lautze.py

lautze.py

lst = [(123, 456, 789), (123, 465, 789), (125, 456, 734)]
import numpy as np

#get unique IDs
fstuniq = np.unique([x[0] for x in lst])
snduniq = np.unique([x[1] for x in lst])
trduniq = np.unique([x[2] for x in lst])

print(fstuniq)
print(snduniq)
print(trduniq)

#get unique second IDs  where first ID equals value
value = 123
specfstsnduniq = np.unique([x[1] for x in lst if x[0] == value]) 
print(specfstsnduniq)