add example for find sources

example/find.py

@@ -0,0 +1,32 @@
+import sys
+import time
+import NDIlib as ndi
+
+def main():
+
+    if not ndi.initialize():
+        return 0
+
+    ndi_find = ndi.find_create_v2()
+
+    if ndi_find is None:
+        return 0
+
+    t = time.time()
+    while time.time() - t < 1.0:
+        if not ndi.find_wait_for_sources(ndi_find, 5000):
+            print('No change to the sources found.')
+            continue
+        sources = ndi.find_get_current_sources(ndi_find)
+        print('Network sources (%s found).' % len(sources))
+        for i, s in enumerate(sources):
+            print('%s. %s' % (i + 1, s.ndi_name))
+
+    ndi.find_destroy(ndi_find)
+
+    ndi.destroy()
+
+    return 0
+
+if __name__ == "__main__":
+    sys.exit(main())