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cdef extern from "Python.h": 
 
    ############################################################################ 
    # 7.2.2 Boolean Objects 
    ############################################################################ 
 
    ctypedef class __builtin__.bool [object PyBoolObject]: 
        pass 
 
    # Booleans in Python are implemented as a subclass of 
    # integers. There are only two booleans, Py_False and Py_True. As 
    # such, the normal creation and deletion functions don't apply to 
    # booleans. The following macros are available, however. 
 
    bint PyBool_Check(object o) 
    # Return true if o is of type PyBool_Type. 
 
    #PyObject* Py_False 
    # The Python False object. This object has no methods. It needs to 
    # be treated just like any other object with respect to reference 
    # counts. 
 
    #PyObject* Py_True 
    # The Python True object. This object has no methods. It needs to 
    # be treated just like any other object with respect to reference 
    # counts. 
 
    # Py_RETURN_FALSE 
    # Return Py_False from a function, properly incrementing its reference count. 
 
    # Py_RETURN_TRUE 
    # Return Py_True from a function, properly incrementing its reference count. 
 
    object PyBool_FromLong(long v) 
    # Return value: New reference. 
    # Return a new reference to Py_True or Py_False depending on the truth value of v.