Differences between declaring a list & appending and list()

Question

This below appends the s to the list l

 s = pd.Series([1], name='foo')
 l = []
 l.append(s)

This only appends 1 to l

s = pd.Series([1], name='foo')
l = list(s)

How to implement the first script the best way without declaring a list and then appending?

I mean avoiding the message "The list creation could be rewritten as a list literal" from compilers. — boboo
– boboo, Commented Feb 6, 2019 at 15:21

hpaulj · Accepted Answer · 2019-02-06 17:18:04Z

1

[x] makes a list with x as an element.

list(x) makes a list produced by iterating over x. x has to be iterable, otherwise you'll get an error.

It is, in effect, [i for i in x], or

alist = []
for i in x:
   alist.append(i)

answered Feb 6, 2019 at 17:18

hpaulj

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