[Tutor] what's wrong in my command?

Shurui Liu (Aaron Liu) shurui91 at gmail.com
Thu Apr 1 18:31:00 CEST 2010

OK, can you tell me import.py is empty or not? If it's not an empty
document, what's its content?

On Thu, Apr 1, 2010 at 5:45 AM, Dave Angel <davea at ieee.org> wrote:
> Shurui Liu (Aaron Liu) wrote:
>> # geek_translator3.py
>> # Pickle
>> import pickle
> This is where you told it to load import.py.   Normally, that just quietly
> loads the standard module included with your system.
>> <snip, rest of source>
>> When I run it, the system gave me the feedback below:
>> Traceback (most recent call last):
>>  File "geek_translator3.py", line 4, in <module>
>>    import pickle
>>  File "/usr/local/lib/python2.5/pickle.py", line 13, in <module>
>> AttributeError: 'module' object has no attribute 'dump'
>> I don't understand, I don't write anything about pickle.py, why it
>> mentioned?
>> what's wrong with "import pickle"? I read many examples online whose
>> has "import pickle", they all run very well.
>> Thank you!
> I don't have 2.5 any more, so I can't look at the same file you presumably
> have.  And line numbers will most likely be different in 2.6.  In
> particular, there are lots of module comments at the beginning of my version
> of pickle.py.  You should take a look at yours, and see what's in line 13.
> My guess it's a reference to the dump() function which may be defined in the
> same file.  Perhaps in 2.5 it was defined elsewhere.
> Most common cause for something like this would be that pickle imports some
> module, and you have a module by that name in your current directory (or
> elsewhere on the sys.path).  So pickle gets an error after importing it,
> trying to use a global attribute that's not there.
> Wild guess - do you have a file called marshal.py in your own code?
> DaveA

Shurui Liu (Aaron Liu)
Computer Science & Engineering Technology
University of Toledo

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