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# Functional Python, Challenge Task 3

Finally, make a variable named birth_dates. Use map() and filter(), along with your two functions, to create date strings for every datetime in birthdays so long as the datetime is more than 13 years old.

Having problems with the last task. Not sure how to use map/filter. Any assistance would be great. Thanks.

import datetime

birthdays = [ datetime.datetime(2012, 4, 29), datetime.datetime(2006, 8, 9), datetime.datetime(1978, 5, 16), datetime.datetime(1981, 8, 15), datetime.datetime(2001, 7, 4), datetime.datetime(1999, 12, 30) ]

today = datetime.datetime.today()

def is_over_13(dt): # compare total days delta = today - dt return delta.days >= 4745

def date_string(dt): return dt.strftime("%B %d")

birth_days = list(map((date_string(dt)), birthdays).filter((is_over_13(dt)), birthdays))

birthdays.py
```import datetime

birthdays = [
datetime.datetime(2012, 4, 29),
datetime.datetime(2006, 8, 9),
datetime.datetime(1978, 5, 16),
datetime.datetime(1981, 8, 15),
datetime.datetime(2001, 7, 4),
datetime.datetime(1999, 12, 30)
]

today = datetime.datetime.today()

def is_over_13(dt):
# compare total days
delta = today - dt
return delta.days >= 4745

def date_string(dt):
return dt.strftime("%B %d")

birth_days = list(map((date_string(dt)), birthdays).filter((is_over_13(dt)), birthdays))
```

```birth_dates = map(date_string, filter(is_over_13, birthdays))