text: import re
  
  
  def concise_stack_trace(trace):
      def clean(line):
          if line.startswith("Stack for "):
              return
          if '"<Sentinel>"' in line:
              return
          if re.search('File ".*/site-packages/.*"', line):
              line = re.sub('[^"]*/site-packages/', "", line)
          if re.search('File ".*/lib/python[0-9][.][0-9]/.*"', line):
              line = re.sub('[^"]*/lib/python[0-9][.][0-9]/', "", line)
          return line
  
      return '\n'.join(filter(None, (clean(line) for line in trace.split('\n'))))
  