Minimal example how to read .osm.pbf file using Python & osmium
This minimal example uses the osmium
python binding to read an .osm.pbf
file and count the number of nodes, ways and relations.
First, we need to download a suitable dataset. For this example, we’ll be using kenya-latest.osm.pbf
which you can download from Geofabrik:
wget https://download.geofabrik.de/africa/kenya-latest.osm.pbf
Now we can run the script:
#!/usr/bin/env python3
import osmium as osm
class OSMHandler(osm.SimpleHandler):
def __init__(self):
osm.SimpleHandler.__init__(self)
self.node_count = 0
self.way_count = 0
self.relation_count = 0
def node(self, n):
self.node_count += 1
def way(self, w):
self.way_count += 1
def relation(self, r):
self.relation_count += 1
osmhandler = OSMHandler()
osmhandler.apply_file("kenya-latest.osm.pbf")
print(f'Number of nodes: {osmhandler.node_count}')
print(f'Number of way: {osmhandler.way_count}')
print(f'Number of relations: {osmhandler.relation_count}')
Example output:
Number of nodes: 29442019
Number of way: 3188550
Number of relations: 2225