new_contents: import os
  import argparse
  from graphviz import Digraph
  
  def parse_tree_dump_file(tree_dump_file):
      pass
  
  def main():
  	parser = argparse.ArgumentParser(description="A tool for visualizing the TREE structure of GCC")
  	parser.add_argument("--tree_dump", required=True, help="the tree dump file from GCC by 'gcc -fdump-tree-all xxx.c'")
  
  	args = parser.parse_args()
  
  	tree_dump_file = os.path.abspath(args.tree_dump)
  	
  
  if __name__ == '__main__':
      main()
  
subject: Add programming-language/python/gcc_tree_visualize.py