I'm trying to use the dill module to save my ipython session using dump_session() but I'm getting an error message. I'm using Ipython 1.0.0 and dill 0.2-a-dev 20120503. Does anyone out there have any insight? Thanks in advance.
Niall
Here's the enormous traceback:
--------------------------------------------------------------------------- AssertionError Traceback (most recent call last) <ipython-input-15-9934c16a537e> in <module>()
----> 1 dill.dump_session("/data/local/nrobin/tset.sess")
/home/h02/nrobin/.local/lib/python2.7/site-packages/dill-0.2a.dev_20120503-py2.7.egg/dill/dill.pyc in dump_session(filename, main_module)
104 pickler._main_module = main_module
105 pickler._session = True # is best indicator of when pickling a session
--> 106 pickler.dump(main_module)
107 pickler._session = False
108 finally:
/usr/local/sci/lib/python2.7/pickle.pyc in dump(self, obj)
222 if self.proto >= 2:
223 self.write(PROTO + chr(self.proto))
--> 224 self.save(obj)
225 self.write(STOP)
226
/usr/local/sci/lib/python2.7/pickle.pyc in save(self, obj)
284 f = self.dispatch.get(t)
285 if f:
--> 286 f(self, obj) # Call unbound method with explicit self
287 return
288
/home/h02/nrobin/.local/lib/python2.7/site-packages/dill-0.2a.dev_20120503-py2.7.egg/dill/dill.pyc in save_module(pickler, obj)
415 if _DEBUG[0]: print "M1: %s" % obj
416 pickler.save_reduce(__import__, (obj.__name__,), obj=obj,
--> 417 state=obj.__dict__.copy())
418 else:
419 if _DEBUG[0]: print "M2: %s" % obj
/usr/local/sci/lib/python2.7/pickle.pyc in save_reduce(self, func, args, state, listitems, dictitems, obj)
417
418 if state is not None:
--> 419 save(state)
420 write(BUILD)
421
/usr/local/sci/lib/python2.7/pickle.pyc in save(self, obj)
284 f = self.dispatch.get(t)
285 if f:
--> 286 f(self, obj) # Call unbound method with explicit self
287 return
288
/home/h02/nrobin/.local/lib/python2.7/site-packages/dill-0.2a.dev_20120503-py2.7.egg/dill/dill.pyc in save_module_dict(pickler, obj)
284 else:
285 if _DEBUG[0]: print "D2: %s" % "<dict ...>" #obj
--> 286 StockPickler.save_dict(pickler, obj)
287 return
288
/usr/local/sci/lib/python2.7/pickle.pyc in save_dict(self, obj)
647
648 self.memoize(obj)
--> 649 self._batch_setitems(obj.iteritems())
650
651 dispatch[DictionaryType] = save_dict
/usr/local/sci/lib/python2.7/pickle.pyc in _batch_setitems(self, items)
679 for k, v in tmp:
680 save(k)
--> 681 save(v)
682 write(SETITEMS)
683 elif n:
/usr/local/sci/lib/python2.7/pickle.pyc in save(self, obj)
329
330 # Save the reduce() output and finally memoize the object
--> 331 self.save_reduce(obj=obj, *rv)
332
333 def persistent_id(self, obj):
/usr/local/sci/lib/python2.7/pickle.pyc in save_reduce(self, func, args, state, listitems, dictitems, obj)
417
418 if state is not None:
--> 419 save(state)
420 write(BUILD)
421
/usr/local/sci/lib/python2.7/pickle.pyc in save(self, obj)
