SQL where in clause using column in pandas dataframe

Convert the series to string

str = ','.join([str(x) for x in df1['IDs'].tolist()])

str
'1,2,3,4,5,6'

And, then insert it into the query string -

qry = "Select id, SUM(revenue) AS revenue WHERE id IN (%s) Group by 1" % str

qry
'Select id, SUM(revenue) AS revenue WHERE id IN (1,2,3,4,5,6) Group by 1'