Better (Pseudo) Meta Python

gistfile1.py

import pandas as pd
import numpy as np
import itertools as it
import operator as o

df = pd.DataFrame(np.random.randint(1,10,size=(100,6)), columns=['a1', 'a2', 'b1', 'b2', 'c1', 'c2'])

q = map(lambda x: '&'.join(x), it.product(*[['{}({} == 2)'.format(op, i) for op in ['~', '']] for i in ['a1', 'a2']]))

for qi in q:
    print qi
    print df.query(qi)