Python sort dictionary keys by letters and then numbers
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比如说我有一本这样的字典，
1 | d = {"John1" :"blah blah","John2" :"blah blah","John11" :"blah blah","Dave1" :"blah blah","Dave2" :"blah blah","Dave13" :"blah blah","Dave23" :"blah blah"} |
如果想把这个分类，就这样吧
1 | d = {"Dave1" :"blah blah","Dave2" :"blah blah","Dave13" :"blah blah","Dave23" :"blah blah","John1" :"blah blah","John2" :"blah blah","John11" :"blah blah", } |
有没有一种方法可以把这本字典的键按字母顺序排序，然后按数字排序？
请记住，对字典本身进行排序实际上不是数据结构的预期用途，但是如果您只是在查找字典键的已排序列表：
1 | sorted(d.keys()) |
在这里，您可以提供各种良好的排序功能，以满足您不断燃烧的愿望。：)
考虑到键的命名方式，排序函数可能看起来像…
1 2 3 4 5 6 | def my_key(item): alpha = ''.join(i for i in item if i.isalpha()) num = ''.join(i for i in item if i.isdigit()) if num: return (alpha, int(num)) return (alpha, 0) |
然后：
1 | sorted(d.keys(), key=my_key) |