Mar 5, 2009 · I have a dictionary of values read from two fields in a database: a string field and a numeric field. The string field is unique, so that is the key of the dictionary. I can sort on the keys, but ...

Similar to the post you linked, this uses the key function of sorted to provide a custom sort order. iteritems() returns a (key, value) tuple, so that gets passed into lambda (x, y): y['position'], where …

7 I also think it is important to note that Python dict object type is a hash table (more on this here), and thus is not capable of being sorted without converting its keys/values to lists. What this allows is dict …

Jan 26, 2017 · From python 3.7.4 manual: "Performing list (d) on a dictionary returns a list of all the keys used in the dictionary, in insertion order". So insertion order is something which is preserved and we …

Python has supported the key= for .sort since 2.4, that is year 2004, it does the Schwartzian transform within the sorting code, in C; thus this method is useful only on Pythons 2.0-2.3. all of which are more …

Nov 22, 2025 · For example, just googling "python sort dictionary by value" and "python count words in string" get helpful results. For tips on this and more, see How to ask a good question.

In this case it's a lambda that fetches the corresponding dict value, but it can be pretty much anything. For example, you could use operator.itemgetter(1) or myDict.get as shown by other answers, or any …

I want to sort this dictionary d based on value of sub key key3 in descending order. See below:

Nov 5, 2010 · Use the key argument for sorted(). It lets you specify a function that, given the actual item being sorted, returns a value that should be sorted by. If this value is a tuple, then it sorts like tuples …

Oct 12, 2011 · This causes sorted to sort by value first, then by key for tie-breakers. reverse=True tells sorted to present the result in descending, rather than ascending order. See this wiki page for a great …