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imposm.parser – OpenStreetMap XML/PBF parser for Python¶

imposm.parser is a Python library that parses OpenStreetMap data in XML and PBF format. It has a simple API and it is fast and easy to use. It also works across multiple CPU/cores for extra speed.

Here is an easy example that parses an OSM file and counts all ways that are tagged as a highway.

from imposm.parser import OSMParser

# simple class that handles the parsed OSM data.
class HighwayCounter(object):
    highways = 0

    def ways(self, ways):
        # callback method for ways
        for osmid, tags, refs in ways:
            if 'highway' in tags:
              self.highways += 1

# instantiate counter and parser and start parsing
counter = HighwayCounter()
p = OSMParser(concurrency=4, ways_callback=counter.ways)
p.parse('germany.osm.pbf')

# done
print counter.highways

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