Simple Pipeline Patteren using reduce method

pipleline.py

from functools import reduce

# creates pipeline object from list of callables
def make_pipeline(list_of_callables):
    return reduce(lambda f,g: lambda x: g(f(x)), list_of_callables)
  
add1 = lambda x: x+'1'  # Oprtaion 1 
add2 = lambda x: x+'2'  # Oprtaion 2
add3 = lambda x: x+'3'  # Oprtaion 3
add4 = lambda x: x+'4'  # Oprtaion 4 

# creating pipleline object to apply add1,add2,add3,add4 operations
# on inputdata
pipeline = make_pipeline([add1,add2,add3,add4])

print(pipeline('hi')) #passing data to pipleline + printing

>> hi1234