cs-l23.py

# n1
read_file = (lambda filename: (lambda file: [list(__import__("csv").reader(file)), file.__exit__()][0])(open(filename).__enter__()))
print(read_file("test.csv"))

# n2
print(read_file("test.csv")[1][1])

# n3
print(list(map(lambda r: list(map(float, r)), read_file("test.csv"))))

# n4
print("your underage" if int(input("enter your age\n> ")) < 18 else "your not underage")

# n5
print(*[1,2,3,4,5], sep="\n")

# n6
print([(lambda: (a := 1))(), a][1])  # will error as `a` is local to the lambda
print([(a:=2), (lambda: a)()][1])  # wont error as `a` is in the scope of the lambda

test.csv