I would have thought so, but it fails !!! What am I missing?
about as basic as can be -
a plain 2-line vanilla python app (with a running mysql db, created with
the same "db = DAL('mysql://root:password@localhost/mfm_curr_lib',
pool_size = 10) " and accessed happily by the web2py app)
from pydal import DAL, Field
db = DAL('mysql://root:password@localhost/mfm_curr_lib', pool_size = 10)
… produces
RuntimeError: 'Failure to connect, tried 5 times:\nTraceback (most recent
call last):\n File "/Library/Python/2.7/site-packages/pydal/base.py", line
455, in __init__\n self._adapter = adapter(**kwargs)\n File
"/Library/Python/2.7/site-packages/pydal/adapters/__init__.py", line 40, in
__call__\n obj = super(AdapterMeta, cls).__call__(*args, **kwargs)\n File
"/Library/Python/2.7/site-packages/pydal/adapters/base.py", line 373, in
__init__\n super(SQLAdapter, self).__init__(*args, **kwargs)\n File
"/Library/Python/2.7/site-packages/pydal/adapters/base.py", line 50, in
__init__\n self.find_driver()\n File
"/Library/Python/2.7/site-packages/pydal/adapters/base.py", line 101, in
find_driver\n str(self.drivers))\nRuntimeError: No driver of supported ones
(\'MySQLdb\', \'pymysql\', \'mysqlconnector\') is available\n'
module body in mfm_media_model.py at line 63
db = DAL('mysql://root:password@localhost:3306/mfm_curr_lib/', pool_size =
10)
function __call__ in base.py at line 170
obj = super(MetaDAL, cls).__call__(*args, **kwargs)
function __init__ in base.py at line 475
"Failure to connect, tried %d times:\n%s" % (attempts, tb)
On Tuesday, August 8, 2017 at 6:01:16 PM UTC-7, Anthony wrote:
>
> Sure, you can access the same database from multiple applications (web2py
> or not).
>
> On Tuesday, August 8, 2017 at 6:29:30 PM UTC-4, jim kaubisch wrote:
>>
>> Thanks, I think you're right. But its working now, so I'll revisit it
>> once the delivery heat is off.
>>
>> Please, on the related topic of my other post, I'm I missing something by
>> thinking I should be able to access the SAME mysql db both from web2py as
>> well as a standard Python program, assuming the same version of DAL?
>> In fact, the web2py app creates the db and uses it fine, but the
>> standalone app claims it can't connect to it.
>>
>> I haven't tried it, but what about 2 web2py apps? Can they access the
>> same (mysql) db
>>
>> Thanks
>>
>> On Tuesday, August 8, 2017 at 12:56:23 PM UTC-7, Anthony wrote:
>>>
>>> As I was developing the app, I realized that I was writing basically the
>>>> same code over and over and over, just with slight differences, e.g. the
>>>> table name, the criteria, the fields I wanted to return and their display
>>>> order...
>>>> so a couple of dictionaries to define (1) the tableviews criteria and
>>>> (2) ordered list of fields to return and the core becomes a small
>>>> parameterization of basically the same db query - 10s of lines of code.
>>>>
>>>
>>> Sounds like something you could handle by abstracting everything into a
>>> special function and maybe using Python argument unpacking:
>>>
>>> db(db.table).select(*list_of_fields, **dictonary_of_named_arguments)
>>>
>>> Anthony
>>>
>>
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