How do you change the data type of a list in python?
I would like to do something like this Show
i.e. a list full of str to a list full of int any easy way to do it for nested lists, i.e. change the type [['1'],['2']] -> int asked Sep 14, 2011 at 20:18
biosbios 9573 gold badges11 silver badges19 bronze badges 1 Python 2:
...
In Python 3, map() returns a map object, so you need to convert it to a list:
...
RNHTTR 1,9322 gold badges14 silver badges30 bronze badges answered Sep 14, 2011 at 20:20
Dan D.Dan D. 71.4k13 gold badges98 silver badges118 bronze badges 5 List comprehensions should do it:
Nested:
answered Sep 14, 2011 at 20:31
Steven RumbalskiSteven Rumbalski 43k8 gold badges85 silver badges117 bronze badges 3 Here is a fairly simple recursive function for converting nested lists of any depth:
answered Sep 14, 2011 at 20:33
Andrew ClarkAndrew Clark 195k33 gold badges263 silver badges296 bronze badges
answered Sep 14, 2011 at 20:21
Cat Plus PlusCat Plus Plus 122k26 gold badges195 silver badges222 bronze badges Just as a comment to the answers here which use answered Apr 13, 2018 at 12:02
tsandotsando 4,1442 gold badges31 silver badges34 bronze badges
works for arbitrarily deeply nested lists:
answered Sep 14, 2011 at 20:29
Tim PietzckerTim Pietzcker 318k56 gold badges493 silver badges549 bronze badges
answered Oct 17, 2017 at 13:07
YashYash 1,5031 gold badge17 silver badges22 bronze badges 0 How do you change the datatype of a list in Python?In Python, Both tuple and list can be converted to one another. It can be done by using the tuple() and list() method.
What is the data type of a list in Python?List. Lists are used to store multiple items in a single variable. Lists are one of 4 built-in data types in Python used to store collections of data, the other 3 are Tuple, Set, and Dictionary, all with different qualities and usage.
How do you change an element in a list?Below are the methods to replace values in the list.. Using list indexing.. Using for loop.. Using while loop.. Using lambda function.. Using list slicing.. How do I modify a list?Edit a single item in list view. Open the list you want to edit.. Select the item, and then on the list's command bar, click Edit .. Enter the information in the list item. You may see a custom form instead of the default list form. ... . For items with attachments, do one or more of the following: ... . Click Save.. |