how to use str.replace() as the function in map()

Question

I have a list of rows returned from an excel sheet. I want to use the replace function on each item in row to replace ' with \'

however, this does not work:

row = map(replace('\'', "\\'"), row)

this just gives an error about replace taking at most 3 arguments but only having 2.

is there a way to use replace with map in python?

Answer 1

map( lambda s: s.replace(...), row )

or use a list comprehension

[s.replace(...) for s in row]

Answer 2

The idiomatic Python here is probably to use a list comprehension:

row = [ x.replace('\'', "\\'") for x in row ]