On 7/17/15 1:21 PM, Jeffrey McLarty wrote:
Hello,
I've got a very peculiar situation, where SQLA fails to create an
engine, because it can't find the installed module, only when I do
some relatively straightforward package discovery & import logic using
imp.find_module and imp.load_module.
feel free to share that logic. Otherwise, no clue.
I'm wondering if SQLAlchemy does some magic
only if you consider this to be magic:
module = __import__('sqlalchemy.dialects.%s' % (dialect, )).dialects
which might be impacted if I've used find_module and load_module
upstream, despite being in different name spaces(?)
I'm working with Python 2.7.6, SQLAlchemy 0.9.2, and Postgres 9.4, and
psycopg2
Here's the traceback...
|
Traceback(most recent call last):
File"C:\WinPython-32bit-2.7.6.3-20140407\python-2.7.6\lib\pdb.py",line
1314,
inmain
pdb._runscript(mainpyfile)
File"C:\WinPython-32bit-2.7.6.3-20140407\python-2.7.6\lib\pdb.py",line
1233,
in_runscript
self.run(statement)
File"C:\WinPython-32bit-2.7.6.3-20140407\python-2.7.6\lib\bdb.py",line
400,
inrun
execcmd inglobals,locals
File"<string>",line 1,in<module>
File"install.py",line 2,in<module>
fromequitable.db.psyw importDBpicker,SQLAeng,SmartDB
File"C:\WinPython-32bit-2.7.6.3-20140407\python-2.7.6\lib\site-packages\trump
\orm.py",line 2287,inSetupTrump
engine =create_engine(engine_str)
File"C:\WinPython-32bit-2.7.6.3-20140407\python-2.7.6\lib\site-packages\sqlal
chemy\engine\__init__.py",line 344,increate_engine
returnstrategy.create(*args,**kwargs)
File"C:\WinPython-32bit-2.7.6.3-20140407\python-2.7.6\lib\site-packages\sqlal
chemy\engine\strategies.py",line 50,increate
dialect_cls =u.get_dialect()
File"C:\WinPython-32bit-2.7.6.3-20140407\python-2.7.6\lib\site-packages\sqlal
chemy\engine\url.py",line 116,inget_dialect
cls =registry.load(name)
File"C:\WinPython-32bit-2.7.6.3-20140407\python-2.7.6\lib\site-packages\sqlal
chemy\util\langhelpers.py",line 186,inload
(self.group,name))
NoSuchModuleError:Can't load plugin:
sqlalchemy.dialects:postgresql.psycopg2
|
SQLAlchemy works as expected, (ie, it finds psycopg2) if I comment out
line 60 of https://github.com/Equitable/trump/blob/master/trump/orm.py
(and replace the variable "sources" with an empty dictionary). Line
60, is an import to sub-module which dynamically loads modules.
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