Sep 22, 2010 · 15 You're trying to use key functions with lambda functions. Python and other languages like C# or F# use lambda functions. Also, when it comes to key functions and according to the …

14 Add rich comparison operators to the object class, then use sort () method of the list. See rich comparison in python. Update: Although this method would work, I think solution from Triptych is …

Feb 16, 2010 · A good reason for in-place sort is a case where you want to sort the end of the list (that is already mostly sorted, perhaps by a less-expensive key function), and then pop the last value. Ran …

Aug 30, 2008 · 8 But how does this handle language specific sorting rules? Does it take locale into account? No, list.sort() is a generic sorting function. If you want to sort according to the Unicode …

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 ...

Since Python 3.7, dicts keep insertion order. So if you want to order a set but still want to be able to do membership checks in constant time, you can create a dictionary from the sorted list using …

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 …

May 13, 2010 · Sorting arrays in NumPy by column Asked 15 years, 7 months ago Modified 3 years, 6 months ago Viewed 567k times

I don't quite understand the syntax behind the sorted() argument: key=lambda variable: variable[0] Isn't lambda arbitrary? Why is variable stated twice in what looks like a dict?

Below example, we are sorting a list of tuple that holds the info abt time of certain event and actor name. We are sorting this list by time of event occurrence - which is the 0th element of a tuple.