apply a function on each elements of a list

Question

I want to apply a function to each element of a list. I want to avoid for loop here.

I have list of path names as output from tar.getnames(). I want to get list of filenames. Below is what I tried but I am getting error.

map(os.path.basename(), tar.getnames())

Error:

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
Input In [8], in <cell line: 1>()
----> 1 map(os.path.basename(), tar.getnames())

TypeError: basename() missing 1 required positional argument: 'p'

Answer 1

You need to pass a reference to the function os.path.basename and not what the function os.path.basename returns when called without arguments ():
Use map(os.path.basename, tar.getnames()).