Combine pandas DataFrame query() method with isin()

Question

So I want to use isin() method with df.query(), to select rows with id in a list: id_list. Similar question was asked bef

Answer 1

This appears to work:

>>> df.query('a == {0}'.format(id_list))
   a  b  c  d
0  a  a  4  1
1  a  a  0  7
2  b  a  2  1
3  b  a  0  1
4  c  b  4  0
5  c  b  4  2

Whether or not it is more clear is a matter of personal taste.