删除整数列表中项目之间的空格

Question

a=[1, 2, 3, 4]

how to make it

a=[1,2,3,4]

Split and replace wont work as it is an integer list.

Answer 1

The spaces are not part of your object which means that you can not remove them. That's just a representation choice. eg

>>> a=[1,2,3,4] 
>>> a
[1, 2, 3, 4]

But if you want to print your list in string mode you can use str.replace() :

>>> str(a).replace(' ','')
'[1,2,3,4]'