class_docstr: IdleConfigParser specialised for user configuration handling.
class_docstr_tok: ["IdleConfigParser","specialised","for","user","configuration","handling","."]
docstr: If section doesn't exist, add it.
docstr_tok: ["If","section","does","n't","exist",",","add","it","."]
code: def AddSection(self, section):
      "If section doesn't exist, add it."
      if not self.has_section(section):
          self.add_section(section)
  
imports: from configparser import ConfigParser
  import os
  import sys
  from tkinter.font import Font
  import idlelib
label_desc: Use image node_id 3 for calling the IdleUserConfParser obj's underlying member method code with example usage: obj.AddSection(section) without return types