Python:repr 与反引号 [英] Python: repr vs backquote

问题描述

在python中，repr和反引号`(1的左边)有区别吗?

In python, is there a difference between repr and the backquote ` (left of 1)?

演示:

class A(object):
    def __repr__(self):
        return 'repr A'
    def __str__(self):
        return 'str A'


>>> a = A()

>>> repr(a)
#'repr A'

>>> `a`
#'repr A'

>>> str(a)
#'str A'

反引号只是调用 repr 吗?仅仅是为了方便吗?是否有明显的速度差异?

Do the backquotes just call repr? Is it simply for convenience? Is there any significant speed difference?

谢谢！

推荐答案

它们是 repr 的别名.它们具有完全相同的效果.

They're an alias for repr. They have the exact same effect.

但是，它们已被弃用并已在 Python 3 中删除.不要使用它们；使用 repr.

However, they're deprecated and have been removed in Python 3. Don't use them; use repr.

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