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 = 

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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