# ANY - if any element evaluate to true # ALL - if all elements evaluete to true friends = [ {'name': 'Rolf', 'Location': 'Warszawa'}, {'name': 'Piotr', 'Location': 'Warszawa'}, {'name': 'Marek', 'Location': 'Warszawa'}, {'name': 'Tomasz', 'Location': 'Kraków'}, {'name': 'Zenek', 'Location': 'Warszawa'}, {'name': 'Stanislaw', 'Location': 'Warszawa'} ] yourlocation = input('Where are u?') friends_nearby = [friend for friend in friends if friend['Location'] == yourlocation ] if any(friends_nearby): # if there is at least one and False if empty print("u are not alone") if all(friends_nearby): print("u are not alone") #Values that evaluate to false """ 0 , 0.0 ... none [] () {} False """ #print(bool(0)) print(all([1, 2, 3, 4, 5])) print(all([0, 1, 2, 3, 4, 5]))
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