SQLAlchemy mysql dialect error with py2app - sqlalchemy

Question

I'm having trouble getting SQLAlchemy to work with my compiled app after getting through py2app. I've done this successfully in Windows with py2exe. The following is my setup file:
APP = ['Blah.py']
DATA_FILES = []
OPTIONS = {'argv_emulation': True,
'includes': ['sip',
'PyQt4._qt',
'sqlalchemy.dialects.mysql',
'MySQLdb',
"gzip"]
}
setup(
app=APP,
data_files=DATA_FILES,
options={'py2app': OPTIONS},
setup_requires=['py2app'],
)
This appears like it's the right way to do it, as I've seen people use it for sqlite, however I still get this error upon trying to run the app after compile:
sqlalchemy.exc.ArgumentError: Could not determine dialect for 'mysql+mysqldb'
I've recently been trying with PyInstaller and have gotten stuck at pretty much the same spot, albeit with a different error which is the following:
Traceback (most recent call last):
File "<string>", line 96, in <module>
File "/Users/tom/Downloads/pyinstaller-pyinstaller-2145d84/PyInstaller/loader/iu.py", line 386, in importHook
mod = _self_doimport(nm, ctx, fqname)
File "/Users/tom/Downloads/pyinstaller-pyinstaller-2145d84/PyInstaller/loader/iu.py", line 480, in doimport
exec co in mod.__dict__
File "build/bdist.macosx-10.7-intel/egg/MySQLdb/__init__.py", line 19, in <module>
File "/Users/tom/Downloads/pyinstaller-pyinstaller-2145d84/PyInstaller/loader/iu.py", line 386, in importHook
mod = _self_doimport(nm, ctx, fqname)
File "/Users/tom/Downloads/pyinstaller-pyinstaller-2145d84/PyInstaller/loader/iu.py", line 480, in doimport
exec co in mod.__dict__
File "build/bdist.macosx-10.7-intel/egg/_mysql.py", line 7, in <module>
File "build/bdist.macosx-10.7-intel/egg/_mysql.py", line 4, in __bootstrap__
File "OSX_Installer/Jango/build/pyi.darwin/Jango/out00-PYZ.pyz/pkg_resources", line 882, in resource_filename
File "OSX_Installer/Jango/build/pyi.darwin/Jango/out00-PYZ.pyz/pkg_resources", line 1352, in get_resource_filename
File "OSX_Installer/Jango/build/pyi.darwin/Jango/out00-PYZ.pyz/pkg_resources", line 1363, in _extract_resource
KeyError: '_mysql/_mysql.so'

Answer 1

you probably also need _mysql which should include the native mysql bindings. also, this bindings need the binary mysql libraries to be installed on the target system.
your application would probably be a lot more portable if you used a pure python mysql library, such as pymysql or MySQL Connector/Python (both are supported by sqlalchemy)