Python Replace Item In List 6 Different Ways Datagy
In the next section you ll learn how to replace multiple values in a Python list Replace Multiple Values in a Python List There may be many times when you want to replace not just a single item but multiple items This can be done quite simply using the for loop method shown earlier
Change Multiple Items In A List At One Time In Python, Can I change multiple items in a list at one time in Python ion1 For example my list is lst 0 0 0 0 0 I want to the third and fifth item become 99 I know I can do it by lst 2 99 lst 4 99 However is there any easier way to do this ion2 in the situation my target value is 99 98 my index is 2 4 so my result would
Python Finding And Replacing Elements In A List Stack Overflow
gt gt gt a 1 2 3 4 5 1 2 3 4 5 1 gt gt gt item to replace 1 gt gt gt replacement value 6 gt gt gt indices to replace i for i x in enumerate a if x item to replace gt gt gt indices to replace 0 5 10 gt gt gt for i in indices to replace
Replace Multiple List Elements At The Same Time Python , 2 Answers Sorted by 2 If you ve a python list you can do something like this toReplace 0 5 7 targetIndices 11 99 2 for i j in zip toReplace targetIndices a i b j If you ve a numpy array it s even simpler a toReplace b targetIndices i e a 0 5 7 b 11 99 2 Share Improve this answer Follow
Replace Multiple Elements In A List With A Single Element
Replace Multiple Elements In A List With A Single Element, 1 a list comprehension an option mylist a b c new list x if x not in quot ab quot else quot z quot for x in mylist print new list z z c if the elements you want to replace are more complicated you could try if x not in quot a quot quot b quot if you want to change things based on the index i you can use enumerate
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How To Replace Multiple Items In A List In A Single Statement In Python
How To Replace Multiple Items In A List In A Single Statement In Python You can assign values to multiple python list elements in single line like this a 0 10 a 0 a 3 a 6 a 9 phase new first event mid event tail event gt gt gt a phase new 0 0 first event 0 0 mid event 0 0 tail event In case you ve a list of values and indices to replace you can do it using list comprehension
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I want to replace an element in a list with multiple elements So for example I have the list a b c and want to replace b with d e which would give me the list a d e c I have the following code a if item b else item for item in a How do I proceed Python Replacing Element In List With Multiple Elements Stack Overflow. To better understand how to replace items in a Python list you ll see the following 3 scenarios about Replacing an item with another item Replacing multiple items with another item Replacing multiple items with multiple items To replace them just generate a new one containing d lists selected with l items d item for item in l If you are not sure that all items in l are keys in d you can add test before trying to get from d d item for item in l
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