SQLAlchemy (>= 1.1, < 1.2)
bonobo (>= 0.4, < 0.5)

[dev]
bonobo (>= 0.4, < 0.5)
coverage (>= 4.4, < 5.0)
pytest (>= 3.1, < 4.0)
pytest-cov (>= 2.5, < 3.0)
