port replication update function to python

utils/osm_file_date.py

@@ -1,34 +0,0 @@
-#!/usr/bin/env python3
-
-import osmium
-import sys
-import datetime
-
-
-class Datecounter(osmium.SimpleHandler):
-
-    filedate = None
-
-    def date(self, o):
-        ts = o.timestamp
-        if self.filedate is None or ts > self.filedate:
-            self.filedate = ts
-
-    node = date
-    way = date
-    relation = date
-
-
-if __name__ == '__main__':
-    if len(sys.argv) != 2:
-        print("Usage: python osm_file_date.py <osmfile>")
-        sys.exit(-1)
-
-    h = Datecounter()
-
-    h.apply_file(sys.argv[1])
-
-    if h.filedate is None:
-        exit(5)
-
-    print(h.filedate)