How to update or overwrite a python list

Question

aList    123   xyz    zara    abc   aList append 2014  print aList   which produces o p   123   xyz    zara    abc   2014   What should be done to overwrite update this list  I want the o p to be    2014   xyz    zara    abc

User · Answer

What about replace the item if you know the position:

aList[0]=2014

Or if you don't know the position loop in the list, find the item and then replace it

aList = [123, 'xyz', 'zara', 'abc']
    for i,item in enumerate(aList):
      if item==123:
        aList[i]=2014
        break
    
    print aList

User · Answer

I think it is more pythonic   aList remove 123  aList insert 0  2014    more useful   def shuffle list  to delete  to shuffle  index       list remove to delete      list insert index  to shuffle      return  list     a    b   shuffle list   a    c   0  print list  gt  gt    c    b

User · Answer

I m learning to code and I found this same problem  I believe the easier way to solve this is literaly overwriting the list like  kerby82 said   An item in a list in Python can be set to a value using the form  x n    v  Where x is the name of the list  n is the index in the array and v is the value you want to set   In your exemple   aList    123   xyz    zara    abc   aList 0    2014 print aList  gt  gt  2014   xyz    zara    abc

User · Answer

You may try this   alist 0    2014   but if you are not sure about the position of 123 then you may try like this   for idx  item in enumerate alist      if 123 in item         alist idx    2014

User · Answer

I would prefer it without enumerate and instead use  range  like this   for item in range 0  len alist       if 123 in alist item         alist item    2014   For those who are new to python it might be more readable and a little smarter to recap    Regards P

User · Answer

If you are trying to take a value from the same array and trying to update it  you can use the following code        condition                            ts        5a81625ba0ff65023c729022                                   5a8161ada0ff65023c728f51                                   5a815fb4a0ff65023c728dcd      If the collection is userData  condition    ts   and we need to       for i supplier in enumerate userData  condition    ts              supplier   ObjectId supplier          userData  condition    ts   i    supplier   The output will be     condition        ts       ObjectId  5a81625ba0ff65023c729022                                ObjectId  5a8161ada0ff65023c728f51                                ObjectId  5a815fb4a0ff65023c728dcd

[python] How to 'update' or 'overwrite' a python list

Examples related to python

Examples related to list

Examples related to overriding

Examples related to overwrite