import collections
import numpy as np

pairs = []
Pair = collections.namedtuple('Pair', ['hash', 'gas'])
pairAlls = [('0x034c9e7f28f136188ebb2a2630c26183b3df90c387490159b411cf7326764341', 21000),
(u'0xffda7269775dcd710565c5e0289a2254c195e006f34cafc80c4a3c89f479606e', 1000000),
(u'0x90ca439b7daa648fafee829d145adefa1dc17c064f43db77f573da873b641f19', 90000),
(u'0x7cba9f140ab0b3ec360e0a55c06f75b51c83b2e97662736523c26259a730007f', 40000),
(u'0x92dedff7dab405220c473aefd12e2e41d260d2dff7816c26005f78d92254aba2', 21000)]

for k, v in pairAlls:
    a= Pair(k, int(v))
    pairs.append(a)

print(min(pairs, key=lambda pair: pair.gas))
print(max(pairs, key=lambda pair: pair.gas))

gases = np.array([pair.gas for pair in pairs])
medianGasIndex = np.where( gases == np.median(gases) )[0][0]
print(pairs[medianGasIndex])