### Summary We have some functions in `filemanip` that exist because they were not handled in the standard library or included features that we wanted to backport. We should go through and assess what can/should be deprecated and removed. * [ ] Deprecate `filemanip.which` in favor of `shutil.which`, including suggestions on necessary changes * [ ] `path_resolve()` seems to be a backport of Python 3.6's `pathlib.Path.resolve()` * [ ] `relpath()` seems to be a backport of `os.path.relpath`. Not sure when that was added. Others?