284 f = self.dispatch.get(t)
285 if f:
--> 286 f(self, obj) # Call unbound method with explicit self
287 return
288
/home/h02/nrobin/.local/lib/python2.7/site-packages/dill-0.2a.dev_20120503-py2.7.egg/dill/dill.pyc in save_module_dict(pickler, obj)
284 else:
285 if _DEBUG[0]: print "D2: %s" % "<dict ...>" #obj
--> 286 StockPickler.save_dict(pickler, obj)
287 return
288
/usr/local/sci/lib/python2.7/pickle.pyc in save_dict(self, obj)
647
648 self.memoize(obj)
--> 649 self._batch_setitems(obj.iteritems())
650
651 dispatch[DictionaryType] = save_dict
/usr/local/sci/lib/python2.7/pickle.pyc in _batch_setitems(self, items)
684 k, v = tmp[0]
685 save(k)
--> 686 save(v)
687 write(SETITEM)
688 # else tmp is empty, and we're done
/usr/local/sci/lib/python2.7/pickle.pyc in save(self, obj)
329
330 # Save the reduce() output and finally memoize the object
--> 331 self.save_reduce(obj=obj, *rv)
332
333 def persistent_id(self, obj):
/usr/local/sci/lib/python2.7/pickle.pyc in save_reduce(self, func, args, state, listitems, dictitems, obj)
417
418 if state is not None:
--> 419 save(state)
420 write(BUILD)
421
/usr/local/sci/lib/python2.7/pickle.pyc in save(self, obj)
284 f = self.dispatch.get(t)
285 if f:
--> 286 f(self, obj) # Call unbound method with explicit self
287 return
288
/home/h02/nrobin/.local/lib/python2.7/site-packages/dill-0.2a.dev_20120503-py2.7.egg/dill/dill.pyc in save_module_dict(pickler, obj)
284 else:
285 if _DEBUG[0]: print "D2: %s" % "<dict ...>" #obj
--> 286 StockPickler.save_dict(pickler, obj)
287 return
288
/usr/local/sci/lib/python2.7/pickle.pyc in save_dict(self, obj)
647
648 self.memoize(obj)
--> 649 self._batch_setitems(obj.iteritems())
650
651 dispatch[DictionaryType] = save_dict
/usr/local/sci/lib/python2.7/pickle.pyc in _batch_setitems(self, items)
679 for k, v in tmp:
680 save(k)
--> 681 save(v)
682 write(SETITEMS)
683 elif n:
/usr/local/sci/lib/python2.7/pickle.pyc in save(self, obj)
284 f = self.dispatch.get(t)
285 if f:
--> 286 f(self, obj) # Call unbound method with explicit self
287 return
288
/home/h02/nrobin/.local/lib/python2.7/site-packages/dill-0.2a.dev_20120503-py2.7.egg/dill/dill.pyc in save_instancemethod(pickler, obj)
303 if _DEBUG[0]: print "Me: %s" % obj
304 pickler.save_reduce(MethodType, (obj.im_func, obj.im_self,
--> 305 obj.im_class), obj=obj)
306 return
307
/usr/local/sci/lib/python2.7/pickle.pyc in save_reduce(self, func, args, state, listitems, dictitems, obj)
399 else:
400 save(func)
--> 401 save(args)
402 write(REDUCE)
403
/usr/local/sci/lib/python2.7/pickle.pyc in save(self, obj)
284 f = self.dispatch.get(t)
285 if f:
--> 286 f(self, obj) # Call unbound method with explicit self
287 return
288
/usr/local/sci/lib/python2.7/pickle.pyc in save_tuple(self, obj)
546 if n <= 3 and proto >= 2:
547 for element in obj:
--> 548 save(element)
549 # Subtle. Same as in the big comment below.
