How to split on second last slash?-CodePudding

I want to split a string on the second last slash,

so if I have a string like /tmp/fold/merge/annots I want to get /tmp/fold/ and merge/annots returned.

Same if I have /tmp/long/dir/fold/merge/annots I want to get /tmp/long/dir/fold/ and merge/annots

What's the best way to do this? I've tried rsplit and split a few times but not getting what I want

CodePudding user response：

String splitting works, but I would actually use pathlib for this.

import pathlib

p = pathlib.Path('/tmp/long/dir/fold/merge/annots')
p.parts[-2:]
# ('merge', 'annots')

If you need it as a path object,

result = pathlib.Path(*p.parts[-2:])

which can be converted directly to string if you need to use it that way specifically.

CodePudding user response：

like this?

l = '/tmp/fold/merge/annots'

latter = l.split('/',3)[-1]
former = l.replace(latter,'')

print(former)

CodePudding user response：

To split a string on the penultimate bar, try writing like this:

import pathlib

x = pathlib.Path('/tmp/long/dir/fold/merge/annots')
x.parts[-2:]