Built-in

__builtin__

This module provides direct access to all ‘built-in’ identifiers of Python; for example, __builtin__.open is the full name for the built-in function open().

• 28.3. __builtin__ — Built-in objects

builtins

This module provides direct access to all ‘built-in’ identifiers of Python; for example, builtins.open is the full name for the built-in function open().

• 29.3. builtins — Built-in objects

__builtins__

compat

if is_py2:
    import __builtin__
    builtins = __builtin__

elif is_py3:
    import builtins
    builtins = builtins

• Usage

  from .compat import builtins
  
  builtins.open