550 if id(obj) in memo:
/usr/local/sci/lib/python2.7/pickle.pyc in save(self, obj)
284 f = self.dispatch.get(t)
285 if f:
--> 286 f(self, obj) # Call unbound method with explicit self
287 return
288
/home/h02/nrobin/.local/lib/python2.7/site-packages/dill-0.2a.dev_20120503-py2.7.egg/dill/dill.pyc in save_function(pickler, obj)
268 pickler.save_reduce(FunctionType, (obj.func_code, obj.func_globals,
269 obj.func_name, obj.func_defaults,
--> 270 obj.func_closure), obj=obj)
271 else:
272 if _DEBUG[0]: print "F2: %s" % obj
/usr/local/sci/lib/python2.7/pickle.pyc in save_reduce(self, func, args, state, listitems, dictitems, obj)
399 else:
400 save(func)
--> 401 save(args)
402 write(REDUCE)
403
/usr/local/sci/lib/python2.7/pickle.pyc in save(self, obj)
284 f = self.dispatch.get(t)
285 if f:
--> 286 f(self, obj) # Call unbound method with explicit self
287 return
288
/usr/local/sci/lib/python2.7/pickle.pyc in save_tuple(self, obj)
560 write(MARK)
561 for element in obj:
--> 562 save(element)
563
564 if id(obj) in memo:
/usr/local/sci/lib/python2.7/pickle.pyc in save(self, obj)
284 f = self.dispatch.get(t)
285 if f:
--> 286 f(self, obj) # Call unbound method with explicit self
287 return
288
/home/h02/nrobin/.local/lib/python2.7/site-packages/dill-0.2a.dev_20120503-py2.7.egg/dill/dill.pyc in save_module_dict(pickler, obj)
284 else:
285 if _DEBUG[0]: print "D2: %s" % "<dict ...>" #obj
--> 286 StockPickler.save_dict(pickler, obj)
287 return
288
/usr/local/sci/lib/python2.7/pickle.pyc in save_dict(self, obj)
647
648 self.memoize(obj)
--> 649 self._batch_setitems(obj.iteritems())
650
651 dispatch[DictionaryType] = save_dict
/usr/local/sci/lib/python2.7/pickle.pyc in _batch_setitems(self, items)
679 for k, v in tmp:
680 save(k)
--> 681 save(v)
682 write(SETITEMS)
683 elif n:
/usr/local/sci/lib/python2.7/pickle.pyc in save(self, obj)
284 f = self.dispatch.get(t)
285 if f:
--> 286 f(self, obj) # Call unbound method with explicit self
287 return
288
/home/h02/nrobin/.local/lib/python2.7/site-packages/dill-0.2a.dev_20120503-py2.7.egg/dill/dill.pyc in save_instancemethod(pickler, obj)
303 if _DEBUG[0]: print "Me: %s" % obj
304 pickler.save_reduce(MethodType, (obj.im_func, obj.im_self,
--> 305 obj.im_class), obj=obj)
306 return
307
/usr/local/sci/lib/python2.7/pickle.pyc in save_reduce(self, func, args, state, listitems, dictitems, obj)
399 else:
400 save(func)
--> 401 save(args)
402 write(REDUCE)
403
/usr/local/sci/lib/python2.7/pickle.pyc in save(self, obj)
284 f = self.dispatch.get(t)
285 if f:
--> 286 f(self, obj) # Call unbound method with explicit self
287 return
288
/usr/local/sci/lib/python2.7/pickle.pyc in save_tuple(self, obj)
546 if n <= 3 and proto >= 2:
547 for element in obj:
--> 548 save(element)
549 # Subtle. Same as in the big comment below.
550 if id(obj) in memo:
/usr/local/sci/lib/python2.7/pickle.pyc in save(self, obj)
284 f = self.dispatch.get(t)
285 if f:
--> 286 f(self, obj) # Call unbound method with explicit self
287 return
288
/home/h02/nrobin/.local/lib/python2.7/site-packages/dill-0.2a.dev_20120503-py2.7.egg/dill/dill.pyc in save_function(pickler, obj)
268 pickler.save_reduce(FunctionType, (obj.func_code, obj.func_globals,
269 obj.func_name, obj.func_defaults,
--> 270 obj.func_closure), obj=obj)
271 else:
272 if _DEBUG[0]: print "F2: %s" % obj
/usr/local/sci/lib/python2.7/pickle.pyc in save_reduce(self, func, args, state, listitems, dictitems, obj)
403
404 if obj is not None:
--> 405 self.memoize(obj)
406
407 # More new special cases (that work with older protocols as
/usr/local/sci/lib/python2.7/pickle.pyc in memoize(self, obj)
242 if self.fast:
243 return
--> 244 assert id(obj) not in self.memo
245 memo_len = len(self.memo)
246 self.write(self.put(memo_len))
AssertionError:
