如何计算 Python->Pandas->DataFrame 中每个索引的值的数量

Question

I have the next DataFrame:

a = [{'x1':'a, b, c, d, e, f'}, {'x1':'a, b, c'}, {'x1':'a'}]
df = pd.DataFrame(a)
print(df)

I need to create the new column -> len_x1 in DataFrame and insert into it the amount of values in each cell.

I need the next result:

I will be grateful for help.

Answer 1

If possible count separator and add 1 use:

df['x1_len'] = df['x1'].str.count(',') + 1
print (df)
                 x1  x1_len
0  a, b, c, d, e, f       6
1           a, b, c       3
2                 a       1

Or count words:

df['x1_len'] = df['x1'].str.count('\w+')