Flipping lines of text in a functional style, in Python 2. E.g. for reflecting ASCII art left-to-right.

flip_text.py

import functools

def compose(*functions):
    "Compose multiple functions together. See https://mathieularose.com/function-composition-in-python/"
    return functools.reduce(lambda f, g: lambda x: f(g(x)), functions)

# More limited case of just two functions:
#def compose2(f, g):
#    return lambda x: f(g(x))

def flip(text):
    return "\n".join(map(compose("".join, reversed), text.split('\n')))

# or without using function composition:
#def flip2(text):
#  return "\n".join(["".join(reversed(line)) for line in text.split('\n')])

flip("foo\nbar")
# 'oof\nrab'