SyntaxError: python语法无效(无法运行代码)

Question

L = ["hello", "good day", "hi", "see you", "ciao", "au revoir"]
L.insert(0, L.pop())
print (L)
list(map(len, L[2::2]) 
print (L)
File "<ipython-input-90-36e680b90dd3>", line 5
print (L)
^
SyntaxError: invalid syntax

在运行代码时，我得到这个错误

Answer 1

list(map(len, L[2::2])中缺少)

应该是list(map(len, L[2::2]))