python - 缩进包裹的、带括号的 if 条件时的样式

Question

假设我有这个功能

def func(arg1):
    if (arg1 > 5
        and arg1 != 10):
        return "something"

对于 if ( 我该怎么办是 4 个字符长，从而使“返回”位看起来很奇怪(并且可能具有误导性)？请不要说把if内容在 1 行，在我的实际代码中，内容超过 79 个字符。

我想到了几个选择:

A)

def func(arg1):
    if (arg1 > 5
        and arg1 != 10
        ):
        return "something"

B)

def func(arg1):
    if (
        arg1 > 5
        and arg1 != 10
    ):
        return "something"

题外话，但是孤儿):看起来像一张不高兴的脸:(

Answer 1

PEP 8 recommends a double-indent in similar cases ，我认为看起来不错:

def func(arg1):
    if (arg1 > 5
            and arg1 != 10):
        return "something"

但是

This PEP explicitly takes no position on how or whether to further visually distinguish continuation lines after multi-line if statements.

因此您实际上可以根据它使用任何可接受的选项:

# No extra indentation.
if (this
    and that):
    do_something()

# Add a comment, which will provide some distinction in editors
# supporting syntax highlighting.
if (this
    and that):
    # Since both conditions are true, we can frobnicate.
    do_something()


# Add some extra indentation on the conditional continuation line.
if (this
        and that):
    do_something()