On Wednesday, 7 November 2012 21:57:05 UTC+5:30, Peter Otten wrote:
Devashish Tyagi wrote:
So I want to store the current state of a InteractiveInterpreter Object in
database. In order to achieve this I tried this
obj = InteractiveInterpreter()
local = obj.locals()
pickle.dump(local, open('obj.dump','rw'))
Assuming InteractiveInterpreter is imported from the code module the above
will fail with a TypeError. Please copy-and paste code snippets to avoid
guessing games.
Here is the code
from code import InteractiveInterpreter
import StringIO
import pickle
src = StringIO.StringIO()
inter = InteractiveInterpreter()
inter.runcode('a = 5')
local = inter.locals
pickle.dump(local,open('obj.dump','wb'))
Here is the error
Traceback (most recent call last):
File stdin, line 1, in module
File /usr/lib/python2.7/pickle.py, line 1370, in dump
Pickler(file, protocol).dump(obj)
File /usr/lib/python2.7/pickle.py, line 224, in dump
self.save(obj)
File /usr/lib/python2.7/pickle.py, line 286, in save
f(self, obj) # Call unbound method with explicit self
File /usr/lib/python2.7/pickle.py, line 649, in save_dict
self._batch_setitems(obj.iteritems())
File /usr/lib/python2.7/pickle.py, line 663, in _batch_setitems
save(v)
File /usr/lib/python2.7/pickle.py, line 286, in save
f(self, obj) # Call unbound method with explicit self
File /usr/lib/python2.7/pickle.py, line 649, in save_dict
self._batch_setitems(obj.iteritems())
File /usr/lib/python2.7/pickle.py, line 663, in _batch_setitems
save(v)
File /usr/lib/python2.7/pickle.py, line 306, in save
rv = reduce(self.proto)
File /usr/lib/python2.7/copy_reg.py, line 70, in _reduce_ex
raise TypeError, can't pickle %s objects % base.__name__
TypeError: can't pickle ellipsis objects
But I received an error say
TypeError: can't pickle ellipsis objects
From what I understand this shouldn't occur as local is a dictionary. Any
particular reason for this behaviour?
For a dict to be pickled all its keys and values have to be pickled, too.
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