如何获取字符串中的名称？

Question

获取目录的姓氏：

str = "/folderA/folderB/folderC/folderD"
editstr = str.split("/")[-1]
print(editstr)

folderD

如何获取folderD之前的所有目录（没有最后的斜杠）？例如：

editstr = ???
print(editstr)

/folderA/folderB/folderC

Answer 1

您可以使用^{}：

>>> editstr = str.rsplit('/folderD', 1)[0]
>>> print(editstr)
/folderA/folderB/folderC

Answer 2

There is a module for this.

>>> import os
>>> s = "/folderA/folderB/folderC/folderD"
>>> os.path.basename(s)
'folderD'
>>> os.path.dirname(s)
'/folderA/folderB/folderC'