When trying to run basic examples from a virtualenv, I get this error caused by the local types.py module taking precedent over python's builtin types module.

The re module implements Regular Expression, a powerful syntax for searching patterns in text. Regular Expressions are available in most programming languages. You need to learn some special ...

That's why Instagram engineers have developed 'strict modules' for Python. "One reasonable take might be that we're stretching Python beyond what it was intended for.