Python documentation
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Sorting Techniques — Python 3.14.6 documentation
>>> sorted("This is a test string from Andrew".split(), key=str.casefold) ['a', 'Andrew', 'from', 'is', 'string', 'test', 'This'] The value of the key parameter should be a function (or other callable) that takes a single argument and returns a key to use for sorting purposes. This technique is fast because the key function is called exactly once for each input record. A common pattern is to sort complex objects using some of the object’s indices as keys. For example:
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How to Sort a String in Python | Analytics Vidhya
October 17, 2024 - How to Sort a String in Python? Characters in specific orders, utilizing methods like sorted() function, bubble sort, and list sort().
python - How to sort a list of strings? - Stack Overflow
What is the best way of creating ... list in Python? ... Use locale and it's string collation methods to sort naturally according to current locale. ... Save this answer. ... Show activity on this post. ... This modifies your original list (i.e. sorts in-place). To get a sorted copy of the list, without changing the original, use the sorted() function: ... However, the examples above are ... More on stackoverflow.com
How to sort a list of strings according to a substring contained within each strings?
Sort by name first, then sort by length. data.sort() # sort by name data.sort(key=len) #sort by length You could combine those 2 steps into 1 with a lambda function that returns a tuple of (length, name) if you want to be fancy. More on reddit.com
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June 17, 2022How does numeric string sorting work in python?
You are not sorting numbers though, you have a list of strings that may contain numbers, but they are still strings, so normal lexicographic order is used. More on reddit.com
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March 7, 2023How to sort a string alphabetically?
''.join(sorted(str)) More on reddit.com
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February 13, 2021Videos
How to Sort a List Alphabetically in Python | Sorting List in ...
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Sort a list by 'number' values in strings - Python - YouTube
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Sorting integer and string lists in Python - YouTube
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Python How To Sort a List - Strings, Numbers, and Dictionaries ...
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Sorting a mix of letters and numbers in Python - YouTube
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Python Radix Sort Tutorial: Sorting Strings Made Easy - YouTube
Real Python
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How to Use sorted() and .sort() in Python – Real Python
February 24, 2025 - If you’re curious about how sets work in Python, then you can check out the tutorial Sets in Python. Just like lists, tuples, and sets, strings are also iterables. This means you can sort str types as well. The example below shows how sorted() iterates through each character in the value ...
Google
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Python Sorting | Python Education | Google for Developers
## Say we have a list of strings we want to sort by the last letter of the string. strs = ['xc', 'zb', 'yd' ,'wa'] ## Write a little function that takes a string, and returns its last letter.
Spark By {Examples}
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How to Sort List of Strings in Python - Spark By {Examples}
May 31, 2024 - For example, the sort() method is called on the my_list object, and it sorts the elements of the list in ascending order. If you want to sort the list in descending order, you can use the reverse=True parameter · In this article, I have explained ...
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Python String Sort - Spark By {Examples}
May 21, 2024 - You can sort a string in Python using many ways, for example, by using join(), sorted(), reduce(), lambda, and for loop.
W3Schools
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Python sorted() Function
Remove List Duplicates Reverse a String Add Two Numbers · Python Examples Python Compiler Python Exercises Python Quiz Python Challenges Python Practice Problems Python Server Python Syllabus Python Study Plan Python Interview Q&A Python Bootcamp Python Training ... The sorted() function returns a sorted list of the specified iterable object.
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Basic answer:
Copymylist = ["b", "C", "A"]
mylist.sort()
This modifies your original list (i.e. sorts in-place). To get a sorted copy of the list, without changing the original, use the sorted() function:
Copyfor x in sorted(mylist):
print x
However, the examples above are a bit naive, because they don't take locale into account, and perform a case-sensitive sorting. You can take advantage of the optional parameter key to specify custom sorting order (the alternative, using cmp, is a deprecated solution, as it has to be evaluated multiple times - key is only computed once per element).
So, to sort according to the current locale, taking language-specific rules into account (cmp_to_key is a helper function from functools):
Copysorted(mylist, key=cmp_to_key(locale.strcoll))
And finally, if you need, you can specify a custom locale for sorting:
Copyimport locale
locale.setlocale(locale.LC_ALL, 'en_US.UTF-8') # vary depending on your lang/locale
assert sorted((u'Ab', u'ad', u'aa'),
key=cmp_to_key(locale.strcoll)) == [u'aa', u'Ab', u'ad']
Last note: you will see examples of case-insensitive sorting which use the lower() method - those are incorrect, because they work only for the ASCII subset of characters. Those two are wrong for any non-English data:
Copy# this is incorrect!
mylist.sort(key=lambda x: x.lower())
# alternative notation, a bit faster, but still wrong
mylist.sort(key=str.lower)
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It is also worth noting the sorted() function:
Copyfor x in sorted(list):
print x
This returns a new, sorted version of a list without changing the original list.
datagy
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Python: Sort a String (4 Different Ways) • datagy
December 19, 2022 - Learn how to use Python to sort a string including how to sort strings using the sorted function, with case sensitivity or insensitivity.
