Replacing the value in the list
List
a=[5,6,7,5,8,7]
replace 7 with 3
required output
[5,6,3,5,8,7]
Condition?
With out slice?
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In this link if list have 2 or more value of same number all numbers are replaced but i want to change only specific location value? – Ashok Kumar Reddy Kummetha Aug 01 '19 at 17:26
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Just use the index.... Thats primarily what `[ ]` is for. `my_list[2] = 3`. If you have trouble with this you should really just follow a tutorial on python. (Technically this is a standard feature for almost all core languages) – Error - Syntactical Remorse Aug 01 '19 at 17:41
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@Ashokkumarreddy What you indicate in your comment does not match the example you provide in your question – eyllanesc Aug 01 '19 at 17:45
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@Ashokkumarreddy From your edition I understand that if there are several items with the same value (in your example "7") you only want to change the first value. Am I correct? If so, then use: `for n, i in enumerate(a):` `if i == 7:` `a[n] = 3` `break` – eyllanesc Aug 02 '19 at 04:17
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possible duplicate: https://stackoverflow.com/questions/2582138/finding-and-replacing-elements-in-a-list – foobar Apr 09 '20 at 13:04
1 Answers
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You can use a list comprehension:
[3 if x==7 else x for x in a]
Carsten
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i want to replace only specified location value that i want to replace with given value – Ashok Kumar Reddy Kummetha Aug 01 '19 at 17:23
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If you want to change a location (e.g. the first element), you can use `a[0] = 3` – Carsten Aug 02 '19 at 06:58