为什么 str.lstrip 去掉一个额外的字符?

本文介绍了为什么 str.lstrip 去掉一个额外的字符?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

s = s.removeprefix("/Volumes")

>>> path = "/Volumes/Users"
>>> path.lstrip('/Volume')
's/Users'
>>> path.lstrip('/Volumes')
'Users'
>>>

I expected the output of path.lstrip('/Volumes') to be '/Users'

解决方案

lstrip is character-based, it removes all characters from the left end that are in that string.

To verify this, try this:

"/Volumes/Users".lstrip("semuloV/")  # also returns "Users"

Since / is part of the string, it is removed.

You need to use slicing instead:

if s.startswith("/Volumes"):
    s = s[8:]

Or, on Python 3.9+ you can use removeprefix:

s = s.removeprefix("/Volumes")

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