Good to hear and you're welcome:)

On Monday, 26 August 2019 13:00:02 UTC+10, Ira Fuchs wrote:
>
> That's it. (postal_code). The ORM query now works from the iPad! Now I 
> need to sort things out with Python on the Mac and with MySQL server. 
> Having a working example like this helps as I go through the documentation. 
> Thanks very much much for your patient assistance. 
>
> On Sunday, August 25, 2019 at 9:35:28 PM UTC-4, Peter Schutt wrote:
>>
>> HI Ira,
>>
>> Again, that is an error that originates from inside the database layer 
>> and its telling you that one of the columns that you've queried on doesn't 
>> exist, which could mean a few things that will be hard for anyone to debug 
>> without access to the schema that you are trying to abstract upon. E.g., it 
>> could be that there is a column in civicrm_address that is called 
>> "postcode" or "postal_code" and so the name that we have defined on the 
>> Address class is simply wrong, e.g. Address.postalcode might need to be 
>> Address.postal_code, or something else. It is also possible that no such 
>> column actually exists in the civicrm_address table in the database, it 
>> might be defined on another table, or just not be there at all. Inspecting 
>> the result of 'SHOW CREATE TABLE civicrm_address' should provide you with 
>> enough detail to work out what is going on.
>>
>> On Monday, 26 August 2019 10:57:14 UTC+10, Ira Fuchs wrote:
>>>
>>> Until I can get a new version of the server installed, I decided to try 
>>> running this scipt on my iPad using Pythonista. The script now looks like 
>>> this:
>>>
>>> from sqlalchemy import *
>>> from sqlalchemy.ext.declarative import declarative_base
>>> from sqlalchemy.orm import relationship
>>> from sqlalchemy.orm import sessionmaker
>>> from sqlalchemy import Column, Integer, String
>>> import datetime
>>> engine = create_engine('mysql+pymysql://root:pw!@ipaddr:3306/civicrm2')
>>> Base = declarative_base()
>>> Session = sessionmaker(bind=engine)
>>> session = Session()
>>>
>>> class Contact(Base):
>>>     __tablename__ = "civicrm_contact"
>>>     id = Column(Integer, primary_key=True)
>>>     first_name = Column(String(64, u'utf8_unicode_ci'), index=True)
>>>     middle_name = Column(String(64, u'utf8_unicode_ci'))
>>>     last_name = Column(String(64, u'utf8_unicode_ci'), index=True)
>>>     display_name = Column(String(128, u'utf8_unicode_ci'))
>>>                           
>>> class Contribution(Base):
>>>     __tablename__ = 'civicrm_contribution'
>>>
>>>     id = Column(INTEGER, primary_key=True)
>>>     contact_id = Column(ForeignKey(u'civicrm_contact.id', 
>>> ondelete=u'CASCADE'), nullable=False, index=True)
>>>     financial_type_id = Column(ForeignKey(u'civicrm_financial_type.id'), 
>>> index=True)
>>>     contribution_page_id = Column(ForeignKey(u'
>>> civicrm_contribution_page.id', ondelete=u'SET NULL'), index=True)
>>>     payment_instrument_id = Column(INTEGER, index=True)
>>>     receive_date = Column(DateTime, index=True)
>>>     non_deductible_amount = Column(DECIMAL(20, 2), 
>>> server_default=text("'0.00'"))
>>>     total_amount = Column(DECIMAL(20, 2), nullable=False)
>>>     fee_amount = Column(DECIMAL(20, 2))
>>>     net_amount = Column(DECIMAL(20, 2))
>>>     trxn_id = Column(String(255, u'utf8_unicode_ci'), unique=True)
>>>     invoice_id = Column(String(255, u'utf8_unicode_ci'))
>>>     currency = Column(String(3, u'utf8_unicode_ci'))
>>>     cancel_date = Column(DateTime)
>>>     cancel_reason = Column(Text(collation=u'utf8_unicode_ci'))
>>>     receipt_date = Column(DateTime)
>>>     thankyou_date = Column(DateTime)
