text: #ifndef Py_CEVAL_H
  #define Py_CEVAL_H
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  
  /* Interface to random parts in ceval.c */
  
  PyAPI_FUNC(PyObject *) PyEval_CallObjectWithKeywords(
      PyObject *, PyObject *, PyObject *);
  
  /* Inline this */
  #define PyEval_CallObject(func,arg) \
      PyEval_CallObjectWithKeywords(func, arg, (PyObject *)NULL)
  
  PyAPI_FUNC(PyObject *) PyEval_CallFunction(PyObject *obj,
                                             const char *format, ...);
  PyAPI_FUNC(PyObject *) PyEval_CallMethod(PyObject *obj,
                                           const char *methodname,
                                           const char *format, ...);
  
  #ifndef Py_LIMITED_API
  PyAPI_FUNC(void) PyEval_SetProfile(Py_tracefunc, PyObject *);
  PyAPI_FUNC(void) PyEval_SetTrace(Py_tracefunc, PyObject *);
  PyAPI_FUNC(void) _PyEval_SetCoroutineWrapper(PyObject *);
  PyAPI_FUNC(PyObject *) _PyEval_GetCoroutineWrapper(void);
  #endif
  
  struct _frame; /* Avoid including frameobject.h */
  
  PyAPI_FUNC(PyObject *) PyEval_GetBuiltins(void);
  PyAPI_FUNC(PyObject *) PyEval_GetGlobals(void);
  PyAPI_FUNC(PyObject *) PyEval_GetLocals(void);
  PyAPI_FUNC(struct _frame *) PyEval_GetFrame(void);
  
  /* Look at the current frame's (if any) code's co_flags, and turn on
     the corresponding compiler flags in cf->cf_flags.  Return 1 if any
     flag was set, else return 0. */
  #ifndef Py_LIMITED_API
  PyAPI_FUNC(int) PyEval_MergeCompilerFlags(PyCompilerFlags *cf);
  #endif
  
  PyAPI_FUNC(int) Py_AddPendingCall(int (*func)(void *), void *arg);
  PyAPI_FUNC(int) Py_MakePendingCalls(void);
  
  /* Protection against deeply nested recursive calls
  
     In Python 3.0, this protection has two levels:
     * normal anti-recursion protection is triggered when the recursion level
       exceeds the current recursion limit. It raises a RecursionError, and sets
       the "overflowed" flag in the thread state structure. This flag
       temporarily *disables* the normal protection; this allows cleanup code
       to potentially outgrow the recursion limit while processing the
       RecursionError.
     * "last chance" anti-recursion protection is triggered when the recursion
       level exceeds "current recursion limit + 50". By construction, this
       protection can only be triggered when the "overflowed" flag is set. It
       means the cleanup code has itself gone into an infinite loop, or the
       RecursionError has been mistakingly ignored. When this protection is
       triggered, the interpreter aborts with a Fatal Error.
  
     In addition, the "overflowed" flag is automatically reset when the
     recursion level drops below "current recursion limit - 50". This heuristic
     is meant to ensure that the normal anti-recursion protection doesn't get
     disabled too long.
  
     Please note: this scheme has its own limitations. See:
     http://mail.python.org/pipermail/python-dev/2008-August/082106.html
     for some observations.
  */
  PyAPI_FUNC(void) Py_SetRecursionLimit(int);
  PyAPI_FUNC(int) Py_GetRecursionLimit(void);
  
  #define Py_EnterRecursiveCall(where)  \
              (_Py_MakeRecCheck(PyThreadState_GET()->recursion_depth) &&  \
               _Py_CheckRecursiveCall(where))
  #define Py_LeaveRecursiveCall()                         \
      do{ if(_Py_MakeEndRecCheck(PyThreadState_GET()->recursion_depth))  \
        PyThreadState_GET()->overflowed = 0;  \
      } while(0)
  PyAPI_FUNC(int) _Py_CheckRecursiveCall(const char *where);
  PyAPI_DATA(int) _Py_CheckRecursionLimit;
  
  #ifdef USE_STACKCHECK
  /* With USE_STACKCHECK, we artificially decrement the recursion limit in order
     to trigger regular stack checks in _Py_CheckRecursiveCall(), except if
     the "overflowed" flag is set, in which case we need the true value
     of _Py_CheckRecursionLimit for _Py_MakeEndRecCheck() to function properly.
  */
  #  define _Py_MakeRecCheck(x)  \
      (++(x) > (_Py_CheckRecursionLimit += PyThreadState_GET()->overflowed - 1))
  #else
  #  define _Py_MakeRecCheck(x)  (++(x) > _Py_CheckRecursionLimit)
  #endif
  
  /* Compute the "lower-water mark" for a recursion limit. When
   * Py_LeaveRecursiveCall() is called with a recursion depth below this mark,
   * the overflowed flag is reset to 0. */
  #define _Py_RecursionLimitLowerWaterMark(limit) \
      (((limit) > 200) \
          ? ((limit) - 50) \
          : (3 * ((limit) >> 2)))
  
