Ensure that karabo-bridge-monitor triggers garbage collection after e…

…ach message

karabo_bridge/cli/monitor.py

@@ -2,6 +2,7 @@
 """Monitor messages coming from Karabo bridge."""
 
 import argparse
+import gc
 
 from .glimpse import print_one_train
 from ..client import Client
@@ -24,8 +25,14 @@ def main(argv=None):
  if args.ntrains is None:
  while True:
  print_one_train(client, verbosity=args.verbose)
+ # Explicitly trigger garbage collection,
+ # seems to be needed to avoid using lots of memory.
+ gc.collect()
  else:
  for _ in range(args.ntrains):
  print_one_train(client, verbosity=args.verbose)
+ # Explicitly trigger garbage collection,
+ # seems to be needed to avoid using lots of memory.
+ gc.collect()
  except KeyboardInterrupt:
  print('\nexit.')