The module pyteal.ast.int shadows the Python keyword int

[fabrice102]

When importing pyteal by from pyteal import * (as in the documentation examples), the module pyteal.ast.int shadows the Python keyword int.

In particular, we have

$ python3 -c "from pyteal import *; print(int(5))"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
TypeError: 'module' object is not callable

while:

$ python3 -c "print(int(5))"
5

Requirements

Stop submodules from being exported, small change. They shouldn't be exported in the first place

Urgency

Could be a major blocker for some people and it's a simple change that we can just knock out.

[jasonpaulos]

Great find, I will fix this and release a new patch version soon.