Python Fundamentals Training - More on Functions

In the beginning of class 2, Simeon will:
- revisit argument declaration and passing
- cover some common gotchas
- talk about namespaces and scoping
- reading/writing files

[mmafan]

I'm not sure if anyone will read this, but what happens in python, if "x" exists in the global namespace, but not the local. and you have a definition such as x = x + 1? will it define a local variable x with the result of the global variable x + 1?