hashable
Why can't I use a list as a dict key in python? Exactly what can and cannot be used, and why?
I found that the following are all valid: >>> d = {} >>> d[None] = \'foo\' >>> d[(1, 3)] = \'baz\'[详细]
2023-03-31 19:48 分类:问答Using @functools.lru_cache with dictionary arguments
I have a method that takes (among ot开发者_StackOverflowhers) a dictionary as an argument. The method is parsing strings and the dictionary provides replacements for some substrings, so it doesn\'t ha[详细]
2023-03-13 08:10 分类:问答Network Connection Warning
The Tweetie (now Twitter) app has a pop up Network Reachability warning. This also done in the Foursquare and Hashable apps (as far as I know). Is there example code of this implementa开发者_StackOver[详细]
2023-02-02 04:48 分类:问答Check for mutability in Python?
Consider this code: a = {...} # a is an dict with arbitrary contents b = a.copy() What role does mutability play in the keys and values of the dicts?[详细]
2023-01-29 09:26 分类:问答《女人不是月亮》MP3歌词-毛阿敏?
女人不是月亮 毛阿敏 语种:国语 本歌词于吾爱知道收集www.qkoufu.com 女人不是月亮 - 毛阿敏 (Leotta Mo)[详细]
2022-12-24 20:09 分类:问答