add setter for pathlib.stem

[thawn]

Feature or enhancement

Proposal:

It would be nice to have the option to modify the stem of a file name directly.

Say I have a Path '/tmp/myfile.npy':

file_path = Path('/tmp/myfile.npy')

if the file exists, I want to change the file name to '/tmp/myfile-1.npy', in order to avoid overwriting it, I currently need to do the following:

if file_path.exists():
    file_path = file_path.parents / (file_path.stem + '-1' + file_path.suffix)

It would be much cleaner, if I could instead just do the following:

if file_path.exists():
    file_path.stem += '-1'

Has this already been discussed elsewhere?

This is a minor feature, which does not need previous discussion elsewhere

Links to previous discussion of this feature:

No response

[ericvsmith]

By design Paths are immutable and hashable, so this can't be implemented. If it were implemented, they could no longer be used as dictionary keys, for example.

[thawn]

o.k. that makes sense

[thawn]

thanks for taking the time to explain the issue :-)