (dirpath, dirnames, filenames) in os.walk(...): > > Now, if you don't care about one of the tuple members, is there a > clean way to ignore it,
Yes : just ignore it !-) > in a way that no unused variable is being > created? the term 'variable' in Python can be somewhat misleading. You have objects, and you have names bound to objects. In your case, whether you bind it to a name or not, the object will be created, so it wont make much differences. > What I wanted is: > for (dirpath, , filenames) in os.walk(...): > > But that doesn't work. A common idiom is to use '_' for unused values, ie: for (dirpath, _, filenames) in os.walk(...): You could also just bind the whole tuple to a ssinngle name then subscript it: for infos in os.walk(...): # now dirpath is infos[0] and filenames is infos[2] but this won't buy you much... -- http://mail.python.org/mailman/listinfo/python-list
