moved channel names into constant

dap/accumulator.py

@@ -8,6 +8,13 @@ from zmqsocks import ZMQSocketsAccumulator, make_address
 
 OUTPUT_DIR = "/gpfs/photonics/swissfel/buffer/dap/data"
 
+ENTRIES_TO_SEND = (
+    "frame",
+    "is_good_frame",
+    "number_of_spots",
+    "saturated_pixels"
+)
+
 
 def main():
     parser = argparse.ArgumentParser()
@@ -61,17 +68,10 @@ def accumulate(accumulator_addr, bsread_port):
             continue
 
         timestamp = tuple(results["timestamp"])
-
-        to_copy = (
-            "frame",
-            "is_good_frame",
-            "number_of_spots",
-            "saturated_pixels"
-        )
-
-        data = {f"{detector}:{k}": results[k] for k in to_copy}
+        data = {f"{detector}:{k}": results[k] for k in ENTRIES_TO_SEND}
 
         sorter.add(pulse_id, (timestamp, data))
+
         ready = sorter.flush_ready()
         for pulse_id, (timestamp, data) in ready:
             sender.send(pulse_id=pulse_id, timestamp=timestamp, data=data)