>>>     source = Column(String(255, u'utf8_unicode_ci'), index=True)
>>>     amount_level = Column(Text(collation=u'utf8_unicode_ci'))
>>>     contribution_recur_id = Column(ForeignKey(u'
>>> civicrm_contribution_recur.id', ondelete=u'SET NULL'), index=True)
>>>     is_test = Column(Integer, server_default=text("'0'"))
>>>     is_pay_later = Column(Integer, server_default=text("'0'"))
>>>     contribution_status_id = Column(INTEGER, index=True)
>>>     address_id = Column(ForeignKey(u'civicrm_address.id', 
>>> ondelete=u'SET NULL'), index=True)
>>>     check_number = Column(String(255, u'utf8_unicode_ci'))
>>>     campaign_id = Column(ForeignKey(u'civicrm_campaign.id', 
>>> ondelete=u'SET NULL'), index=True)
>>>     tax_amount = Column(DECIMAL(20, 2))
>>>     creditnote_id = Column(String(255, u'utf8_unicode_ci'), index=True)
>>>     revenue_recognition_date = Column(DateTime)
>>>     invoice_number = Column(String(255, u'utf8_unicode_ci'))
>>>
>>>     address = relationship(u'CivicrmAddress')
>>>     contact = relationship(u'CivicrmContact')
>>> class Address(Base):
>>>     __tablename__ = "civicrm_address"
>>>     id = Column(Integer, primary_key=True)
>>>     contact_id = Column(ForeignKey(u'civicrm_contact.id', 
>>> ondelete=u'CASCADE'), index=True)
>>>     street_address = Column(String(96, u'utf8_unicode_ci'))
>>>     city = Column(String(64, u'utf8_unicode_ci'))
>>>     postalcode = Column(String(64, u'utf8_unicode_ci'))
>>>     state_province_id = Column(String(64))
>>>     country_id = Column(ForeignKey(u'civicrm_country.id', 
>>> ondelete=u'SET NULL'))
>>> class Country(Base):
>>>     __tablename__ = "civicrm_country"
>>>     id = Column(Integer, primary_key=True)
>>>     name = Column(String(64, u'utf8_unicode_ci'))
>>> class State(Base):
>>>     __tablename__ = "civicrm_state_province"
>>>     id = Column(Integer, primary_key=True)
>>>     name = Column(String(64, u'utf8_unicode_ci'))
>>>     abbreviation = Column(String(4, u'utf8_unicode_ci'))
>>>     country_id = Column(ForeignKey(u'civicrm_country.id'))
>>> class Entity_Tag(Base):
>>>     __tablename__ = "civicrm_entity_tag"
>>>     id = Column(INTEGER, primary_key=True)
>>>     entity_id = Column(INTEGER, nullable=False, index=True)
>>>     tag_id = Column(ForeignKey(u'civicrm_tag.id', ondelete=u'CASCADE'))
>>>     
>>> s = Session()
>>> subquery = (
>>>     s.query(Contact.display_name)
>>>     .filter(
>>>         Contribution.receive_date > datetime.date(2005, 7, 1),
>>>         Contribution.contact_id == Contact.id,
>>>         Contact.id == Entity_Tag.entity_id,
>>>         Entity_Tag.tag_id == 6,
>>>     )
>>>     .subquery()
>>>     )
>>> result = (
>>>     s.query(
>>>         Contact.last_name,
>>>         Contact.first_name,
>>>         Address.street_address,
>>>         Address.city,
>>>         Address.postalcode,
>>>         State.name,
>>>         Country.name.label("country"),
>>>     )
>>>     .filter(
>>>         Contact.id == Entity_Tag.entity_id,
>>>         Entity_Tag.tag_id == 6,
>>>         Contact.id == Address.contact_id,
>>>         Address.state_province_id == State.id,
>>>         Address.country_id == Country.id,
>>>         Contact.display_name.notin_(subquery),
>>>     )
>>>     .distinct()
>>>     .all()
>>> )
>>> for row in result:
>>>     print(row)
>>>
>>> and the error Traceback is:
>>>
>>> Traceback (most recent call last):
>>>   File 
>>> "/private/var/mobile/Containers/Shared/AppGroup/05D14C00-CCAC-4E98-A3CC-96C6944B8534/Pythonista3/Documents/sqlalchemy-test.py",
>>>  
>>> line 108, in <module>
>>>     Contact.display_name.notin_(subquery),
>>>   File 
