remove readlines()

stdin.readlines() is causing the entire output of tippecanoe-decode to be buffered instead of streamed. For very large mbtiles (like the United States), this generates unreasonably high memory usage.

Author: McCulloughRT

label_maker/stream_filter.py

@@ -5,7 +5,7 @@
 
 bbox = box(*json.loads(sys.argv[1]))
 
-for line in sys.stdin.readlines():
+for line in sys.stdin:
     geo = json.loads(line)
     geom = shape(geo['geometry'])
     geo.pop('tippecanoe')