python - 为什么要导入带括号的语句？

Question

最近看到这样的导入

from module import (function, another_function, 
                    another_function)

似乎这样做是为了能够将 import 语句延伸超过一行。在这种情况下，我通常只是这样导入

from module import function, another_function, \
            another_function

在这种情况下，括号究竟在做什么，它们是否被认为是不好的做法？

Answer 1

作为 PEP 8 states :

The preferred way of wrapping long lines is by using Python's implied line continuation inside parentheses, brackets and braces. Long lines can be broken over multiple lines by wrapping expressions in parentheses. These should be used in preference to using a backslash for line continuation.