>>> "/private/var/mobile/Containers/Shared/AppGroup/05D14C00-CCAC-4E98-A3CC-96C6944B8534/Pythonista3/Documents/site-packages/sqlalchemy/orm/query.py",
>>>  
>>> line 2588, in all
>>>     return list(self)
>>>   File 
>>> "/private/var/mobile/Containers/Shared/AppGroup/05D14C00-CCAC-4E98-A3CC-96C6944B8534/Pythonista3/Documents/site-packages/sqlalchemy/orm/query.py",
>>>  
>>> line 2736, in __iter__
>>>     return self._execute_and_instances(context)
>>>   File 
>>> "/private/var/mobile/Containers/Shared/AppGroup/05D14C00-CCAC-4E98-A3CC-96C6944B8534/Pythonista3/Documents/site-packages/sqlalchemy/orm/query.py",
>>>  
>>> line 2751, in _execute_and_instances
>>>     result = conn.execute(querycontext.statement, self._params)
>>>   File 
>>> "/private/var/mobile/Containers/Shared/AppGroup/05D14C00-CCAC-4E98-A3CC-96C6944B8534/Pythonista3/Documents/site-packages/sqlalchemy/engine/base.py",
>>>  
>>> line 914, in execute
>>>     return meth(self, multiparams, params)
>>>   File 
>>> "/private/var/mobile/Containers/Shared/AppGroup/05D14C00-CCAC-4E98-A3CC-96C6944B8534/Pythonista3/Documents/site-packages/sqlalchemy/sql/elements.py",
>>>  
>>> line 323, in _execute_on_connection
>>>     return connection._execute_clauseelement(self, multiparams, params)
>>>   File 
>>> "/private/var/mobile/Containers/Shared/AppGroup/05D14C00-CCAC-4E98-A3CC-96C6944B8534/Pythonista3/Documents/site-packages/sqlalchemy/engine/base.py",
>>>  
>>> line 1010, in _execute_clauseelement
>>>     compiled_sql, distilled_params
>>>   File 
>>> "/private/var/mobile/Containers/Shared/AppGroup/05D14C00-CCAC-4E98-A3CC-96C6944B8534/Pythonista3/Documents/site-packages/sqlalchemy/engine/base.py",
>>>  
>>> line 1146, in _execute_context
>>>     context)
>>>   File 
>>> "/private/var/mobile/Containers/Shared/AppGroup/05D14C00-CCAC-4E98-A3CC-96C6944B8534/Pythonista3/Documents/site-packages/sqlalchemy/engine/base.py",
>>>  
>>> line 1341, in _handle_dbapi_exception
>>>     exc_info
>>>   File 
>>> "/private/var/mobile/Containers/Shared/AppGroup/05D14C00-CCAC-4E98-A3CC-96C6944B8534/Pythonista3/Documents/site-packages/sqlalchemy/util/compat.py",
>>>  
>>> line 200, in raise_from_cause
>>>     reraise(type(exception), exception, tb=exc_tb)
>>>   File 
>>> "/private/var/mobile/Containers/Shared/AppGroup/05D14C00-CCAC-4E98-A3CC-96C6944B8534/Pythonista3/Documents/site-packages/sqlalchemy/engine/base.py",
>>>  
>>> line 1139, in _execute_context
>>>     context)
>>>   File 
>>> "/private/var/mobile/Containers/Shared/AppGroup/05D14C00-CCAC-4E98-A3CC-96C6944B8534/Pythonista3/Documents/site-packages/sqlalchemy/engine/default.py",
>>>  
>>> line 450, in do_execute
>>>     cursor.execute(statement, parameters)
>>>   File 
>>> "/private/var/mobile/Containers/Shared/AppGroup/05D14C00-CCAC-4E98-A3CC-96C6944B8534/Pythonista3/Documents/site-packages-2/pymysql/cursors.py",
>>>  
>>> line 170, in execute
>>>     result = self._query(query)
>>>   File 
>>> "/private/var/mobile/Containers/Shared/AppGroup/05D14C00-CCAC-4E98-A3CC-96C6944B8534/Pythonista3/Documents/site-packages-2/pymysql/cursors.py",
>>>  
>>> line 328, in _query
>>>     conn.query(q)
>>>   File 
>>> "/private/var/mobile/Containers/Shared/AppGroup/05D14C00-CCAC-4E98-A3CC-96C6944B8534/Pythonista3/Documents/site-packages-2/pymysql/connections.py",
>>>  
>>> line 517, in query
>>>     self._affected_rows = self._read_query_result(unbuffered=unbuffered)
>>>   File 
>>> "/private/var/mobile/Containers/Shared/AppGroup/05D14C00-CCAC-4E98-A3CC-96C6944B8534/Pythonista3/Documents/site-packages-2/pymysql/connections.py",
>>>  
>>> line 732, in _read_query_result
>>>     result.read()
>>>   File 