  #define _Py_MakeEndRecCheck(x) \
      (--(x) < _Py_RecursionLimitLowerWaterMark(_Py_CheckRecursionLimit))
  
  #define Py_ALLOW_RECURSION \
    do { unsigned char _old = PyThreadState_GET()->recursion_critical;\
      PyThreadState_GET()->recursion_critical = 1;
  
  #define Py_END_ALLOW_RECURSION \
      PyThreadState_GET()->recursion_critical = _old; \
    } while(0);
  
  PyAPI_FUNC(const char *) PyEval_GetFuncName(PyObject *);
  PyAPI_FUNC(const char *) PyEval_GetFuncDesc(PyObject *);
  
  PyAPI_FUNC(PyObject *) PyEval_GetCallStats(PyObject *);
  PyAPI_FUNC(PyObject *) PyEval_EvalFrame(struct _frame *);
  PyAPI_FUNC(PyObject *) PyEval_EvalFrameEx(struct _frame *f, int exc);
  
  /* Interface for threads.
  
     A module that plans to do a blocking system call (or something else
     that lasts a long time and doesn't touch Python data) can allow other
     threads to run as follows:
  
      ...preparations here...
      Py_BEGIN_ALLOW_THREADS
      ...blocking system call here...
      Py_END_ALLOW_THREADS
      ...interpret result here...
  
     The Py_BEGIN_ALLOW_THREADS/Py_END_ALLOW_THREADS pair expands to a
     {}-surrounded block.
     To leave the block in the middle (e.g., with return), you must insert
     a line containing Py_BLOCK_THREADS before the return, e.g.
  
      if (...premature_exit...) {
          Py_BLOCK_THREADS
          PyErr_SetFromErrno(PyExc_IOError);
          return NULL;
      }
  
     An alternative is:
  
      Py_BLOCK_THREADS
      if (...premature_exit...) {
          PyErr_SetFromErrno(PyExc_IOError);
          return NULL;
      }
      Py_UNBLOCK_THREADS
  
     For convenience, that the value of 'errno' is restored across
     Py_END_ALLOW_THREADS and Py_BLOCK_THREADS.
  
     WARNING: NEVER NEST CALLS TO Py_BEGIN_ALLOW_THREADS AND
     Py_END_ALLOW_THREADS!!!
  
     The function PyEval_InitThreads() should be called only from
     init_thread() in "_threadmodule.c".
  
     Note that not yet all candidates have been converted to use this
     mechanism!
  */
  
  PyAPI_FUNC(PyThreadState *) PyEval_SaveThread(void);
  PyAPI_FUNC(void) PyEval_RestoreThread(PyThreadState *);
  
  #ifdef WITH_THREAD
  
  PyAPI_FUNC(int)  PyEval_ThreadsInitialized(void);
  PyAPI_FUNC(void) PyEval_InitThreads(void);
  PyAPI_FUNC(void) _PyEval_FiniThreads(void);
  PyAPI_FUNC(void) PyEval_AcquireLock(void);
  PyAPI_FUNC(void) PyEval_ReleaseLock(void);
  PyAPI_FUNC(void) PyEval_AcquireThread(PyThreadState *tstate);
  PyAPI_FUNC(void) PyEval_ReleaseThread(PyThreadState *tstate);
  PyAPI_FUNC(void) PyEval_ReInitThreads(void);
  
  #ifndef Py_LIMITED_API
  PyAPI_FUNC(void) _PyEval_SetSwitchInterval(unsigned long microseconds);
  PyAPI_FUNC(unsigned long) _PyEval_GetSwitchInterval(void);
  #endif
  
  #define Py_BEGIN_ALLOW_THREADS { \
                          PyThreadState *_save; \
                          _save = PyEval_SaveThread();
  #define Py_BLOCK_THREADS        PyEval_RestoreThread(_save);
  #define Py_UNBLOCK_THREADS      _save = PyEval_SaveThread();
  #define Py_END_ALLOW_THREADS    PyEval_RestoreThread(_save); \
                   }
  
  #else /* !WITH_THREAD */
  
  #define Py_BEGIN_ALLOW_THREADS {
  #define Py_BLOCK_THREADS
  #define Py_UNBLOCK_THREADS
  #define Py_END_ALLOW_THREADS }
  
  #endif /* !WITH_THREAD */
  
  #ifndef Py_LIMITED_API
  PyAPI_FUNC(int) _PyEval_SliceIndex(PyObject *, Py_ssize_t *);
  PyAPI_FUNC(void) _PyEval_SignalAsyncExc(void);
  #endif
  
  /* Masks and values used by FORMAT_VALUE opcode. */
  #define FVC_MASK      0x3
  #define FVC_NONE      0x0
  #define FVC_STR       0x1
  #define FVC_REPR      0x2
  #define FVC_ASCII     0x3
  #define FVS_MASK      0x4
  #define FVS_HAVE_SPEC 0x4
  
  #ifdef __cplusplus
  }
  #endif
  #endif /* !Py_CEVAL_H */
  