Home/ Questions/Q 8657933
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-12T15:38:37+00:00

There’s a list as follows: list = [] . and then assuming x =

  • 0

There’s a list as follows: list = [].

and then assuming x = 'A', what does list = list + [x] mean? Is that only for characters? If so, how can it be adapted for integers?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    lis=lis+[x] means add 'a' to [] and then store the new list ['a'] in lis on the LHS

    but doing it this way creates new object everytime:

    In [38]: x='a'

In [39]: lis=[]

In [40]: id(lis)
Out[40]: 154680492

In [41]: lis=lis+[x]

In [42]: lis
Out[42]: ['a']

In [43]: id(lis)
Out[43]: 154749100

    Better use lis+=[x] or lis.extend(x)

    • 0