>>> "/private/var/mobile/Containers/Shared/AppGroup/05D14C00-CCAC-4E98-A3CC-96C6944B8534/Pythonista3/Documents/site-packages-2/pymysql/connections.py",
>>>  
>>> line 1075, in read
>>>     first_packet = self.connection._read_packet()
>>>   File 
>>> "/private/var/mobile/Containers/Shared/AppGroup/05D14C00-CCAC-4E98-A3CC-96C6944B8534/Pythonista3/Documents/site-packages-2/pymysql/connections.py",
>>>  
>>> line 684, in _read_packet
>>>     packet.check_error()
>>>   File 
>>> "/private/var/mobile/Containers/Shared/AppGroup/05D14C00-CCAC-4E98-A3CC-96C6944B8534/Pythonista3/Documents/site-packages-2/pymysql/protocol.py",
>>>  
>>> line 220, in check_error
>>>     err.raise_mysql_exception(self._data)
>>>   File 
>>> "/private/var/mobile/Containers/Shared/AppGroup/05D14C00-CCAC-4E98-A3CC-96C6944B8534/Pythonista3/Documents/site-packages-2/pymysql/err.py",
>>>  
>>> line 109, in raise_mysql_exception
>>>     raise errorclass(errno, errval)
>>> InternalError: (pymysql.err.InternalError) (1054, u"Unknown column 
>>> 'civicrm_address.postalcode' in 'field list'") [SQL: u'SELECT DISTINCT 
>>> civicrm_contact.last_name AS civicrm_contact_last_name, 
>>> civicrm_contact.first_name AS civicrm_contact_first_name, 
>>> civicrm_address.street_address AS civicrm_address_street_address, 
>>> civicrm_address.city AS civicrm_address_city, civicrm_address.postalcode AS 
>>> civicrm_address_postalcode, civicrm_state_province.name AS 
>>> civicrm_state_province_name, civicrm_country.name AS country \nFROM 
>>> civicrm_contact, civicrm_address, civicrm_state_province, civicrm_country, 
>>> civicrm_entity_tag \nWHERE civicrm_contact.id = 
>>> civicrm_entity_tag.entity_id AND civicrm_entity_tag.tag_id = %(tag_id_1)s 
>>> AND civicrm_contact.id = civicrm_address.contact_id AND 
>>> civicrm_address.state_province_id = civicrm_state_province.id AND 
>>> civicrm_address.country_id = civicrm_country.id AND 
>>> civicrm_contact.display_name NOT IN (SELECT civicrm_contact.display_name 
>>> \nFROM civicrm_contribution \nWHERE civicrm_contribution.receive_date > 
>>> %(receive_date_1)s AND civicrm_contribution.contact_id = 
>>> civicrm_contact.id AND civicrm_contact.id = 
>>> civicrm_entity_tag.entity_id AND civicrm_entity_tag.tag_id = 
>>> %(tag_id_2)s)'] [parameters: {u'receive_date_1': datetime.date(2005, 7, 1), 
>>> u'tag_id_1': 6, u'tag_id_2': 6}]
>>>
>>>
>>> On Thursday, August 22, 2019 at 9:51:22 PM UTC-4, Ira Fuchs wrote:
>>>>
>>>> Yes, that would appear to be the problem. When I was in 2.7 it worked 
>>>> and in 3.6 the version of pymysql requires a later version (>5.5) of the 
>>>> server. I am not able to upgrade the server at this point so I need to 
>>>> figure out how to get my notebook back to Python 2 for the time being.
>>>>
>>>> On Aug 22, 2019, at 9:37 PM, Peter Schutt <peter....@gmail.com> wrote:
>>>>
>>>> Some time between yesterday and today you have switched python 
>>>> interpreters between 2.7 and 3.6. Yesterday your errors were originating 
>>>> from modules located in "/Users/ihf/anaconda2/lib/python2.7/", today they 
>>>> seem to be coming from "~/anaconda2/lib/python3.6/". To be honest, it's 
>>>> better if you are using python 3.x as 2.7 goes end of life in only a few 
>>>> short months. This would explain why you had to reinstall pymysql as you 
>>>> are now working in a totally different environment.
>>>>
>>>> The last error you've shown originates from the database layer. What 
>>>> version of mysql are you using and might that have changed along with your 
>>>> environment? utf8mb4 was introduced in 5.5.3, read more here: 
>>>> https://stackoverflow.com/questions/21911733/error-1115-42000-unknown-character-set-utf8mb4
>>>> .
