How do I add double quotes to every element in a list column in a pandas dataframe?

Question

I have the pandas dataframe df which contains the list column

0         1

foo       [foo,bar]

bar       [bar,foo]

What is an effective way to add double quotes to specific list element to make the output like this:

0         1

foo       ["foo","bar"]

bar       ["bar","foo"]

Kindly assume that there are more than 2 rows.

Answer 1

You can use the list comprehension:

df["1"] = [[f'"{j}"' for j in i] for i in df["1"]]

print (df)

                1

0  ["foo", "bar"]

1  ["bar", "foo"]

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