class_docstr: Format a number to engineer scale
class_docstr_tok: ["Format","a","number","to","engineer","scale"]
code: def __init__(self, none_char="∅"):
      self.none_char = none_char
  
imports: from __future__ import division
  from datetime import date, datetime, time
  from math import floor, log
  from pygal.util import float_format
label_desc: Use image node_id 1 to create a new HumanReadable object from inherited base classes: Formatter with example: obj = HumanReadable(none_char)