fix #16066

tools/edgesInDistricts.py

@@ -197,12 +197,10 @@ def parse_args(args=None):
               "taz only.")
     dec = DistrictEdgeComputer(sumolib.net.readNet(nets[0]))
     tazFiles = nets + options.taz_files.split(",")
-    polyReader = sumolib.shapes.polygon.PolygonReader(True)
-    for tf in tazFiles:
-        parse(tf, polyReader)
+    polygons = sumolib.shapes.polygon.read(tazFiles, includeTaz=True)
     if options.verbose:
         print("Calculating")
-    dec.computeWithin(polyReader.getPolygons(), options)
+    dec.computeWithin(polygons, options)
     if options.verbose:
         print("Writing results")
     dec.writeResults(options)

tools/sumolib/shapes/polygon.py

@@ -127,7 +127,10 @@ def getPolygons(self):
         return self._polys
 
 
-def read(filename, includeTaz=False):
-    polys = PolygonReader(includeTaz)
-    parse(filename, polys)
-    return polys.getPolygons()
+def read(filenames, includeTaz=False):
+    pr = PolygonReader(includeTaz)
+    if isinstance(filenames, str):
+        filenames = [filenames]
+    for fn in filenames:
+        parse(miscutils.openz(fn), pr)
+    return pr.getPolygons()