pandas - how to make data frame's list rows to string?

Question

I have a dataframe each row is a list like this:

   word_count   id  token
    0       6   0   [customer, executive]
    1       6   0   [purchase]
    2       6   0   [purchase, agent]
    3       6   0   [housekeeping]
    4       6   0   [night, auditor, &, guest, reception, agent]

I wanna convert the list to string like this:

  word_count id token
0       6   0   customer executive
1       6   0   purchase
2       6   0   purchase agent
3       6   0   housekeeping
4       6   0   night auditor & guest reception agent

I did the following method but when I see de.head() nothing change:

for index, row in de.iterrows():
    row['token']=' '.join(str(e) for e in row['token'])
de.head()

and

for index, row in de.iterrows():
    row['token']=' '.join(row['token'])
de.head()

and

for index, row in de.iterrows():
    row['token']=' '.join(row['token']).replace(',' ,' ')
de.head()

question from:https://stackoverflow.com/questions/65850200/how-to-make-data-frames-list-rows-to-string

Answer 1

List comprehension:

df['token'] = [' '.join(x) for x in df['token']]

Or apply:

df['token'] = df['token'].apply(' '.join)