code: def run_python_code(code):
      cmd = ["python"]
      cmd.append("-u")
      cmd.append("-c")
      cmd.append(code)
      return run_cmd(cmd)
  
imports: import csv
  import os
  import shutil
  import subprocess
  import tempfile
  import unittest
  import matplotlib
  from six.moves import xrange
  from pyalgotrade import dataseries
label_desc: Use image node_id 2 for calling a global function with example usage: run_python_code(code) and returns: run_cmd