title: How to access a Python global variable from C?
body: <p>I have some global variables in a Python script. Some functions in that script call into C - is it possible to set one of those variables while in C and if so, how?</p>
  
  <p>I appreciate that this isn't a very nice design in the first place, but I need to make a small change to existing code, I don't want to embark on major refactoring of existing scripts.</p>