Using variable and strings to create name with posixpath

Question

I want to create a path with python pathlib using a variable.

This is of course incorrect due to mixing of string and posixpath:

from pathlib import Path
stringvariable='aname'

Path(Path.cwd() / 'firstpartofname_' +stringvariable+ '.csv')

I know I could do it with os, or in two lines like this:

filename='firstpartofname_' + stringvariable + '.csv'
Path(Path.cwd() / filename)

but I want to learn how to use it directly with Path. Thanks

tripleee · Accepted Answer · 2020-10-22 13:28:53Z

2

You just need to add parentheses to force the + to happen before the /.

new = Path.cwd() / ('firstpartofname_' + stringvariable + '.csv')

answered Oct 22, 2020 at 12:48

tripleee

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1 Comment

:-) I cannot have you sleepless nights, so I fixed the spelling :-D

Alexander Stohr · Accepted Answer · 2024-06-27 13:23:23Z

0

you can solve it by making the right hand item a single f-string (all recent python versions do support that).

new = Path.cwd() / f"firstpartofname_{stringvariable}.csv"

answered Jun 27, 2024 at 13:23

Alexander Stohr

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