class_docstr: NumExpr engine class
class_docstr_tok: ["NumExpr","engine","class"]
code: def __init__(self, expr):
      super(NumExprEngine, self).__init__(expr)
  
imports: import abc
  from pandas.compat import map
  from pandas import compat
  from pandas.core.computation.align import _align, _reconstruct_object
  from pandas.core.computation.ops import UndefinedVariableError, _mathops, _reductions
  import pandas.io.formats.printing
label_desc: Use image node_id 1 to create a new NumExprEngine object from inherited base classes: AbstractEngine with example: obj = NumExprEngine(expr)