twisted.python._oldstyle module documentationtwisted.python
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      Utilities to assist in the "flag day" new-style object transition.
| Function | passthru | Return arg. Do nothing. | 
  
| Function | _ensureOldClass | Ensure that cls is an old-style class. | 
  
| Function | _oldStyle | No summary | 
Ensure that cls is an old-style class.
| Parameters | cls | The class to check. | 
| Returns | The class, if it is an old-style class. | |
| Raises | ValueError if it is a new-style class. | |
A decorator which conditionally converts old-style classes to new-style classes. If it is Python 3, or if the TWISTED_NEWSTYLE environment variable has a falsey (no, false, False, or 0) value in the environment, this decorator is a no-op.
| Parameters | cls | An old-style class to convert to new-style. (type: types.ClassType) | 
| Returns | A new-style version of cls. | |