Clean and filter a target dict

get_attributes.py

# Usage:
# 
# target_dict = {
#   'foo': 'value'
#   'baz': 'another_value'
# }
#
# attributes = ['foo', 'bar']
# new_dict = get_attributes(target_dict
# assert new_dict == { 'foo': 'value' }
#

def get_attributes(target_dict, attributes):
    return {attr: target_dict.get(attr) for attr in attributes if target_dict.get(attr)}