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Dec 01, 2014
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Pragmáticoéaquiloquecontemconsideraçõesdeordemprática,realista,comalvobemdefinido.Serpragmáticoéser
práticoéterobjetivosdefinidos!
classEntity(Base):__tablename__='entity'id=Column(Integer,Sequence('id_seq'),primary_key=True)name=Column(String(50))
def__init__(self,name):self.name=name
def__repr__(self):return"<Entity('%d','%s')>"%(self.id,self.name)
classUserForm(ModelForm):classMeta:model=User
classUserForm(Form):name=TextField(validators=[DataRequired(),Length(max=100)])email=TextField(validators=[DataRequired(),Length(max=255)])
<title>{%blocktitle%}{%endblock%}</title><ul>{%foruserinusers%}<li><ahref="{{user.url}}">{{user.username}}</a></li>{%endfor%}</ul>
revision='1975ea83b712'down_revision=None
fromalembicimportopimportsqlalchemyassa
defupgrade():pass
defdowngrade():pass
"""$alembicrevision-m"Addacolumn""""
revision='ae1027a6acf'down_revision='1975ea83b712'
fromalembicimportopimportsqlalchemyassa
defupgrade():op.add_column('account',sa.Column('last_transaction_date',sa.DateTime))
defdowngrade():op.drop_column('account','last_transaction_date')
defupgrade():op.create_table('account',sa.Column('id',sa.Integer,primary_key=True),sa.Column('name',sa.String(50),nullable=False),sa.Column('description',sa.Unicode(200)),)
defdowngrade():op.drop_table('account')
http://techblog.netflix.com/2013/03/python-at-netflix.html
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