code: def delete_portfolio(p):
      r"""Delete the portfolio.
  
      Parameters
      ----------
      p : alphapy.Portfolio
          Portfolio to delete.
  
      Returns
      -------
      None : None
  
      """
      positions = p.positions
      for key in positions:
          p = close_position(p, positions[key])
      del p
  
imports: from alphapy.frame import Frame
  from alphapy.frame import frame_name
  from alphapy.frame import read_frame
  from alphapy.frame import write_frame
  from alphapy.globals import MULTIPLIERS, SSEP
  from alphapy.globals import Orders
  from alphapy.space import Space
  import logging
  import math
  import numpy
  from pandas import DataFrame
  from pandas import date_range
  from pandas import Series
label_desc: Use image node_id 10 for calling a global function with example usage: delete_portfolio(p) without return types