Re: Python3.5.9 and UnicodeDecodeError in ZODB/fsIndex.py

FileStorages (and in general, ZODB databases) created with Python 2.7 cannot be used under Python 3, and vice versa. 

There is a tool to migrate a Python 2 database to Python 3 that you could try: http://zodbpy3migrate.readthedocs.io/en/latest/

> On Oct 18, 2017, at 07:02, Etienne Robillard <[email protected]> wrote:
> 
> Hi all,
> 
> I've got an issue after having upgraded to Python3 and ZODB 5.3.0:
> 
> erob@marina:/home/www/isotopesoftware.ca/trunk$ bin/runzeo.sh
> Error in sitecustomize; set PYTHONVERBOSE for traceback:
> AttributeError: module 'sys' has no attribute 'setdefaultencoding'
> ------
> 2017-10-18T07:56:04 INFO ZEO.runzeo (26525) opening storage '1' using FileStorage
> ------
> 2017-10-18T07:56:04 ERROR ZODB.FileStorage loading index
> Traceback (most recent call last):
>  File "/usr/local/lib/python3.5/dist-packages/ZODB-5.3.0-py3.5.egg/ZODB/FileStorage/FileStorage.py", line 465, in _restore_index
>    info = fsIndex.load(index_name)
>  File "/usr/local/lib/python3.5/dist-packages/ZODB-5.3.0-py3.5.egg/ZODB/fsIndex.py", line 134, in load
>    v = unpickler.load()
> UnicodeDecodeError: 'ascii' codec can't decode byte 0x94 in position 99: ordinal not in range(128)
> Traceback (most recent call last):
>  File "/usr/local/bin/runzeo", line 11, in <module>
>    load_entry_point('ZEO', 'console_scripts', 'runzeo')()
>  File "/usr/local/lib/python3.5/dist-packages/ZEO-5.1.0-py3.5.egg/ZEO/runzeo.py", line 392, in main
>    s.main()
>  File "/usr/local/lib/python3.5/dist-packages/ZEO-5.1.0-py3.5.egg/ZEO/runzeo.py", line 153, in main
>    self.open_storages()
>  File "/usr/local/lib/python3.5/dist-packages/ZEO-5.1.0-py3.5.egg/ZEO/runzeo.py", line 207, in open_storages
>    self.storages[opener.name] = opener.open()
>  File "/usr/local/lib/python3.5/dist-packages/ZODB-5.3.0-py3.5.egg/ZODB/config.py", line 207, in open
>    return FileStorage(config.path, **options)
>  File "/usr/local/lib/python3.5/dist-packages/ZODB-5.3.0-py3.5.egg/ZODB/FileStorage/FileStorage.py", line 306, in __init__
>    read_only=read_only,
>  File "/usr/local/lib/python3.5/dist-packages/ZODB-5.3.0-py3.5.egg/ZODB/FileStorage/FileStorage.py", line 1619, in read_index
>    raise FileStorageFormatError(name)
> ZODB.FileStorage.FileStorage.FileStorageFormatError: /var/db/zodb/blogs.fs
> 
> 
> Is my ZODB database depending strictly on python2.7 ?
> 
> TIA,
> 
> Etienne
> 
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