Callbacks not called in pyosmium's diff downloader

Question

For some reason, this code does not print any nodes, ways, or relations, even though it clearly does download the minute updates from OpenStreetMap:

import logging
import osmium
from osmium.replication.server import ReplicationServer

logging.basicConfig(level=logging.DEBUG)

class Handler(osmium.SimpleHandler):
    def __init__(self):
        super(Handler, self).__init__()

    def node(self, n):
        print('n', n.id)

    def way(self, w):
        print('w', w.id)

    def relation(self, r):
        print('r', r.id)

h = Handler()
rs = ReplicationServer('http://planet.openstreetmap.org/replication/minute')
rs.apply_diffs(h, 2112110, 0.4*1024)

Result:

$ python3 osm2rdf.py
DEBUG:pyosmium:Downloaded change 2112110. (86 kB available in download buffer)
DEBUG:pyosmium:Downloaded change 2112111. (36 kB available in download buffer)
DEBUG:pyosmium:Downloaded change 2112112. (4 kB available in download buffer)
DEBUG:pyosmium:Downloaded change 2112113. (-139 kB available in download buffer)

Process finished with exit code 0

Note that there hasn't been a single 'n', 'w', or 'r' printed after change downloading.

Answer 1

Turns out it was a bug in the pyosmium itself. Closing.