Pickle problem while loading a class instance.

[gerardob]

I tried both things:

1- moved all the code to C:/Python26/lib/site-packages 
2- Modified the PYTHONPATH in the windows registry.

However, i stil have exactly the same error on the screen.

Any other suggestions?

Thanks.


Peter Otten wrote:
> 
> gerardob wrote:
> 
>> Hello, I am new to python and i have a problem using the pickle load
>> function.
>> I have an object m of the class MarkovModel and i want to copy it to a
>> file and load it onto another class:
>> 
>> l=[1,2,3]
>> m = markov_model.MarkovModel()
>> m.load_observations(l)
>> file = open("prueba.txt", 'w')
> 
> Remember to open the file in binary mode.
> 
>> pickle.dump(m,file,2)
>> file.close()
>> 
>> #m2 = markov_model.MarkovModel()
>> 
>> file = open("prueba.txt", 'rb')
>> m2 = pickle.load(file) (THIS IS LINE 36)
>> 
>> The error below appears. In the case i remove the comment to initialize
>> m2, the same thing happens. Any ideas on how to fix this?
> 
> Add the directory containing the markov_model module to your PYTHONPATH 
> environment variable or move the module into a directory where Python is 
> already looking (C:/Python26/lib/site-packages or the per-user
> equivalent).
> 
> See also http://docs.python.org/using/windows.html#finding-modules
> 
>> Traceback (most recent call last):
>> File "C:\Users\gberbeglia\Documents\python\scripting\mycodes\main.py",
>> line 36, in <module>
>> m2 = pickle.load(file)
>> File "C:\Python26\lib\pickle.py", line 1370, in load
>> return Unpickler(file).load()
>> File "C:\Python26\lib\pickle.py", line 858, in load
>> dispatch[key](self)
>> File "C:\Python26\lib\pickle.py", line 1090, in load_global
>> klass = self.find_class(module, name)
>> File "C:\Python26\lib\pickle.py", line 1124, in find_class
>> __import__(module)
>> ImportError: No module named markov_model
> 
> Peter
> -- 
> http://mail.python.org/mailman/listinfo/python-list
> 
> 

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