Try list(newdict.keys()) . This will convert the dict_keys object to a list. ... Obviously, insertion operators may not work, but that doesn't ... ... <看更多>

需要注意的是items 是一次性返回了所有的key value，会有和range 一样的问题，所以dict 还提供了一个iteritems 方法，遍历效率更高。 此外，dict 还包含了 ... ... <看更多>

The only possible improvement I see is to avoid unnecessary dictionary lookups by iterating over key-value pairs: ids = list() first_names = set() ... ... <看更多>

This video explains two techniques of converting list elements into dictionary in Python. Link for how to ... ... <看更多>