Interactions

import numpy as np

data = np.genfromtxt('data.txt', delimiter='\t', dtype='str')

genes = data[1:,0]
interactions = data[1:,2]

query = ''  # Insert interaction in quotes

counts = {}

for x in range(0, len(genes)):
    if genes[x] in counts:
        if interactions[x] == query:
            counts[genes[x]] += 1
        else:
            pass
    else:
        counts[genes[x]] = 0