>>>>
>>>> On Friday, 23 August 2019 11:05:14 UTC+10, Ira Fuchs wrote:
>>>>>
>>>>> OK, I made a few changes/corrections to the Class definitions:
>>>>>
>>>>> class Contact(Base):
>>>>>     __tablename__ = "civicrm_contact"
>>>>>     id = Column(Integer, primary_key=True)
>>>>>     first_name = Column(String(64, u'utf8_unicode_ci'), index=True)
>>>>>     middle_name = Column(String(64, u'utf8_unicode_ci'))
>>>>>     last_name = Column(String(64, u'utf8_unicode_ci'), index=True)
>>>>>     display_name = Column(String(128, u'utf8_unicode_ci'))
>>>>>                           
>>>>> class Contribution(Base):
>>>>>     __tablename__ = 'civicrm_contribution'
>>>>>
>>>>>     id = Column(INTEGER, primary_key=True, comment=u'Contribution ID')
>>>>>     contact_id = Column(ForeignKey(u'civicrm_contact.id', 
>>>>> ondelete=u'CASCADE'), nullable=False, index=True)
>>>>>     financial_type_id = Column(ForeignKey(u'civicrm_financial_type.id'), 
>>>>> index=True)
>>>>>     contribution_page_id = Column(ForeignKey(u'
>>>>> civicrm_contribution_page.id', ondelete=u'SET NULL'), index=True)
>>>>>     payment_instrument_id = Column(INTEGER, index=True, comment=u'FK 
>>>>> to Payment Instrument')
>>>>>     receive_date = Column(DateTime, index=True, comment=u'when was 
>>>>> gift received')
>>>>>     non_deductible_amount = Column(DECIMAL(20, 2), 
>>>>> server_default=text("'0.00'"))
>>>>>     total_amount = Column(DECIMAL(20, 2), nullable=False)
>>>>>     fee_amount = Column(DECIMAL(20, 2), comment=u'actual processor fee 
>>>>> if known - may be 0.')
>>>>>     net_amount = Column(DECIMAL(20, 2))
>>>>>     trxn_id = Column(String(255, u'utf8_unicode_ci'), unique=True)
>>>>>     invoice_id = Column(String(255, u'utf8_unicode_ci'))
>>>>>     currency = Column(String(3, u'utf8_unicode_ci'))
>>>>>     cancel_date = Column(DateTime, comment=u'when was gift cancelled')
>>>>>     cancel_reason = Column(Text(collation=u'utf8_unicode_ci'))
>>>>>     receipt_date = Column(DateTime)
>>>>>     thankyou_date = Column(DateTime, comment=u'when (if) was donor 
>>>>> thanked')
>>>>>     source = Column(String(255, u'utf8_unicode_ci'), index=True, 
>>>>> comment=u'Origin of this Contribution.')
>>>>>     amount_level = Column(Text(collation=u'utf8_unicode_ci'))
>>>>>     contribution_recur_id = Column(ForeignKey(u'
>>>>> civicrm_contribution_recur.id', ondelete=u'SET NULL'), index=True)
>>>>>     is_test = Column(Integer, server_default=text("'0'"))
>>>>>     is_pay_later = Column(Integer, server_default=text("'0'"))
>>>>>     contribution_status_id = Column(INTEGER, index=True)
>>>>>     address_id = Column(ForeignKey(u'civicrm_address.id', 
>>>>> ondelete=u'SET NULL'), index=True)
>>>>>     check_number = Column(String(255, u'utf8_unicode_ci'))
>>>>>     campaign_id = Column(ForeignKey(u'civicrm_campaign.id', 
>>>>> ondelete=u'SET NULL'), index=True)
>>>>>     tax_amount = Column(DECIMAL(20, 2), comment=u'Total tax amount of 
>>>>> this contribution.')
>>>>>     creditnote_id = Column(String(255, u'utf8_unicode_ci'), index=True)
>>>>>     revenue_recognition_date = Column(DateTime, comment=u'Stores the 
>>>>> date when revenue should be recognized.')
