How to let Pool.map take a lambda function

Question

I have the following function:

def copy_file(source_file, target_dir):
    pass

Now I would like to use multiprocessing to exe

Answer 1

For Python2.7+ or Python3, you could use functools.partial:

import functools
copier = functools.partial(copy_file, target_dir=target_dir)
p.map(copier, file_list)