Adding Macros to Python

Question

I would like to invoke the following code in-situ wherever I refer to MY_MACRO in my code below.

# MY_MACRO
frameinfo = getframeinf         


        

Answer 1

The use of exec is frowned upon, but it ought to do the trick here. For example, take the following macro:

MY_MACRO = """
print foo            
"""

and run it by using the following code:

foo = "breaking the rules"
exec MY_MACRO in globals(),locals() 

Always be careful with exec, because it can have strange side-effects and opens up opportunities for code injection.