Faker
Faker makes fake data. It looks like this:
>>> import faker
>>> faker.name.name()
'Gregory Spinka III'
>>> faker.internet.email()
'jayne@miller.com'
>>> faker.company.name()
'Barton, Heller and Considine'
>>> faker.address.street_address()
'106810 Leannon Drive'
If you are a Django developer, you might also be interested in django-poseur, which provides some higher-level tools for Django built on this library.