I just pushed a new version of web2py linking the new pydal. Can you check 
if this error is still present. I have been unable to test it but the error 
is not present in travis-ci

On Saturday, 28 December 2019 09:53:36 UTC+1, YLa wrote:
>
> Hi Massimo,
>
> I am seeing: 'Mongo' object has no attribute 'server_version_major'"
>
> S'Traceback (most recent call last):\n  File 
> "/opt/python/current/app/gluon/restricted.py", line 219, in restricted\n  
>   exec(ccode, environment)\n  File 
> "/opt/python/bundle/2/app/applications/beengo/models/db.py", line 42, in 
> <module>\n    session.connect(request, response, db, masterapp=None)\n  File 
> "/opt/python/current/app/gluon/globals.py", line 965, in connect\n    row 
> = table(record_id, unique_key=unique_key)\n  File 
> "/opt/python/run/venv/local/lib/python2.7/site-packages/pydal/objects.py", 
> line 703, in __call__\n    orderby_on_limitby=False,\n  File 
> "/opt/python/run/venv/local/lib/python2.7/site-packages/pydal/objects.py", 
> line 2634, in select\n    return adapter.select(self.query, fields, 
> attributes)\n  File 
> "/opt/python/run/venv/local/lib/python2.7/site-packages/pydal/adapters/mongo.py",
>  
> line 242, in select\n    return self.__select(query, fields, 
> **attributes)\n  File 
> "/opt/python/run/venv/local/lib/python2.7/site-packages/pydal/adapters/mongo.py",
>  
> line 383, in __select\n    if self.server_version_major < 
> 2.6:\nAttributeError: \'Mongo\' object has no attribute 
> \'server_version_major\'\n'
>
>
> any help would be greatly appreciated.
>
>
> Thanks
>
> On Fri, Dec 27, 2019 at 12:40 PM Massimo Di Pierro <
> massimo.dipie...@gmail.com> wrote:
>
>> I made some major changes to pydal:
>>
>> - internal refactoring in the db connection logic
>> - dropped pg8000 support (never worked well)
>> - reformatting
>>
>> The refactoring is a simplification of some pre-existing convoluted logic 
>> but it also makes it easy to use pydal with multi-threaded (non web2py) 
>> applications and other frameworks. Basically it automatically re-establish 
>> a connection when it detects a DB objects is been used in a different 
>> thread.
>>
>> Before you had to call db._adapter.reconnect() This is no no longer 
>> necessary.
>>
>> One side effect is that db = DAL(...) no longer establishes a connection, 
>> until the connection is actually used to run a query.
>>
>> Please report any problem.
>>
>> Massimo
>>
>> -- 
>> Resources:
>> - http://web2py.com
>> - http://web2py.com/book (Documentation)
>> - http://github.com/web2py/web2py (Source code)
>> - https://code.google.com/p/web2py/issues/list (Report Issues)
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>>
>

-- 
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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