Using bottle.ResourceManager to serve static files with `bottle.static_file`

gistfile1.py

import os

import bottle

# consider root folder with:
# path1/file1.txt
# path2/file2.txt
# path3/file3.txt

rm = bottle.ResourceManager()
rm.add_path('path1/')
rm.add_path('path2/')

@bottle.route('/s/<filepath:path>')
def sr(filepath):
    path_ = rm.lookup(filepath)
    root, file_ = os.path.split(path_)
    return bottle.static_file(file_, root)


if __name__ == '__main__':
    bottle.debug(True)
    bottle.run(reloader=True)

gistfile2.txt

$ curl http://localhost:8080/s/file1.txt
file1
$ curl http://localhost:8080/s/file2.txt
file2
$ curl http://localhost:8080/s/file3.txt
[error]
$ curl http://localhost:8080/s/path3/file3.txt
[error]