On Apr 10, 9:36 pm, sophie_newbie <paulgeele...@gmail.com> wrote: > Hi there, > > I've got a function that returns a dictionary, I need to loop and > return 1000 dictionaries and append them to a list, but the thing is > that when I do the list.append(funtThatReturnsDict()) the resulting > only ever has 1 dictionary attached to it, even after running the > append function 1000 times!
Do you mean that the length of the list is 1, or do you mean that the same dictionary has been appended 1000 times? > > I've tried using dict.copy() on the dictionary that was returned from > the function but this didn't work either. > > And the function is definately returning different dictionaries each > time as I can see that when I print them. > > I know this is something to do with the dictionries being stored as > references but I've no idea how to fix it seeing as the copy() > function didn't work. I think you had better show us your code, and the output from (say) 3 iterations (not 1000!!). If you are really doing "list.append (functThatReturnsDict())" all in one line, break it up into multiple lines so that some print statements can be used for debugging: adict = functThatReturnsDict() print "A", id(adict), len(adict), adict alist.append(adict) print "B", len(alist), id(alist[-1]) Clean it up a bit ... the dict.copy() is extremely unlikely to be part of a principled solution, so remove any trace of that. Cheers, John -- http://mail.python.org/mailman/listinfo/python-list
