Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Python Collections (Retired) Dictionaries Membership

Write a function named members that takes two arguments, a dictionary and a list of keys.

am stuck here. i keep getting "bummer!" with no explanation

def members (my_dict, my_keys):
    count = 0
    for key in my_dict:
      if key in my_keys:
         count += 1
return count
# "key in dict" syntax from lists.

### Example
# my_dict = {'apples': 1, 'bananas': 2, 'coconuts': 3}
# my_list = ['apples', 'coconuts', 'grapes', 'strawberries']
# members(my_dict, my_list) => 2

1 Answer

Hi Mayamiko,

Check the indentation on the return statement. Fixing that should pass the challenge.


duh! thanks, that did it