added python example

*examples/load_dwg.py: load a DWG file and print some data

Author: rodrigopitanga

examples/Makefile.am

@@ -44,4 +44,4 @@ TESTS_ENVIRONMENT = \
 
 TESTS = alive.test
 
-EXTRA_DIST = example.dwg sample.dwg suffix.c $(TESTS)
+EXTRA_DIST = example.dwg sample.dwg suffix.c load_dwg.py $(TESTS)

examples/load_dwg.py

@@ -0,0 +1,21 @@
+#! /usr/bin/python
+
+import libredwg
+from libredwg import *
+
+import sys
+
+if (len(sys.argv) != 2):
+        print "Usage: read_num_layers.py <filename>"
+        exit()
+
+filename = sys.argv[1]
+a = Dwg_Data()
+error = dwg_read_file(filename, a)
+
+if (error != 0):
+    print "Error!"
+    exit()
+
+print "Num objects: %d " % a.num_objects
+print "Num layers: %d" % a.layer_control.tio.object.tio.LAYER_CONTROL.num_entries