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by: Michael Hohn |
last post by:
Hi,
under python 2.2, the pickle/unpickle sequence incorrectly restores
a larger data structure I have.
Under Python 2.3, these structures now give an explicit exception from
Pickle.memoize():
assert id(obj) not in self.memo
I'm shrinking the offending data structure down to find the problem
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by: Jim Lewis |
last post by:
Pickling an instance of a class, gives "can't pickle instancemethod
objects". What does this mean? How do I find the class method creating
the problem?
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by: Steven Bethard |
last post by:
I'd like to be able to pickle instancemethod objects mainly because I
want to be able to delay a call like ``foo(spam, badger)`` by dumping
``foo``, ``spam`` and ``badger`` to disk and loading them again later.
Sometimes the callable ``foo`` is actually a bound method, e.g.
``bar.baz``, but in such cases, pickle doesn't work by default because
it doesn't know how to pickle/unpickle instancemethod objects.
I was thinking of doing...
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by: Chris |
last post by:
Why can pickle serialize references to functions, but not methods?
Pickling a function serializes the function name, but pickling a
staticmethod, classmethod, or instancemethod generates an error. In
these cases, pickle knows the instance or class, and the method, so
what's the problem? Pickle doesn't serialize code objects, so why can't
it serialize the name as it does for functions? Is this one of those
features that's feasible, but...
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by: fizilla |
last post by:
Hello all!
I have the following weird problem and since I am new to Python I somehow cannot figure out an elegant solution. The problem reduces to the following question:
How to pickle a collections.defaultdict object that has set the default_factory property?
For Example (from the IDLE console):
>>> words = collections.defaultdict(lambda: 1)
>>> f = file("temp","w")
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by: Michele Simionato |
last post by:
Can somebody explain what's happening with the following script?
$ echo example.py
import pickle
class Example(object):
def __init__(self, obj, registry):
self._obj = obj
self._registry = registry
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by: srinivasan srinivas |
last post by:
Hi,
I would like to know how to pickle a bound method??
Thanks,
Srini
Meet people who discuss and share your passions. Go to http://in.promos.yahoo.com/groups/bestofyahoo/
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by: srinivasan srinivas |
last post by:
No. It does not work.
def make_staticmethod(inst, methodname):
return getattr(inst, methodname)
def pickle_function(method):
return make_staticmethod, (method.im_self, method.im_func.__name__)
copy_reg.pickle(new.function, pickle_function, make_staticmethod)
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by: est |
last post by:
>>import md5
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Python25\lib\pickle.py", line 1366, in dumps
Pickler(file, protocol).dump(obj)
File "C:\Python25\lib\pickle.py", line 224, in dump
self.save(obj)
File "C:\Python25\lib\pickle.py", line 306, in save
rv = reduce(self.proto)
File "C:\Python25\lib\copy_reg.py", line 69, in _reduce_ex
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
by: jinu1996 |
last post by:
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| |
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
|
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by: bsmnconsultancy |
last post by:
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