Declare templabelcount as a global in atom().

[catseye]

I found this buglet using pyflakes -- templabelcount needs to be defined (at toplevel) and declared global in order for atom() to correctly see it. (Note, though, that I haven't tested this code path either before or after this change.)

[michaelcmartin]

This is technically safe as-is; templabelcount will be initialized or created by parse(), and only parse_line() updates it. atom() only reads the value.

However, the change does improve the robustness of the code should atom need to do updates later.