How do I sort a Python list in descending order?

Python List Sort in Descending Order

Sorting a list in descending order becomes necessary when you need to prioritize elements based on their magnitude. To achieve this in Python, we delve into the details of the built-in sorting function.

How to Sort a List in Descending Order

Python provides a straightforward way to sort a list in descending order using the sorted() function:

sorted_timestamps = sorted(timestamps, reverse=True)

The reverse argument, set to True, reverses the sorting order, effectively sorting the list in descending order.

Alternatively, you can modify the original list in-place with the sort() method:

timestamps.sort(reverse=True)

Example

Consider the following list of timestamps:

timestamps = [
    "2010-04-20 10:07:30",
    "2010-04-20 10:07:38",
    "2010-04-20 10:07:52",
    "2010-04-20 10:08:22",
    "2010-04-20 10:08:22",
    "2010-04-20 10:09:46",
    "2010-04-20 10:10:37",
    "2010-04-20 10:10:58",
    "2010-04-20 10:11:50",
    "2010-04-20 10:12:13",
    "2010-04-20 10:12:13",
    "2010-04-20 10:25:38"
]

The sorted version of this list in descending order is:

["2010-04-20 10:25:38", "2010-04-20 10:12:13", "2010-04-20 10:12:13", "2010-04-20 10:11:50", "2010-04-20 10:10:58", "2010-04-20 10:10:37", "2010-04-20 10:09:46", "2010-04-20 10:08:22", "2010-04-20 10:08:22", "2010-04-20 10:07:52", "2010-04-20 10:07:38", "2010-04-20 10:07:30"]

Documentation

For further insights, refer to the official Python documentation on sorting:

• [Sorting HOW TO](https://docs.python.org/3/howto/sorting.html)

The above is the detailed content of How do I sort a Python list in descending order?. For more information, please follow other related articles on the PHP Chinese website!