Makes transaction/session management more explicit
Usage:
from omnia import Transaction
with Transaction() as txn:
txn.session.add(MyModel(id=1, value=2))
txn.session.commit()
models = txn.session.execute(select([MyModel])).fetchall()
print(models[0].value) # 2
# transaction is commited on context exitSavepoint usage:
from omnia import Transaction
with Transaction() as txn:
with txn.savepoint() as sp:
with sp.savepoint() as sp2:
sp.session.add(MyModel(id=1, value=2))
sp.rollback()
models = txn.session.execute(select([MyModel])).fetchall()
print(models) # []
# transaction is commited on context exitAbout tox
Tox is a generic virtualenv management and test command line tool you can use for:
checking your package installs correctly with different Python versions and interpreters running your tests in each of the environments, configuring your test tool of choice acting as a frontend to Continuous Integration servers, greatly reducing boilerplate and merging CI and shell-based testing. How to use tox:
pip install tox # (in global environment)
tox # install all dependencies and run tests
tox -r reinstall dependencies and run tests