EDUCBA
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Sort string in Python | Working of Sort string in Python | Examples
April 12, 2023 - The sort string in python accepts a string as a parameter, then each character of the string compare based on the ASCII value of the characters and then return the list of sorted characters of the string. ... Example for sorting the string using python built in sorted() method.
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GeeksforGeeks
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Python Program to Sort a String - GeeksforGeeks
July 11, 2025 - sorted() function is the most efficient way to sort a string. It returns a sorted list of characters which we can then join back into a single string. This method is concise and efficient as it uses Python's built-in functions.
Stanford CS
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Python Sorting
>>> sorted(strs, reverse=True) ['zebra', 'donut', 'banana', 'apple'] By default in Python, uppercase chars come before lowercase chars, so uppercase strings will sort to the front of the list:
GeeksforGeeks
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How to sort a list of strings in Python - GeeksforGeeks
July 11, 2025 - Explanation: key=len sorts the strings based on their length in ascending order. We can also use any custom sorting logic using a key function.
Programiz
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Python Program to Sort Words in Alphabetic Order
To understand this example, you should have the knowledge of the following Python programming topics: ... In this example, we illustrate how words can be sorted lexicographically (alphabetic order). # Program to sort alphabetically the words form a string provided by the user my_str = "Hello this Is an Example With cased letters" # To take input from the user #my_str = input("Enter a string: ") # breakdown the string into a list of words words = [word.lower() for word in my_str.split()] # sort the list words.sort() # display the sorted words print("The sorted words are:") for word in words: print(word)
Note.nkmk.me
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Sort a List, String, Tuple in Python: sort, sorted | note.nkmk.me
August 17, 2023 - In Python, there are two ways to sort a list in ascending or descending order: the sort() method and the built-in sorted() function. To sort a string (str) or tuple, use sorted(). Sort a list using th ...
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Sort a List of Numeric Strings in Python | note.nkmk.me
January 31, 2024 - Note that the following sample code uses sorted(), but sort() works similarly. l = ['10', '01', '05'] print(sorted(l)) # ['01', '05', '10'] ... A list of numeric strings that are not zero-padded is sorted alphabetically, not numerically.
Scaler
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Sort a String in Python - Scaler Topics
April 7, 2024 - This article by Scaler topics will discuss about how to sort a string in Python. Sorting a string using a while loop and for a loop.
Python Guides
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How To Sort A String In Python?
March 19, 2025 - This can be particularly useful when you need to rearrange characters in a specific order, such as sorting alphabetically or in reverse order · string = "California" sorted_string = ''.join(sorted(string)) print( sorted_string) ...
Reddit
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r/learnpython on Reddit: How to sort a list of strings according to a substring contained within each strings?
June 17, 2022 -
I have a list of strings, which are the file names in a folder, that looks something like this:
['data_page10of10.png', 'data_page1of10.png', 'data_page2of10.png', 'data_page3of10.png', 'data_page4of10.png', 'data_page5of10.png', 'data_page6of10.png', 'data_page7of10.png', 'data_page8of10.png', 'data_page9of10.png' ]
How can I sort this list so that it goes page1, page2, page3... (instead of page10 being at the front)? Also, I don't know that there will necessarily be 10 pages in the folder.
I'm guessing that I want to look at the substring that occurs between "page" and "of" for each one, and then sort them by that. How would I do this?
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Sort by name first, then sort by length. data.sort() # sort by name data.sort(key=len) #sort by length You could combine those 2 steps into 1 with a lambda function that returns a tuple of (length, name) if you want to be fancy.
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socal_nerdtastic's solution is very clever and totally works, but in case you were looking for something more overengineered: import re data.sort(key=lambda x: int(re.search(r'(page)(\d*)(of)', x)[2])) re is the regular expression module in Python. sort can take a key argument as a function which returns the value to sort the contents of a list by, by passing each element in the list to the function. A lambda is an in-place function definition. This example has one input argument, x, which sort will pass each element of the list as. re.search checks a given string for a given pattern and returns a Match object which can be indexed for parts of the string that were matched to the pattern. Check this link for a breakdown of how this particular pattern works. The pattern is the first argument for re.search and x is the second, since x will be each of the elements in your list. [2] corresponds to the index of the number between "page" and "of", so it's casted to an integer with int and then sort can use the integers from each element in the list to sort it. The same example, without the lambda: import re def first_num(filename): return int(re.search(r'(page)(\d*)(of)', filename)[2]) data.sort(key=first_num)
Intellipaat
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How to Sort a String in Python? - Intellipaat
February 3, 2026 - The sorted string is returned and printed. In this specific example, the input string “intellipaat” is sorted to “aaeiillnptt”. Learn what the functools module is in Python and how ...