如何忽略类型检查和服从行<80个字符

问题描述 投票:1回答:2

我有这种数据类型只是对相关数据进行分组。它应该是一个类似结构的东西,所以我选择了namedtuple

ConfigOption = namedtuple('ConfigOption', 'one two animal vehicle fairytale')

另一方面,namedtuple没有默认值,所以我居住在another answer提出的黑客攻击。

ConfigOption.__new__.__defaults__ = (1, 2, "White Horse", "Pumpkin", "Cinderella")

显然,这使得类型检查失败:error: "Callable[[Type[NT], Any, Any, Any, Any, Any], NT]" has no attribute "__defaults__"

由于我很清楚这是一个黑客,我告诉类型检查器所以使用内联注释# type: disable

ConfigOption.__new__.__defaults__ = (1, 2, "White Horse", "Pumpkin", "Cinderella")  # type: disable

此时......线路变得太长。我不知道如何打破这一行,以便它在语法上是正确的,同时使类型检查器跳过它:

# the ignore is on the wrong line
ConfigOption.__new__.__defaults__ = \
    (1, 2, "White Horse", "Pumpkin", "Cinderella")  # type: ignore

# unexpected indentation
ConfigOption.__new__.__defaults__ =  # type: ignore
    (1, 2, "White Horse", "Pumpkin", "Cinderella")

那么有没有办法从类型检查中排除单行,或者格式化这条长行,以便跳过类型检查,并且行长度是pep-8兼容的?

python pep8 namedtuple mypy
2个回答
2
投票

有什么不对:

option_defaults = (1, 2, "White Horse", "Pumpkin", "Cinderella")
ConfigOption.__new__.__defaults__ = option_defaults  # type: ignore

0
投票

Enum似乎遵循您所需的限制,并且非常简洁。

你可以使用Functional API,它本身就是semantics resemble namedtuple

>>> from enum import Enum
>>> Enum('ConfigOption', 'one two animal vehicle fairytale')
<enum 'ConfigOption'>
>>> ConfigOption = Enum('ConfigOption', 'one two animal vehicle fairytale')
>>> [c for c in ConfigOption]
[<ConfigOption.one: 1>, <ConfigOption.two: 2>, <ConfigOption.animal: 3>, <ConfigOption.vehicle: 4>, <ConfigOption.fairytale: 5>]
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