__bool__ = __nonzero__ not detected

描述

class Foo(object):
    def __nonzero__(self):
        return True
    __bool__ = __nonzero__

from builtins import object
class Foo(object):
    def __bool__(self):
        return True
    __bool__ = __nonzero__

  File "test.py", line 2, in <module>
    class Foo(object):
  File "test.py", line 5, in Foo
    __bool__ = __nonzero__
NameError: name '__nonzero__' is not defined

貢獻者指南

技術棧

python

領域

developer experiencetooling

議題類型

bug

難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。

3

預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。

1-3 hours

活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。

stale

清晰度議題是否清楚說明預期改動、驗收標準和下一步。

clear

前置要求

Python 2 vs 3python future librarydunder methods

新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。

50

研究方向

Examine the futurize tool's translation logic for special methods, likely in the 'libfuturize' or 'future' source code. The bug occurs when nonzero is defined and bool is assigned as a class attribute; the tool incorrectly translates both. The fix should remove the assignment and convert nonzero to bool as the sole method. Review existing comments on the issue for additional context.