test.py

import yaml
from os.path import expanduser

home = expanduser("~")
my_config = open(home + '/.secrets/codingmode/secrets.d/hue.yml')
my_config_dict = yaml.load(my_config.read(), Loader=yaml.FullLoader)
result = map(lambda x : x['Prompt'] # return prompt associated with variable \
        if x['Variable']  \
            == 'user_email' \
        else \
            None \
        , my_config_dict)
print(list(r for r in result if r)) # list comprehension, remove all Nones