>>>>>     invoice_number = Column(String(255, u'utf8_unicode_ci'), 
>>>>> comment=u'Human readable invoice number')
>>>>>
>>>>>     address = relationship(u'CivicrmAddress')
>>>>>     contact = relationship(u'CivicrmContact')
>>>>> class Address(Base):
>>>>>     __tablename__ = "civicrm_address"
>>>>>     id = Column(Integer, primary_key=True)
>>>>>     contact_id = Column(ForeignKey(u'civicrm_contact.id', 
>>>>> ondelete=u'CASCADE'), index=True)
>>>>>     street_address = Column(String(96, u'utf8_unicode_ci'))
>>>>>     city = Column(String(64, u'utf8_unicode_ci'))
>>>>>     postalcode = Column(String(64, u'utf8_unicode_ci'))
>>>>>     state_province_id = Column(String(64))
>>>>>     country_id = Column(ForeignKey(u'civicrm_country.id', 
>>>>> ondelete=u'SET NULL'))
>>>>> class Country(Base):
>>>>>     __tablename__ = "civicrm_country"
>>>>>     id = Column(Integer, primary_key=True)
>>>>>     name = Column(String(64, u'utf8_unicode_ci'))
>>>>> class State(Base):
>>>>>     __tablename__ = "civicrm_state_province"
>>>>>     id = Column(Integer, primary_key=True)
>>>>>     name = Column(String(64, u'utf8_unicode_ci'))
>>>>>     abbreviation = Column(String(4, u'utf8_unicode_ci'))
>>>>>     country_id = Column(ForeignKey(u'civicrm_country.id'))
>>>>> class Entity_Tag(Base):
>>>>>     __tablename__ = "civicrm_entity_tag"
>>>>>     id = Column(INTEGER, primary_key=True)
>>>>>     entity_id = Column(INTEGER, nullable=False, index=True)
>>>>>     tag_id = Column(ForeignKey(u'civicrm_tag.id', 
>>>>> ondelete=u'CASCADE'))
>>>>>
>>>>> then I created a session and ran your query (with one or two 
>>>>> corrections:
>>>>>
>>>>>     s = Session()
>>>>>     subquery = (
>>>>>         s.query(Contact.display_name)
>>>>>         .filter(
>>>>>             Contribution.receive_date > datetime.date(2005, 7, 1),
>>>>>             Contribution.contact_id == Contact.id,
>>>>>             Contact.id == Entity_Tag.entity_id,
>>>>>             Entity_Tag.tag_id == 6,
>>>>>         )
>>>>>         .subquery()
>>>>>     )
>>>>>     result = (
>>>>>         s.query(
>>>>>             Contact.last_name,
>>>>>             Contact.first_name,
>>>>>             Address.street_address,
>>>>>             Address.city,
>>>>>             Address.postalcode,
>>>>>             State.name,
>>>>>             Country.name.label("country"),
>>>>>         )
>>>>>         .filter(
>>>>>             Contact.id == Entity_Tag.entity_id,
>>>>>             Entity_Tag.tag_id == 6,
>>>>>             Contact.id == Address.contact_id,
>>>>>             Address.state_province_id == State.id,
>>>>>             Address.country_id == Country.id,
>>>>>             Contact.display_name.notin_(subquery),
>>>>>         )
>>>>>         .distinct()
>>>>>         .all()
>>>>>     )
>>>>>
>>>>> and the result is the same error as when I just try to execute an SQL 
>>>>> statement without using ORM(I'm note including the entire traceback 
>>>>> unless 
>>>>> you need it):
>>>>>
>>>>> InternalError: (pymysql.err.InternalError) (1115, "Unknown character set: 
>>>>> 'utf8mb4'")
>>>>>
>>>>> Since this worked before, all I can think is that I somehow updated or 
>>>>> changed pymysql and the result is this error.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>> -- 
>>>> SQLAlchemy - 
>>>> The Python SQL Toolkit and Object Relational Mapper
>>>>  
>>>> http://www.sqlalchemy.org/
>>>>  
>>>> To post example code, please provide an MCVE: Minimal, Complete, and 
>>>> Verifiable Example. See http://stackoverflow.com/help/mcve for a full 
>>>> description.
>>>> --- 
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>>>> https://groups.google.com/d/msgid/sqlalchemy/df9aa766-90d3-440b-8b48-18bfc47f568f%40googlegroups.com
>>>>  
>>>> <https://groups.google.com/d/msgid/sqlalchemy/df9aa766-90d3-440b-8b48-18bfc47f568f%40googlegroups.com?utm_medium=email&utm_source=footer>
>>>> .
>>>>
>>>>
>>>>

-- 
SQLAlchemy - 
The Python SQL Toolkit and Object Relational Mapper

http://www.sqlalchemy.org/

To post example code, please provide an MCVE: Minimal, Complete, and Verifiable 
Example.  See  http://stackoverflow.com/help/mcve for a full description.
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