How to convert whole list of string into integer using python

Question

Having list like l1=['abc.123','abc.456','abc.789','abc.153'] I want to sort this list based on numbers which are suffixes. But for that reason I have to convert this string list into integer. How can we do that.

Desired output is : l1= [abc.123,abc.153,abc.456,abc.789]

Please provide enough code so others can better understand or reproduce the problem. — Community
– Community Bot, Commented May 27, 2022 at 4:54
sorted(my_lst, key = lambda x: x[-3:]) or even sorted(my_lst, key = lambda x: int(x[-3:])) — Onyambu
– Onyambu, Commented May 27, 2022 at 4:55
Does this answer your question? Sort list of strings by a part of the string — DYZ
– DYZ, Commented May 27, 2022 at 5:13

DYZ · Accepted Answer · 2022-05-27 05:23:36Z

1

The safest way is to sort on the integer value of the part after the period, not of the last three characters. This allows for strings with fewer or more digits.

sorted(my_lst, key = lambda x: int(x.split(".")[-1]))

edited May 27, 2022 at 5:23

answered May 27, 2022 at 5:12

DYZ

57.3k10 gold badges73 silver badges101 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Onyambu · Accepted Answer · 2022-05-27 04:58:15Z

0

If we know that the last 3 characters are digits we could do:

sorted(my_lst, key = lambda x: int(x[-3:]))
['abc.123', 'abc.153', 'abc.456', 'abc.789']

or even noting that the are 3 numeric characters, you can go ahead and use them:

sorted(my_lst, key = lambda x: x[-3:])
['abc.123', 'abc.153', 'abc.456', 'abc.789']

answered May 27, 2022 at 4:58

Onyambu

80.3k3 gold badges29 silver badges65 bronze badges

4 Comments

rrr Over a year ago

But this is not good practice to sort string based on the numbers because sort will not treat number as a digit it will treat them as a string so thats the reason first convert it into integer and the sort them .

Onyambu Over a year ago

@rrr. Look at my assumption. I am taking only the last 3 digits. Whether sorted as string/integer will be the same. Eg '000' is the smallest while '999' is the largest.

rrr Over a year ago

so I have to split the list

Onyambu Over a year ago

@rrr check the answe given below

Collectives™ on Stack Overflow

How to convert whole list of string into integer using python

2 Answers 2

Comments

4 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

4 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related