[Zope] Error Migration Data.fs from Zope 2.10.4 to 2.13.8

[Frank Kauff]

Unfortunately, it's not working:

When starting within the 2.10.4 environment, I get the error

Traceback (most recent call last):
   File "../strip_versions.py", line 116, in ?
     main()
   File "../strip_versions.py", line 108, in main
     ZODB.BaseStorage.copy(it, output_storage)
AttributeError: 'module' object has no attribute 'copy'


Starting it from within 2.13.8, I get the old error again:

Traceback (most recent call last):
   File "../strip_versions.py", line 116, in <module>
     main()
   File "../strip_versions.py", line 108, in main
     ZODB.BaseStorage.copy(it, output_storage)
   File 
"/opt/zope/lib/python2.6/site-packages/ZODB3-3.10.3-py2.6-linux-x86_64.egg/ZODB/BaseStorage.py", 
line 394, in copy
     for r in transaction:
   File "../strip_versions.py", line 57, in __iter__
     for record in self.__transaction:
   File 
"/opt/zope/lib/python2.6/site-packages/ZODB3-3.10.3-py2.6-linux-x86_64.egg/ZODB/FileStorage/FileStorage.py", 
line 1890, in next
     h = self._read_data_header(pos)
   File 
"/opt/zope/lib/python2.6/site-packages/ZODB3-3.10.3-py2.6-linux-x86_64.egg/ZODB/FileStorage/format.py", 
line 150, in _read_data_header
     h = DataHeaderFromString(s)
   File 
"/opt/zope/lib/python2.6/site-packages/ZODB3-3.10.3-py2.6-linux-x86_64.egg/ZODB/FileStorage/format.py", 
line 236, in DataHeaderFromString
     return DataHeader(*struct.unpack(DATA_HDR, s))
   File 
"/opt/zope/lib/python2.6/site-packages/ZODB3-3.10.3-py2.6-linux-x86_64.egg/ZODB/FileStorage/format.py", 
line 246, in __init__
     "Non-zero version length. Versions aren't supported.")
ValueError: Non-zero version length. Versions aren't supported.

Any help appreciated,

Frank


On 10/06/2011 02:02 PM, Andreas Jung wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Try  the following script to stip off versions:
>
> http://svn.zope.org/ZODB/branches/3.8/src/ZODB/scripts/strip_versions.py?rev=102805&view=markup
>
> - -aj
>
> Frank Kauff wrote:
>> Hi all,
>>
>> I'm trying to update from Zope 2.10.4 to 2.13.8 and have problems to
>>   copy Data.fs. No matter whether I try to directly copy Data.fs or
>> use repozo, both times zope gives me the error
>>
>> ValueError: Non-zero version length. Versions aren't supported.
>>
>> Searching the net, this seems to be a common problem. However, I
>> couldn't find a solution for it. Is there a tool anywhere that can
>> convert Data.fs from older to newer formats?
>>
>> Thanks, Frank
>>
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