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"""

``zip_replace`` replaces multiple calls to ``str.replace``::

>>> changes = [

... ('(', ' ( '),

... (')', ' ) '),

... (' ', ' '),

... ]

>>> expr = '(+ 2 (* 3 7))'

>>> zip_replace(expr, changes)

' ( + 2 ( * 3 7 ) ) '

"""

# tag::ZIP_REPLACE[]

from collections.abc import Iterable

FromTo = tuple[str, str] # <1>

def zip_replace(text: str, changes: Iterable[FromTo]) -> str: # <2>

for from_, to in changes:

text = text.replace(from_, to)

return text

# end::ZIP_REPLACE[]

def demo() -> None:

import doctest

failed, count = doctest.testmod()

print(f'{count-failed} of {count} doctests OK')

l33t = [(p[0], p[1]) for p in 'a4 e3 i1 o0'.split()]

text = 'mad skilled noob powned leet'

print(zip_replace(text, l33t))

if __name__ == '__main__':

demo()