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Python Functional Python Functional Workhorses Filter

Tarek Singh
PLUS
Tarek Singh
Courses Plus Student 3,653 Points
Posted by Tarek Singh
Tarek Singh
Courses Plus Student 3,653 Points

can't find the solution

Can anyone help me out please

filters.py 
import datetime

dates = [
    datetime.datetime(2012, 12, 15),
    datetime.datetime(1987, 8, 20),
    datetime.datetime(1965, 2, 28),
    datetime.datetime(2015, 4, 29),
    datetime.datetime(2012, 6, 30),
]

def is_2012(dates):
  return dates.year == 2012

dt_2012 = list(filter(is_2012))
return dt_2012

1 Answer

Anish Walawalkar
Anish Walawalkar
8,534 Points
Anish Walawalkar
Anish Walawalkar
8,534 Points

Hey Tarek, you were on the right track. Just a few pointers:

  1. When you use the filter(func, iterable) function you have to pass it a function and an iterable (in your case the iterable is a list of datetime objects)
  2. The challenge asks you to return a generator so you don't need to convert the result returned by the filter function into a list
  3. You should only return inside of a function

so in code the solution looks like this:

import datetime

dates = [
    datetime.datetime(2012, 12, 15),
    datetime.datetime(1987, 8, 20),
    datetime.datetime(1965, 2, 28),
    datetime.datetime(2015, 4, 29),
    datetime.datetime(2012, 6, 30),
]

def is_2012(date):
  return date.year == 2012

dt_2012 = filter(is_2012, dates)