TypeError: 'dict_keys' object does not support indexing

Question

def shuffle(self, x, random=None, int=int):
    \"\"\"x, random=random.random -> shuffle list x in place; return None.

    Optional arg random is a 0-argument fu         


        

Answer 1

Convert an iterable to a list may have a cost. Instead, to get the the first item, you can use:

next(iter(keys))

Or, if you want to iterate over all items, you can use:

items = iter(keys)
while True:
    try:
        item = next(items)
    except StopIteration as e:
        pass # finish