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Here is the code I have:
import pickle
alist = ['here', 'there']
c = open('config.pck', 'w')
pickle.dump(alist, c)
and this is the error I receive:
Traceback (most recent call last):
File "C:\pickle.py", line 1, in ?
import pickle
File "C:\pickle.py", line 6, in ?
pickle.dump(alist, c)
AttributeError: 'module' object has no attribute 'dump'
whats going on? I am using python 2.4 on windows xp
533
To pickle an object into a file, call pickle. dump(object, file) . To get just the pickled bytes, call pickle. dumps(object) .
What can you Pickle? Generally you can pickle any object if you can pickle every attribute of that object. Classes, functions, and methods cannot be pickled -- if you pickle an object, the object's class is not pickled, just a string that identifies what class it belongs to.
Once the file is opened for writing, you can use pickle. dump() , which takes two arguments: the object you want to pickle and the file to which the object has to be saved. In this case, the former will be dogs_dict , while the latter will be outfile . Don't forget to close the file with close() !
Pickle allows different objects to declare how they should be pickled using the __reduce__ method. Whenever an object is pickled, the __reduce__ method defined by it gets called.
Don't call your file pickle.py. It conflicts with the python standard libary module of the same name. So your import pickle is not picking up the python module.
109
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