doublethink
RethinkDB python library. Provides connection manager and ORM framework (object-relational mapping, sometimes called ODM or OM for nosql databases).
Connection Manager
Three main purposes:
round-robin connections among database servers
make sure connections close at proper time
retry retry-able queries on failure
Not currently a connection pool, because it doesn’t keep any connections open. Should be possible to implement connection pooling without changing the API. However, testing suggests there would be no appreciable performance gain from connection pooling.
Usage Example
import doublethink
rr = doublethink.Rethinker(['db0.foo.com', 'db0.foo.com:38015', 'db1.foo.com'], 'my_db')
rr.table('mytable').insert({'foo':'bar','baz':2}).run()
for result in rr.table('mytable'):
print("result={}".format(result))
ORM
Simple yet powerful ORM system. Does not enforce a schema.
Usage Example
import doublethink
rr = doublethink.Rethinker(['db0.foo.com', 'db0.foo.com:38015', 'db1.foo.com'], 'my_db')
class MyTable(doublethink.Document):
pass
MyTable.table_create(rr)
doc1 = MyTable(rr, {'animal': 'elephant', 'size': 'large'})
doc1.save()
doc1_copy = MyTable.load(rr, doc1.id)
doc1_copy.food = 'bread'
doc1_copy.save()
doc1.first_name = 'Frankworth'
doc1.save()
doc1.refresh()
Service Registry
Now also has a ServiceRegistry class, a lightweight solution for service discovery for distributed services. Maintains service info and status in a rethinkdb table called “services”.
1 maintainer
Metadata
1 maintainer
Release files for doublethink 0.4.10
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Total release size: 31.6 kB
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