Find all the external functions called by my code

find_external_libs.py

def find_external_functions(key, stats):
  output = {}
  for k,v in stats.items():
    _, _, _, _, d = v
    if key in d:
      output[k] = v

  return output


# Let's assume that we want to find all the code called from mykeys[1]
external_stats = find_external_functions(mykeys[1], stats_dict)
percall = {}

for k,v in external_stats.items():
  _, ncalls, _, cumtime, _ = v
  avg_time = cumtime/ncalls
  percall[k] = avg_time

sorted(percall.items(), key=lambda x: x[1], reverse=True)